diff --git a/sys/contrib/dev/acpica/changes.txt b/sys/contrib/dev/acpica/changes.txt
index 2c13c692d19..9c1952e49d5 100644
--- a/sys/contrib/dev/acpica/changes.txt
+++ b/sys/contrib/dev/acpica/changes.txt
@@ -1,3 +1,27 @@
+----------------------------------------
+8 April 2026. Summary of changes for version 20260804:
+
+Major changes:
+
+• ACPI Table Enhancements:
+Updated IORT and MADT template compilations to add new IWB and GICv5 translator/router/ITS entries. Introduced full support for the new DTPR table, including compiler and disassembler handling, template fixes, and register structure refinements. — Jose Marinho and Michal Camacho Romero
+
+• Expanded IDs, GUIDs, and Methods:
+Added Framework Computer Hardware IDs, modern standby _DSM GUIDs, and TPM2 start methods. Updated _DSM Arg3 formatting and _CPC handling to align with newer ACPI specifications and avoid Linux compatibility warnings. — Daniel Schaefer and Saket Dumbre
+
+• Compiler, Disassembler, and Tooling Improvements:
+Enhanced the ASL compiler and disassembler with External() deduplication, alias node support, improved validation of malformed inputs, and comma-separated Package output. Updated acpisrc to recognize missing structures and improved parse tree walk termination logic. — ikaros and Pawel Chmielewski
+
+• Security and Stability Fixes:
+Fixed multiple critical issues, including heap-buffer-overflows, use-after-free, NULL pointer dereferences, integer overflows, and out-of-bounds accesses across AML parsing, interpretation, and table handling code paths. — ikaros and Weiming Shi
+
+• Resource and Register Refactoring:
+Corrected I2C LVR resource descriptor handling and refactored TPR Base/Limit registers to use compatible bitmask representations, with additional validation and cleanup across DTPR-related code. — Akhil R and Michal Camacho Romero
+
+• General Cleanup and Build Fixes:
+Fixed a syntax error caused by a stray character, corrected spelling issues, improved comment alignment and formatting, updated dummy compiler metadata, and disabled excessive MSVC bitfield warnings (C4214) to improve build clarity. — Colin Ian King and Saket Dumbre
+
+
 ----------------------------------------
 12 December 2025. Summary of changes for version 20251212:
 
diff --git a/sys/contrib/dev/acpica/common/acfileio.c b/sys/contrib/dev/acpica/common/acfileio.c
index 19274cb4bdd..4ae0db12b09 100644
--- a/sys/contrib/dev/acpica/common/acfileio.c
+++ b/sys/contrib/dev/acpica/common/acfileio.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -452,6 +452,15 @@ AcGetOneTableFromFile (
         TableLength = TableHeader.Length;
     }
 
+    /* Table length must be at least large enough to hold the header */
+
+    if (TableLength < HeaderLength)
+    {
+        fprintf (stderr, "Table length too small for header: 0x%.2X\n",
+            TableLength);
+        return (AE_BAD_HEADER);
+    }
+
     /* Allocate a buffer for the entire table */
 
     Table = AcpiOsAllocate ((ACPI_SIZE) TableLength);
diff --git a/sys/contrib/dev/acpica/common/acgetline.c b/sys/contrib/dev/acpica/common/acgetline.c
index 2793f26077b..8ad4f5174d4 100644
--- a/sys/contrib/dev/acpica/common/acgetline.c
+++ b/sys/contrib/dev/acpica/common/acgetline.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/adfile.c b/sys/contrib/dev/acpica/common/adfile.c
index f87b329d918..dbf0eaeb2a2 100644
--- a/sys/contrib/dev/acpica/common/adfile.c
+++ b/sys/contrib/dev/acpica/common/adfile.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/adisasm.c b/sys/contrib/dev/acpica/common/adisasm.c
index 83125098cbd..7016d46dc84 100644
--- a/sys/contrib/dev/acpica/common/adisasm.c
+++ b/sys/contrib/dev/acpica/common/adisasm.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/adwalk.c b/sys/contrib/dev/acpica/common/adwalk.c
index b7484315fe5..cd5c2b1d091 100644
--- a/sys/contrib/dev/acpica/common/adwalk.c
+++ b/sys/contrib/dev/acpica/common/adwalk.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/ahids.c b/sys/contrib/dev/acpica/common/ahids.c
index 81b21253fee..7f011ec1020 100644
--- a/sys/contrib/dev/acpica/common/ahids.c
+++ b/sys/contrib/dev/acpica/common/ahids.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -202,6 +202,14 @@ const AH_DEVICE_ID  AslDeviceIds[] =
     {"CPLM3218",    "Capella Micro CM3218x Ambient Light Sensor"},
     {"DELLABCE",    "Dell Airplane Mode Switch Driver"},
     {"DLAC3002",    "Qualcomm Atheros Bluetooth UART Transport"},
+    {"FRMW0001",    "Framework I2C HID from EC (Laptop 13 Intel 11-13th Gen)"},
+    {"FRMW0002",    "Framework PS2 Touchpad Emulation"},
+    {"FRMW0003",    "Framework I2C HID from EC (Laptop 16 AMD Ryzen 7040)"},
+    {"FRMW0004",    "Framework I2C HID from EC for keyboard media ikeys"},
+    {"FRMW0005",    "Framework I2C HID from EC for ALS Sensor"},
+    {"FRMW0006",    "Framework Desktop ARGB HID Interface (Chrome EC RGBKBD)"},
+    {"FRMWC004",    "Framework EC Controller"},
+    {"FRMWC006",    "Framework EC Sensor Hub"},
     {"FTTH5506",    "FocalTech 5506 Touch Controller"},
     {"HAD0F28",     "Intel HDMI Audio Driver"},
     {"INBC0000",    "GPIO Expander"},
diff --git a/sys/contrib/dev/acpica/common/ahpredef.c b/sys/contrib/dev/acpica/common/ahpredef.c
index 3a94a24897a..10a56aba7dc 100644
--- a/sys/contrib/dev/acpica/common/ahpredef.c
+++ b/sys/contrib/dev/acpica/common/ahpredef.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/ahtable.c b/sys/contrib/dev/acpica/common/ahtable.c
index 109a723fd93..7bde21e2264 100644
--- a/sys/contrib/dev/acpica/common/ahtable.c
+++ b/sys/contrib/dev/acpica/common/ahtable.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -216,6 +216,7 @@ const AH_TABLE      AcpiGbl_SupportedTables[] =
     {ACPI_SIG_DBGP, "Debug Port Table"},
     {ACPI_SIG_DMAR, "DMA Remapping Table"},
     {ACPI_SIG_DRTM, "Dynamic Root of Trust for Measurement Table"},
+    {ACPI_SIG_DTPR, "DMA TXT Protection Ranges Table"},
     {ACPI_SIG_DSDT, "Differentiated System Description Table (AML table)"},
     {ACPI_SIG_ECDT, "Embedded Controller Boot Resources Table"},
     {ACPI_SIG_EINJ, "Error Injection Table"},
diff --git a/sys/contrib/dev/acpica/common/ahuuids.c b/sys/contrib/dev/acpica/common/ahuuids.c
index b87de1cdff8..40906109ae3 100644
--- a/sys/contrib/dev/acpica/common/ahuuids.c
+++ b/sys/contrib/dev/acpica/common/ahuuids.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -204,6 +204,11 @@ const AH_UUID  Gbl_AcpiUuids[] =
     {"Cache Properties",            UUID_CACHE_PROPERTIES},
     {"Physical Package Property",   UUID_PHYSICAL_PROPERTY},
 
+    {"[Modern Standby]",            NULL},
+    {"Modern Standby Microsoft",    UUID_LPS0_MICROSOFT},
+    {"Modern Standby Intel",        UUID_LPS0_INTEL},
+    {"Modern Standby AMD",          UUID_LPS0_AMD},
+
     {"[Miscellaneous]",             NULL},
     {"Platform-wide Capabilities",  UUID_PLATFORM_CAPABILITIES},
     {"Dynamic Enumeration",         UUID_DYNAMIC_ENUMERATION},
diff --git a/sys/contrib/dev/acpica/common/cmfsize.c b/sys/contrib/dev/acpica/common/cmfsize.c
index c6cedf9a086..8e6bee60756 100644
--- a/sys/contrib/dev/acpica/common/cmfsize.c
+++ b/sys/contrib/dev/acpica/common/cmfsize.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmextern.c b/sys/contrib/dev/acpica/common/dmextern.c
index d2eeffdfe02..405139beb81 100644
--- a/sys/contrib/dev/acpica/common/dmextern.c
+++ b/sys/contrib/dev/acpica/common/dmextern.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmrestag.c b/sys/contrib/dev/acpica/common/dmrestag.c
index 8c7cc4b9ef7..95300444b9d 100644
--- a/sys/contrib/dev/acpica/common/dmrestag.c
+++ b/sys/contrib/dev/acpica/common/dmrestag.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmswitch.c b/sys/contrib/dev/acpica/common/dmswitch.c
index 8d5ca2e016a..9d7b48ccacd 100644
--- a/sys/contrib/dev/acpica/common/dmswitch.c
+++ b/sys/contrib/dev/acpica/common/dmswitch.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmtable.c b/sys/contrib/dev/acpica/common/dmtable.c
index 140d279a486..d7a42323c20 100644
--- a/sys/contrib/dev/acpica/common/dmtable.c
+++ b/sys/contrib/dev/acpica/common/dmtable.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -568,6 +568,10 @@ static const char           *AcpiDmTpm2Subnames[] =
     "Reserved",
     "Reserved",
     "Command Response Buffer with ARM SMC",
+    "FIFO over I2C",
+    "Command Response Buffer with AMD Mailbox",
+    "Reserved",
+    "Command Response Buffer with ARM Framework-A",
     "Unknown Subtable Type"         /* Reserved */
 };
 
@@ -700,6 +704,7 @@ const ACPI_DMTABLE_DATA     AcpiDmTableData[] =
     {ACPI_SIG_DBGP, AcpiDmTableInfoDbgp,    NULL,           NULL,           TemplateDbgp},
     {ACPI_SIG_DMAR, NULL,                   AcpiDmDumpDmar, DtCompileDmar,  TemplateDmar},
     {ACPI_SIG_DRTM, NULL,                   AcpiDmDumpDrtm, DtCompileDrtm,  TemplateDrtm},
+    {ACPI_SIG_DTPR, NULL,                   AcpiDmDumpDtpr, DtCompileDtpr,  TemplateDtpr},
     {ACPI_SIG_ECDT, AcpiDmTableInfoEcdt,    NULL,           NULL,           TemplateEcdt},
     {ACPI_SIG_EINJ, NULL,                   AcpiDmDumpEinj, DtCompileEinj,  TemplateEinj},
     {ACPI_SIG_ERDT, NULL,                   AcpiDmDumpErdt, DtCompileErdt,  TemplateErdt},
diff --git a/sys/contrib/dev/acpica/common/dmtables.c b/sys/contrib/dev/acpica/common/dmtables.c
index c72f6451154..8ec0077c3c3 100644
--- a/sys/contrib/dev/acpica/common/dmtables.c
+++ b/sys/contrib/dev/acpica/common/dmtables.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmtbdump.c b/sys/contrib/dev/acpica/common/dmtbdump.c
index aa8b5aa7689..bb4f75b70ae 100644
--- a/sys/contrib/dev/acpica/common/dmtbdump.c
+++ b/sys/contrib/dev/acpica/common/dmtbdump.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmtbdump1.c b/sys/contrib/dev/acpica/common/dmtbdump1.c
index 3453ed479a2..5d2758c49ac 100644
--- a/sys/contrib/dev/acpica/common/dmtbdump1.c
+++ b/sys/contrib/dev/acpica/common/dmtbdump1.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -1670,6 +1670,115 @@ AcpiDmDumpDrtm (
 }
 
 
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDmDumpDtpr
+ *
+ * PARAMETERS:  Table               - A DTPR table
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Format the contents of a DTPR.
+ *
+ ******************************************************************************/
+
+void
+AcpiDmDumpDtpr (
+    ACPI_TABLE_HEADER       *Table)
+{
+    ACPI_STATUS                Status;
+    ACPI_TPR_ARRAY             *TprArr;
+    ACPI_TPR_INSTANCE          *TprInstance;
+    ACPI_TPR_AUX_SR            *TprAuxSr;
+    ACPI_TPR_SERIALIZE_REQUEST *TprSerializeRequest;
+    UINT32                     i = 0, j, InsCnt, TprRefCnt;
+    UINT32                     Offset = sizeof(ACPI_TABLE_DTPR);
+
+    /* Main table */
+
+    Status = AcpiDmDumpTable (Table->Length, 0, Table, 0, AcpiDmTableInfoDtpr);
+    if (ACPI_FAILURE (Status))
+    {
+        return;
+    }
+
+    /* Subtables */
+
+    while (Offset < Table->Length)
+    {
+        InsCnt = ((ACPI_TABLE_DTPR*) Table)->InsCnt;
+
+        for (i = 0; i < InsCnt; i++)
+        {
+            TprInstance = ACPI_ADD_PTR(ACPI_TPR_INSTANCE, Table, Offset);
+            Status = AcpiDmDumpTable(Table->Length, Offset, TprInstance,
+                                     sizeof(ACPI_TPR_INSTANCE), AcpiDmTableInfoDtprInstance);
+            if (ACPI_FAILURE (Status))
+            {
+                return;
+            }
+
+                /* Each of the TPR instances must have the same number of TPRs*/
+            TprRefCnt = TprInstance->TprCnt;
+
+            Offset += sizeof(ACPI_TPR_INSTANCE);
+
+            if (TprInstance->TprCnt < 2)
+            {
+                AcpiOsPrintf("TPR Instance No.%d has invalid number of TPRs.\n"
+                             "There should be at least 2 of them, but there is %d.",
+                             i, TprInstance->TprCnt);
+                return;
+            }
+            else
+            {
+                if (TprInstance->TprCnt != TprRefCnt)
+                {
+                    AcpiOsPrintf("Each of TPR instances should have equal\n"
+                                 "number of TPRs. TprInstance No.%d has %d TPRs"
+                                 ", while the reference TPR instance has %d.\n",
+                                 i, TprInstance->TprCnt, TprRefCnt);
+                    return;
+                }
+            }
+
+            for (j = 0; j < TprInstance->TprCnt; j++)
+            {
+                TprArr = ACPI_ADD_PTR(ACPI_TPR_ARRAY, Table, Offset);
+                Status = AcpiDmDumpTable(Table->Length, Offset, TprArr,
+                                         sizeof(ACPI_TPR_ARRAY), AcpiDmTableInfoDtprArr);
+                if (ACPI_FAILURE (Status))
+                {
+                    return;
+                }
+
+                Offset += sizeof(ACPI_TPR_ARRAY);
+            }
+        }
+
+        TprAuxSr = ACPI_ADD_PTR(ACPI_TPR_AUX_SR, Table, Offset);
+        Status = AcpiDmDumpTable(Table->Length, Offset, TprAuxSr,
+                                 sizeof(ACPI_TPR_AUX_SR), AcpiDmTableInfoDtprSerializeReq0);
+
+        Offset += sizeof(ACPI_TPR_AUX_SR);
+
+        for (i = 0; i < TprAuxSr->SrlCnt; i++)
+        {
+            TprSerializeRequest = ACPI_ADD_PTR(ACPI_TPR_SERIALIZE_REQUEST,
+                                               Table, Offset);
+            Status = AcpiDmDumpTable(Table->Length, Offset, TprSerializeRequest,
+                                     sizeof(ACPI_TPR_SERIALIZE_REQUEST), AcpiDmTableInfoDtprSerializeReq1);
+            if (ACPI_FAILURE (Status))
+            {
+                return;
+            }
+
+            Offset += sizeof(ACPI_TPR_SERIALIZE_REQUEST);
+        }
+    }
+}
+
+
 /*******************************************************************************
  *
  * FUNCTION:    AcpiDmDumpEinj
diff --git a/sys/contrib/dev/acpica/common/dmtbdump2.c b/sys/contrib/dev/acpica/common/dmtbdump2.c
index 957b3b00f21..21309e9c786 100644
--- a/sys/contrib/dev/acpica/common/dmtbdump2.c
+++ b/sys/contrib/dev/acpica/common/dmtbdump2.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmtbdump3.c b/sys/contrib/dev/acpica/common/dmtbdump3.c
index 458b94f6ee0..e827bf8e50c 100644
--- a/sys/contrib/dev/acpica/common/dmtbdump3.c
+++ b/sys/contrib/dev/acpica/common/dmtbdump3.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmtbinfo.c b/sys/contrib/dev/acpica/common/dmtbinfo.c
index 937ad013f07..afa3115fcbd 100644
--- a/sys/contrib/dev/acpica/common/dmtbinfo.c
+++ b/sys/contrib/dev/acpica/common/dmtbinfo.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/dmtbinfo1.c b/sys/contrib/dev/acpica/common/dmtbinfo1.c
index 49c0f6f2a31..40d6dfc27a7 100644
--- a/sys/contrib/dev/acpica/common/dmtbinfo1.c
+++ b/sys/contrib/dev/acpica/common/dmtbinfo1.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -1153,6 +1153,44 @@ ACPI_DMTABLE_INFO           AcpiDmTableInfoDrtm2[] =
 };
 
 
+/*******************************************************************************
+ *
+ * DTPR - DMA TXT Protection Ranges Table
+ *
+ ******************************************************************************/
+
+ACPI_DMTABLE_INFO           AcpiDmTableInfoDtpr[] =
+{
+    {ACPI_DMT_UINT32,   ACPI_DTPR_OFFSET (Flags),                  "Flags (reserved)", 0},
+    {ACPI_DMT_UINT32,   ACPI_DTPR_OFFSET (InsCnt),                 "Instance Count", 0},
+    ACPI_DMT_TERMINATOR
+};
+
+ACPI_DMTABLE_INFO           AcpiDmTableInfoDtprInstance[] =
+{
+    {ACPI_DMT_UINT32,   ACPI_DTPR_INST_OFFSET (Flags),             "Instance control flags (reserved)", 0},
+    {ACPI_DMT_UINT32,   ACPI_DTPR_INST_OFFSET (TprCnt),            "Number of TPR ranges in instance", 0},
+    ACPI_DMT_TERMINATOR
+};
+
+ACPI_DMTABLE_INFO           AcpiDmTableInfoDtprArr[] =
+{
+    {ACPI_DMT_UINT64,   ACPI_DTPR_ARR_OFFSET (Base),               "TPR Base Address", 0},
+    ACPI_DMT_TERMINATOR
+};
+
+ACPI_DMTABLE_INFO           AcpiDmTableInfoDtprSerializeReq0[] =
+{
+    {ACPI_DMT_UINT32, ACPI_DTPR_AUX_SR_OFFSET (SrlCnt),             "Number of serialization registers", 0},
+    ACPI_DMT_TERMINATOR
+};
+
+ACPI_DMTABLE_INFO           AcpiDmTableInfoDtprSerializeReq1[] =
+{
+    {ACPI_DMT_UINT64, ACPI_DTPR_SR_OFFSET (SrRegister),            "Serialize Request register", 0},
+    ACPI_DMT_TERMINATOR
+};
+
 /*******************************************************************************
  *
  * ECDT - Embedded Controller Boot Resources Table
diff --git a/sys/contrib/dev/acpica/common/dmtbinfo2.c b/sys/contrib/dev/acpica/common/dmtbinfo2.c
index d4ebc9f4907..fd6a11a7aa8 100644
--- a/sys/contrib/dev/acpica/common/dmtbinfo2.c
+++ b/sys/contrib/dev/acpica/common/dmtbinfo2.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -1243,7 +1243,7 @@ ACPI_DMTABLE_INFO           AcpiDmTableInfoMadt30[] =
 {
     {ACPI_DMT_UINT16,   ACPI_MADT30_OFFSET (Reserved),              "Reserved", 0},
     {ACPI_DMT_UINT32,   ACPI_MADT30_OFFSET (LinkedTranslatorId),    "Linked Its Id", 0},
-    {ACPI_DMT_UINT32,   ACPI_MADT30_OFFSET (TranslateFrameId),      "Its Transalte Id", 0},
+    {ACPI_DMT_UINT32,   ACPI_MADT30_OFFSET (TranslateFrameId),      "Its Translate Id", 0},
     {ACPI_DMT_UINT32,   ACPI_MADT30_OFFSET (Reserved2),             "Reserved", 0},
     {ACPI_DMT_UINT64,   ACPI_MADT30_OFFSET (BaseAddress),           "Its Translate Frame Physical Base Address", 0},
    ACPI_DMT_TERMINATOR
diff --git a/sys/contrib/dev/acpica/common/dmtbinfo3.c b/sys/contrib/dev/acpica/common/dmtbinfo3.c
index d7cdc90cd99..88728e27a69 100644
--- a/sys/contrib/dev/acpica/common/dmtbinfo3.c
+++ b/sys/contrib/dev/acpica/common/dmtbinfo3.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/common/getopt.c b/sys/contrib/dev/acpica/common/getopt.c
index 535e7a00bc8..3af472ffe13 100644
--- a/sys/contrib/dev/acpica/common/getopt.c
+++ b/sys/contrib/dev/acpica/common/getopt.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslallocate.c b/sys/contrib/dev/acpica/compiler/aslallocate.c
index 57e538b534e..4d0aef2b414 100644
--- a/sys/contrib/dev/acpica/compiler/aslallocate.c
+++ b/sys/contrib/dev/acpica/compiler/aslallocate.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslanalyze.c b/sys/contrib/dev/acpica/compiler/aslanalyze.c
index 625611a630d..015119ba4e7 100644
--- a/sys/contrib/dev/acpica/compiler/aslanalyze.c
+++ b/sys/contrib/dev/acpica/compiler/aslanalyze.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslascii.c b/sys/contrib/dev/acpica/compiler/aslascii.c
index 1de3d763c76..700ad30045f 100644
--- a/sys/contrib/dev/acpica/compiler/aslascii.c
+++ b/sys/contrib/dev/acpica/compiler/aslascii.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslbtypes.c b/sys/contrib/dev/acpica/compiler/aslbtypes.c
index 539cd7977b4..a11b1f465d9 100644
--- a/sys/contrib/dev/acpica/compiler/aslbtypes.c
+++ b/sys/contrib/dev/acpica/compiler/aslbtypes.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslcache.c b/sys/contrib/dev/acpica/compiler/aslcache.c
index 9f917ff3294..93309f90093 100644
--- a/sys/contrib/dev/acpica/compiler/aslcache.c
+++ b/sys/contrib/dev/acpica/compiler/aslcache.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslcodegen.c b/sys/contrib/dev/acpica/compiler/aslcodegen.c
index 684c59f802e..f329f3738f8 100644
--- a/sys/contrib/dev/acpica/compiler/aslcodegen.c
+++ b/sys/contrib/dev/acpica/compiler/aslcodegen.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -586,14 +586,16 @@ CgWriteTableHeader (
     /* OEMID */
 
     Child = Child->Asl.Next;
-    memcpy (AslGbl_TableHeader.OemId, Child->Asl.Value.String,
-        strlen (Child->Asl.Value.String));
+    /* Bound copy to header field size to avoid overflow on malformed input */
+    strncpy (AslGbl_TableHeader.OemId, Child->Asl.Value.String,
+        ACPI_OEM_ID_SIZE);
 
     /* OEM TableID */
 
     Child = Child->Asl.Next;
-    memcpy (AslGbl_TableHeader.OemTableId, Child->Asl.Value.String,
-        strlen (Child->Asl.Value.String));
+    /* Bound copy to header field size to avoid overflow on malformed input */
+    strncpy (AslGbl_TableHeader.OemTableId, Child->Asl.Value.String,
+        ACPI_OEM_TABLE_ID_SIZE);
 
     /* OEM Revision */
 
diff --git a/sys/contrib/dev/acpica/compiler/aslcompile.c b/sys/contrib/dev/acpica/compiler/aslcompile.c
index 6e8ce6aae2c..696da41ba46 100644
--- a/sys/contrib/dev/acpica/compiler/aslcompile.c
+++ b/sys/contrib/dev/acpica/compiler/aslcompile.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslcompiler.h b/sys/contrib/dev/acpica/compiler/aslcompiler.h
index d131b949252..d877357d434 100644
--- a/sys/contrib/dev/acpica/compiler/aslcompiler.h
+++ b/sys/contrib/dev/acpica/compiler/aslcompiler.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslcompiler.l b/sys/contrib/dev/acpica/compiler/aslcompiler.l
index 5e94f962601..bde40db4c00 100644
--- a/sys/contrib/dev/acpica/compiler/aslcompiler.l
+++ b/sys/contrib/dev/acpica/compiler/aslcompiler.l
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslcstyle.y b/sys/contrib/dev/acpica/compiler/aslcstyle.y
index 59a1abea1be..6384a1e932d 100644
--- a/sys/contrib/dev/acpica/compiler/aslcstyle.y
+++ b/sys/contrib/dev/acpica/compiler/aslcstyle.y
@@ -9,7 +9,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asldebug.c b/sys/contrib/dev/acpica/compiler/asldebug.c
index 18b68dea6de..bb5e0bbdb04 100644
--- a/sys/contrib/dev/acpica/compiler/asldebug.c
+++ b/sys/contrib/dev/acpica/compiler/asldebug.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asldefine.h b/sys/contrib/dev/acpica/compiler/asldefine.h
index 89b6b8a6995..5f694efe40d 100644
--- a/sys/contrib/dev/acpica/compiler/asldefine.h
+++ b/sys/contrib/dev/acpica/compiler/asldefine.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslerror.c b/sys/contrib/dev/acpica/compiler/aslerror.c
index ff01bef7b4b..6612af39fa9 100644
--- a/sys/contrib/dev/acpica/compiler/aslerror.c
+++ b/sys/contrib/dev/acpica/compiler/aslerror.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslexternal.c b/sys/contrib/dev/acpica/compiler/aslexternal.c
index e2f082593c5..83ba04f573f 100644
--- a/sys/contrib/dev/acpica/compiler/aslexternal.c
+++ b/sys/contrib/dev/acpica/compiler/aslexternal.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -170,6 +170,10 @@ static void
 ExMoveExternals (
     ACPI_PARSE_OBJECT       *DefinitionBlockOp);
 
+static void
+ExRemoveOpFromTree (
+    ACPI_PARSE_OBJECT       *Op);
+
 
 /*******************************************************************************
  *
@@ -194,9 +198,14 @@ ExDoExternal (
     ACPI_PARSE_OBJECT       *ArgCountOp;
     ACPI_PARSE_OBJECT       *TypeOp;
     ACPI_PARSE_OBJECT       *ExternTypeOp = Op->Asl.Child->Asl.Next;
+    ACPI_PARSE_OBJECT       *Existing;
+    ACPI_PARSE_OBJECT       *NameOp = Op->Asl.Child;
+    ACPI_PARSE_OBJECT       *ExistingNameOp;
     UINT32                  ExternType;
     UINT8                   ParamCount = ASL_EXTERNAL_METHOD_UNKNOWN_PARAMS;
     UINT32                  ParamTypes[ACPI_METHOD_NUM_ARGS];
+    char                    *NewPath = NULL;
+    char                    *ExistingPath;
 
 
     ExternType = AnMapObjTypeToBtype (ExternTypeOp);
@@ -250,6 +259,53 @@ ExDoExternal (
     ArgCountOp->Asl.Value.Integer = ParamCount;
     UtSetParseOpName (ArgCountOp);
 
+    /*
+     * Deduplicate identical External() declarations. The disassembler
+     * already collapses duplicates; mirror that behavior in the compiler
+     * so duplicate externals do not bloat emitted AML.
+     */
+
+    NewPath = NameOp->Asl.Namepath;
+    if (!NewPath && NameOp->Asl.Value.String)
+    {
+        (void) UtInternalizeName (NameOp->Asl.Value.String, &NewPath);
+        NameOp->Asl.Namepath = NewPath;
+    }
+
+    Existing = AslGbl_ExternalsListHead;
+    while (Existing && NewPath)
+    {
+        ExistingNameOp = Existing->Asl.Child->Asl.Child;
+        ExistingPath = ExistingNameOp->Asl.Namepath;
+        if (!ExistingPath && ExistingNameOp->Asl.Value.String)
+        {
+            (void) UtInternalizeName (ExistingNameOp->Asl.Value.String,
+                &ExistingPath);
+            ExistingNameOp->Asl.Namepath = ExistingPath;
+        }
+
+        if (ExistingPath && !strcmp (NewPath, ExistingPath))
+        {
+            ACPI_PARSE_OBJECT *ExistingArgCount;
+
+            /* Update arg count if this instance is more specific */
+
+            ExistingArgCount = Existing->Asl.Child->Asl.Child->Asl.Next->Asl.Next;
+            if ((ExternType == ACPI_BTYPE_METHOD) &&
+                (ParamCount < ExistingArgCount->Asl.Value.Integer))
+            {
+                ExistingArgCount->Asl.Value.Integer = ParamCount;
+            }
+
+            /* Remove duplicate External node from the parse tree */
+
+            ExRemoveOpFromTree (Op);
+            return;
+        }
+
+        Existing = Existing->Asl.Next;
+    }
+
     /* Create new list node of arbitrary type */
 
     ListOp = TrAllocateOp (PARSEOP_DEFAULT_ARG);
@@ -280,6 +336,53 @@ ExDoExternal (
 }
 
 
+/*******************************************************************************
+ *
+ * FUNCTION:    ExRemoveOpFromTree
+ *
+ * PARAMETERS:  Op              - Parse op to remove from the tree
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Unlink a parse op from its parent sibling list. Used to drop
+ *              duplicate External() declarations before AML emission.
+ *
+ ******************************************************************************/
+
+static void
+ExRemoveOpFromTree (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *Parent;
+    ACPI_PARSE_OBJECT       *Child;
+
+
+    if (!Op || !Op->Asl.Parent)
+    {
+        return;
+    }
+
+    Parent = Op->Asl.Parent;
+    Child = Parent->Asl.Child;
+
+    if (Child == Op)
+    {
+        Parent->Asl.Child = Op->Asl.Next;
+        return;
+    }
+
+    while (Child && Child->Asl.Next != Op)
+    {
+        Child = Child->Asl.Next;
+    }
+
+    if (Child)
+    {
+        Child->Asl.Next = Op->Asl.Next;
+    }
+}
+
+
 /*******************************************************************************
  *
  * FUNCTION:    ExInsertArgCount
diff --git a/sys/contrib/dev/acpica/compiler/aslfileio.c b/sys/contrib/dev/acpica/compiler/aslfileio.c
index 4bf18404b1f..e3dfaa6ebf6 100644
--- a/sys/contrib/dev/acpica/compiler/aslfileio.c
+++ b/sys/contrib/dev/acpica/compiler/aslfileio.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslfiles.c b/sys/contrib/dev/acpica/compiler/aslfiles.c
index 0cad8eff47e..4528d17764f 100644
--- a/sys/contrib/dev/acpica/compiler/aslfiles.c
+++ b/sys/contrib/dev/acpica/compiler/aslfiles.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslfold.c b/sys/contrib/dev/acpica/compiler/aslfold.c
index 89107297588..ecf4c683b78 100644
--- a/sys/contrib/dev/acpica/compiler/aslfold.c
+++ b/sys/contrib/dev/acpica/compiler/aslfold.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslglobal.h b/sys/contrib/dev/acpica/compiler/aslglobal.h
index c79758919f6..0f2d5931cec 100644
--- a/sys/contrib/dev/acpica/compiler/aslglobal.h
+++ b/sys/contrib/dev/acpica/compiler/aslglobal.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -252,6 +252,7 @@ extern FILE                         *AslCompilerin;
 extern int                          DtParserdebug;
 extern int                          PrParserdebug;
 extern const ASL_MAPPING_ENTRY      AslKeywordMapping[];
+extern const UINT32                 AslKeywordMappingCount;
 extern char                         *AslCompilertext;
 extern char                         *DtCompilerParsertext;
 
diff --git a/sys/contrib/dev/acpica/compiler/aslhelp.c b/sys/contrib/dev/acpica/compiler/aslhelp.c
index fcec07e67e7..0f6421ceba9 100644
--- a/sys/contrib/dev/acpica/compiler/aslhelp.c
+++ b/sys/contrib/dev/acpica/compiler/aslhelp.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslhelpers.y b/sys/contrib/dev/acpica/compiler/aslhelpers.y
index cb13d1ebcfe..728ea9bd810 100644
--- a/sys/contrib/dev/acpica/compiler/aslhelpers.y
+++ b/sys/contrib/dev/acpica/compiler/aslhelpers.y
@@ -9,7 +9,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslhex.c b/sys/contrib/dev/acpica/compiler/aslhex.c
index 927e50f24c1..e0d8831e2a4 100644
--- a/sys/contrib/dev/acpica/compiler/aslhex.c
+++ b/sys/contrib/dev/acpica/compiler/aslhex.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslkeywords.y b/sys/contrib/dev/acpica/compiler/aslkeywords.y
index 7cb670e61bf..bdd42231cf5 100644
--- a/sys/contrib/dev/acpica/compiler/aslkeywords.y
+++ b/sys/contrib/dev/acpica/compiler/aslkeywords.y
@@ -9,7 +9,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asllength.c b/sys/contrib/dev/acpica/compiler/asllength.c
index 136ca582300..e2acc91755b 100644
--- a/sys/contrib/dev/acpica/compiler/asllength.c
+++ b/sys/contrib/dev/acpica/compiler/asllength.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asllisting.c b/sys/contrib/dev/acpica/compiler/asllisting.c
index 2a6341bb59e..3c76672f0be 100644
--- a/sys/contrib/dev/acpica/compiler/asllisting.c
+++ b/sys/contrib/dev/acpica/compiler/asllisting.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asllistsup.c b/sys/contrib/dev/acpica/compiler/asllistsup.c
index 3458e28062d..f173d80de95 100644
--- a/sys/contrib/dev/acpica/compiler/asllistsup.c
+++ b/sys/contrib/dev/acpica/compiler/asllistsup.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslload.c b/sys/contrib/dev/acpica/compiler/aslload.c
index c88fb13aba7..8aa3dce5b65 100644
--- a/sys/contrib/dev/acpica/compiler/aslload.c
+++ b/sys/contrib/dev/acpica/compiler/aslload.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -1406,6 +1406,8 @@ LdNamespace2Begin (
 
         /* Save the target node within the alias node as well as type information */
 
+        /* Mark as alias node and store target namespace node */
+        Node->Flags |= ANOBJ_IS_ALIAS;
         Node->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
         Node->Type = TargetNode->Type;
         if (Node->Type == ACPI_TYPE_METHOD)
diff --git a/sys/contrib/dev/acpica/compiler/asllookup.c b/sys/contrib/dev/acpica/compiler/asllookup.c
index 3dfdb1fce21..c5885ea8578 100644
--- a/sys/contrib/dev/acpica/compiler/asllookup.c
+++ b/sys/contrib/dev/acpica/compiler/asllookup.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslmain.c b/sys/contrib/dev/acpica/compiler/aslmain.c
index ff22dec7336..21124cd1cab 100644
--- a/sys/contrib/dev/acpica/compiler/aslmain.c
+++ b/sys/contrib/dev/acpica/compiler/aslmain.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslmap.c b/sys/contrib/dev/acpica/compiler/aslmap.c
index 4711b884a57..08c1d5bdd36 100644
--- a/sys/contrib/dev/acpica/compiler/aslmap.c
+++ b/sys/contrib/dev/acpica/compiler/aslmap.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -611,3 +611,5 @@ const ASL_MAPPING_ENTRY     AslKeywordMapping [] =
 /*! [End] no source code translation !*/
 
 };
+
+const UINT32     AslKeywordMappingCount = ACPI_ARRAY_LENGTH (AslKeywordMapping);
diff --git a/sys/contrib/dev/acpica/compiler/aslmapenter.c b/sys/contrib/dev/acpica/compiler/aslmapenter.c
index 81b57cb3f13..032d953c596 100644
--- a/sys/contrib/dev/acpica/compiler/aslmapenter.c
+++ b/sys/contrib/dev/acpica/compiler/aslmapenter.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslmapoutput.c b/sys/contrib/dev/acpica/compiler/aslmapoutput.c
index a009f64bc98..86299dd5b78 100644
--- a/sys/contrib/dev/acpica/compiler/aslmapoutput.c
+++ b/sys/contrib/dev/acpica/compiler/aslmapoutput.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslmaputils.c b/sys/contrib/dev/acpica/compiler/aslmaputils.c
index f978e6a940b..bafdca0322c 100644
--- a/sys/contrib/dev/acpica/compiler/aslmaputils.c
+++ b/sys/contrib/dev/acpica/compiler/aslmaputils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslmessages.c b/sys/contrib/dev/acpica/compiler/aslmessages.c
index 1e363236a14..f7c121ca990 100644
--- a/sys/contrib/dev/acpica/compiler/aslmessages.c
+++ b/sys/contrib/dev/acpica/compiler/aslmessages.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -412,7 +412,8 @@ const char                      *AslTableCompilerMsgs [] =
 /*    ASL_MSG_UNKNOWN_FORMAT */             "Unknown format value",
 /*    ASL_MSG_RESERVED_VALUE */             "Value for field is reserved or unknown",
 /*    ASL_MSG_TWO_ZERO_VALUES */            "32-bit DSDT Address and 64-bit X_DSDT Address cannot both be zero",
-/*    ASL_MSG_BAD_PARSE_TREE */             "Parse tree appears to be ill-defined"
+/*    ASL_MSG_BAD_PARSE_TREE */             "Parse tree appears to be ill-defined",
+/*    ASL_MSG_MALFORMED_HEADER */           "Malformed ACPI table header detected"
 };
 
 /* Preprocessor */
diff --git a/sys/contrib/dev/acpica/compiler/aslmessages.h b/sys/contrib/dev/acpica/compiler/aslmessages.h
index dc0bbe10bd0..f8ef09bbe9d 100644
--- a/sys/contrib/dev/acpica/compiler/aslmessages.h
+++ b/sys/contrib/dev/acpica/compiler/aslmessages.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -414,6 +414,7 @@ typedef enum
     ASL_MSG_RESERVED_VALUE,
     ASL_MSG_TWO_ZERO_VALUES,
     ASL_MSG_BAD_PARSE_TREE,
+    ASL_MSG_MALFORMED_HEADER,
 
     /* These messages are used by the Preprocessor only */
 
diff --git a/sys/contrib/dev/acpica/compiler/aslmethod.c b/sys/contrib/dev/acpica/compiler/aslmethod.c
index 75096d38999..6844890ce71 100644
--- a/sys/contrib/dev/acpica/compiler/aslmethod.c
+++ b/sys/contrib/dev/acpica/compiler/aslmethod.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslnamesp.c b/sys/contrib/dev/acpica/compiler/aslnamesp.c
index 9388d7428db..e15421ec6df 100644
--- a/sys/contrib/dev/acpica/compiler/aslnamesp.c
+++ b/sys/contrib/dev/acpica/compiler/aslnamesp.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asloffset.c b/sys/contrib/dev/acpica/compiler/asloffset.c
index d60c4c4ec36..097bedd495f 100644
--- a/sys/contrib/dev/acpica/compiler/asloffset.c
+++ b/sys/contrib/dev/acpica/compiler/asloffset.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslopcodes.c b/sys/contrib/dev/acpica/compiler/aslopcodes.c
index 8bef46b0d7a..35f661331a9 100644
--- a/sys/contrib/dev/acpica/compiler/aslopcodes.c
+++ b/sys/contrib/dev/acpica/compiler/aslopcodes.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -863,6 +863,14 @@ OpcGenerateAmlOpcode (
 
     Index = (UINT16) (Op->Asl.ParseOpcode - ASL_PARSE_OPCODE_BASE);
 
+    if ((Op->Asl.ParseOpcode < ASL_PARSE_OPCODE_BASE) ||
+        (Index >= AslKeywordMappingCount))
+    {
+        AslError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL, Op,
+            "Invalid parse opcode in OpcGenerateAmlOpcode");
+        return;
+    }
+
     Op->Asl.AmlOpcode     = AslKeywordMapping[Index].AmlOpcode;
     Op->Asl.AcpiBtype     = AslKeywordMapping[Index].AcpiBtype;
     Op->Asl.CompileFlags |= AslKeywordMapping[Index].Flags;
diff --git a/sys/contrib/dev/acpica/compiler/asloperands.c b/sys/contrib/dev/acpica/compiler/asloperands.c
index 1978b38b1cf..6e77ae165f8 100644
--- a/sys/contrib/dev/acpica/compiler/asloperands.c
+++ b/sys/contrib/dev/acpica/compiler/asloperands.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -851,7 +851,9 @@ OpnDoPackage (
 {
     ACPI_PARSE_OBJECT       *InitializerOp;
     ACPI_PARSE_OBJECT       *PackageLengthOp;
+    UINT64                  DeclaredLength;
     UINT32                  PackageLength = 0;
+    UINT32                  MaxEncodedLength = 0x0FFFFFFF; /* Max AML package length encoding (28 bits) */
 
 
     /* Opcode and package length first, followed by the initializer list */
@@ -875,9 +877,21 @@ OpnDoPackage (
     /* If package length is a constant, compare to the initializer list */
 
     if ((PackageLengthOp->Asl.ParseOpcode == PARSEOP_INTEGER)      ||
-        (PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST))
+        (PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST)   ||
+        (PackageLengthOp->Asl.ParseOpcode == PARSEOP_PACKAGE_LENGTH))
     {
-        if (PackageLengthOp->Asl.Value.Integer > PackageLength)
+        DeclaredLength = PackageLengthOp->Asl.Value.Integer;
+
+        /* Guard against values that cannot be encoded in AML package length format */
+
+        if (DeclaredLength > MaxEncodedLength)
+        {
+            AslError (ASL_ERROR, ASL_MSG_ENCODING_LENGTH, PackageLengthOp, NULL);
+            DeclaredLength = MaxEncodedLength;
+            PackageLengthOp->Asl.Value.Integer = DeclaredLength;
+        }
+
+        if (DeclaredLength > PackageLength)
         {
             /*
              * Allow package length to be longer than the initializer
@@ -891,9 +905,9 @@ OpnDoPackage (
                     PackageLengthOp, NULL);
             }
 
-            PackageLength = (UINT32) PackageLengthOp->Asl.Value.Integer;
+            PackageLength = (UINT32) DeclaredLength;
         }
-        else if (PackageLengthOp->Asl.Value.Integer < PackageLength)
+        else if (DeclaredLength < PackageLength)
         {
             /*
              * The package length is smaller than the length of the
@@ -999,7 +1013,13 @@ OpnDoLoadTable (
     /* Fourth child is the RootPath string */
 
     Next = Next->Asl.Next;
-    if (Next->Asl.ParseOpcode == PARSEOP_ZERO)
+    if ((Next->Asl.ParseOpcode == PARSEOP_ZERO)           ||
+        ((Next->Asl.Value.Integer == 0) &&
+            ((Next->Asl.ParseOpcode == PARSEOP_INTEGER)   ||
+             (Next->Asl.ParseOpcode == PARSEOP_BYTECONST) ||
+             (Next->Asl.ParseOpcode == PARSEOP_WORDCONST) ||
+             (Next->Asl.ParseOpcode == PARSEOP_DWORDCONST)||
+             (Next->Asl.ParseOpcode == PARSEOP_QWORDCONST))))
     {
         Next->Asl.ParseOpcode = PARSEOP_STRING_LITERAL;
         Next->Asl.Value.String = "\\";
diff --git a/sys/contrib/dev/acpica/compiler/aslopt.c b/sys/contrib/dev/acpica/compiler/aslopt.c
index 02d46458d6a..afd11e06c2a 100644
--- a/sys/contrib/dev/acpica/compiler/aslopt.c
+++ b/sys/contrib/dev/acpica/compiler/aslopt.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asloptions.c b/sys/contrib/dev/acpica/compiler/asloptions.c
index a46ce96f5db..7c5cb69cf70 100644
--- a/sys/contrib/dev/acpica/compiler/asloptions.c
+++ b/sys/contrib/dev/acpica/compiler/asloptions.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslparseop.c b/sys/contrib/dev/acpica/compiler/aslparseop.c
index 65e5b5b3ea5..c9ffb1d8d85 100644
--- a/sys/contrib/dev/acpica/compiler/aslparseop.c
+++ b/sys/contrib/dev/acpica/compiler/aslparseop.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslparser.y b/sys/contrib/dev/acpica/compiler/aslparser.y
index 65a75af9763..b29eb2ad037 100644
--- a/sys/contrib/dev/acpica/compiler/aslparser.y
+++ b/sys/contrib/dev/acpica/compiler/aslparser.y
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslpld.c b/sys/contrib/dev/acpica/compiler/aslpld.c
index b1d9a05a7bd..cfd725a7685 100644
--- a/sys/contrib/dev/acpica/compiler/aslpld.c
+++ b/sys/contrib/dev/acpica/compiler/aslpld.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslpredef.c b/sys/contrib/dev/acpica/compiler/aslpredef.c
index 4125c51c689..5e1eb160f66 100644
--- a/sys/contrib/dev/acpica/compiler/aslpredef.c
+++ b/sys/contrib/dev/acpica/compiler/aslpredef.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslprepkg.c b/sys/contrib/dev/acpica/compiler/aslprepkg.c
index 9d0e861a0ff..116aa04976e 100644
--- a/sys/contrib/dev/acpica/compiler/aslprepkg.c
+++ b/sys/contrib/dev/acpica/compiler/aslprepkg.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslprimaries.y b/sys/contrib/dev/acpica/compiler/aslprimaries.y
index 608009d30da..ef5aa3a7a8b 100644
--- a/sys/contrib/dev/acpica/compiler/aslprimaries.y
+++ b/sys/contrib/dev/acpica/compiler/aslprimaries.y
@@ -11,7 +11,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslprintf.c b/sys/contrib/dev/acpica/compiler/aslprintf.c
index 819a498f2b7..56faa95c6ba 100644
--- a/sys/contrib/dev/acpica/compiler/aslprintf.c
+++ b/sys/contrib/dev/acpica/compiler/aslprintf.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslprune.c b/sys/contrib/dev/acpica/compiler/aslprune.c
index 4fc3c063f1d..a8b96f299b6 100644
--- a/sys/contrib/dev/acpica/compiler/aslprune.c
+++ b/sys/contrib/dev/acpica/compiler/aslprune.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslresource.c b/sys/contrib/dev/acpica/compiler/aslresource.c
index 8250e84fd78..6ac8c03089a 100644
--- a/sys/contrib/dev/acpica/compiler/aslresource.c
+++ b/sys/contrib/dev/acpica/compiler/aslresource.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslresources.y b/sys/contrib/dev/acpica/compiler/aslresources.y
index fd8a33d3c0d..617a366411f 100644
--- a/sys/contrib/dev/acpica/compiler/aslresources.y
+++ b/sys/contrib/dev/acpica/compiler/aslresources.y
@@ -11,7 +11,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype1.c b/sys/contrib/dev/acpica/compiler/aslrestype1.c
index 3f873da0e70..c1f5a6885a4 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype1.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype1.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype1i.c b/sys/contrib/dev/acpica/compiler/aslrestype1i.c
index 02f4958d6d5..1ae5e3b0eef 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype1i.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype1i.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype2.c b/sys/contrib/dev/acpica/compiler/aslrestype2.c
index 6fb61337069..7296e257385 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype2.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype2.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype2d.c b/sys/contrib/dev/acpica/compiler/aslrestype2d.c
index 3a7ca9189af..f392eb6eed7 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype2d.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype2d.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype2e.c b/sys/contrib/dev/acpica/compiler/aslrestype2e.c
index 4e6293617b9..d555fabb411 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype2e.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype2e.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype2q.c b/sys/contrib/dev/acpica/compiler/aslrestype2q.c
index 6ebe149a3c1..489400417f8 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype2q.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype2q.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype2s.c b/sys/contrib/dev/acpica/compiler/aslrestype2s.c
index f47402d4e02..8160114980e 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype2s.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype2s.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrestype2w.c b/sys/contrib/dev/acpica/compiler/aslrestype2w.c
index cc8a3180497..97a9ad82b5e 100644
--- a/sys/contrib/dev/acpica/compiler/aslrestype2w.c
+++ b/sys/contrib/dev/acpica/compiler/aslrestype2w.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslrules.y b/sys/contrib/dev/acpica/compiler/aslrules.y
index c96d4cc75db..00dede69016 100644
--- a/sys/contrib/dev/acpica/compiler/aslrules.y
+++ b/sys/contrib/dev/acpica/compiler/aslrules.y
@@ -11,7 +11,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslstartup.c b/sys/contrib/dev/acpica/compiler/aslstartup.c
index 628a5c1ada2..0da5eaa4d09 100644
--- a/sys/contrib/dev/acpica/compiler/aslstartup.c
+++ b/sys/contrib/dev/acpica/compiler/aslstartup.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslstubs.c b/sys/contrib/dev/acpica/compiler/aslstubs.c
index 50bda4b83fe..f872b0f5f2e 100644
--- a/sys/contrib/dev/acpica/compiler/aslstubs.c
+++ b/sys/contrib/dev/acpica/compiler/aslstubs.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslsupport.l b/sys/contrib/dev/acpica/compiler/aslsupport.l
index 74ac78d8c4e..d9e609faee4 100644
--- a/sys/contrib/dev/acpica/compiler/aslsupport.l
+++ b/sys/contrib/dev/acpica/compiler/aslsupport.l
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslsupport.y b/sys/contrib/dev/acpica/compiler/aslsupport.y
index 3bd09a55e70..7595c1065df 100644
--- a/sys/contrib/dev/acpica/compiler/aslsupport.y
+++ b/sys/contrib/dev/acpica/compiler/aslsupport.y
@@ -9,7 +9,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asltokens.y b/sys/contrib/dev/acpica/compiler/asltokens.y
index 50d6031e5ed..0497ba9535e 100644
--- a/sys/contrib/dev/acpica/compiler/asltokens.y
+++ b/sys/contrib/dev/acpica/compiler/asltokens.y
@@ -9,7 +9,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asltransform.c b/sys/contrib/dev/acpica/compiler/asltransform.c
index c58f771354f..f239ff0b11f 100644
--- a/sys/contrib/dev/acpica/compiler/asltransform.c
+++ b/sys/contrib/dev/acpica/compiler/asltransform.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asltree.c b/sys/contrib/dev/acpica/compiler/asltree.c
index 9237176c94b..d8021dbbb76 100644
--- a/sys/contrib/dev/acpica/compiler/asltree.c
+++ b/sys/contrib/dev/acpica/compiler/asltree.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asltypes.h b/sys/contrib/dev/acpica/compiler/asltypes.h
index 50234d71f0a..36052302e9b 100644
--- a/sys/contrib/dev/acpica/compiler/asltypes.h
+++ b/sys/contrib/dev/acpica/compiler/asltypes.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asltypes.y b/sys/contrib/dev/acpica/compiler/asltypes.y
index 2c266955958..3bfbae4f7b0 100644
--- a/sys/contrib/dev/acpica/compiler/asltypes.y
+++ b/sys/contrib/dev/acpica/compiler/asltypes.y
@@ -9,7 +9,7 @@ NoEcho('
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslutils.c b/sys/contrib/dev/acpica/compiler/aslutils.c
index 267ad8b77e1..69d0a2310a8 100644
--- a/sys/contrib/dev/acpica/compiler/aslutils.c
+++ b/sys/contrib/dev/acpica/compiler/aslutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/asluuid.c b/sys/contrib/dev/acpica/compiler/asluuid.c
index 712a06fda95..a7e08380c67 100644
--- a/sys/contrib/dev/acpica/compiler/asluuid.c
+++ b/sys/contrib/dev/acpica/compiler/asluuid.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/aslwalks.c b/sys/contrib/dev/acpica/compiler/aslwalks.c
index db2c9daa455..c2817760382 100644
--- a/sys/contrib/dev/acpica/compiler/aslwalks.c
+++ b/sys/contrib/dev/acpica/compiler/aslwalks.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -197,6 +197,7 @@ AnMethodTypingWalkEnd (
     void                    *Context)
 {
     UINT32                  ThisOpBtype;
+    ACPI_PARSE_OBJECT       *TargetMethodOp;
 
 
     switch (Op->Asl.ParseOpcode)
@@ -227,12 +228,24 @@ AnMethodTypingWalkEnd (
                 if (Op->Asl.Child->Asl.Node &&
                     (Op->Asl.ParentMethod != Op->Asl.Child->Asl.Node->Op))
                 {
+                    TargetMethodOp = Op->Asl.Child->Asl.Node->Op;
+
+                    /* Break mutual-recursion loops during typing */
+                    if (TargetMethodOp->Asl.CompileFlags & OP_VISITED)
+                    {
+                        break;
+                    }
+
+                    TargetMethodOp->Asl.CompileFlags |= OP_VISITED;
+
                     /* We must type the method here */
 
-                    TrWalkParseTree (Op->Asl.Child->Asl.Node->Op,
+                    TrWalkParseTree (TargetMethodOp,
                         ASL_WALK_VISIT_UPWARD, NULL,
                         AnMethodTypingWalkEnd, NULL);
 
+                    TargetMethodOp->Asl.CompileFlags &= ~OP_VISITED;
+
                     ThisOpBtype = AnGetBtype (Op->Asl.Child);
                 }
             }
diff --git a/sys/contrib/dev/acpica/compiler/aslxref.c b/sys/contrib/dev/acpica/compiler/aslxref.c
index eb61b1d461c..0f8c62262a0 100644
--- a/sys/contrib/dev/acpica/compiler/aslxref.c
+++ b/sys/contrib/dev/acpica/compiler/aslxref.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -558,11 +558,23 @@ XfNamespaceLocateBegin (
 
         Node = NextOp->Asl.Node;
 
+        /* Malformed tree: parent method has no namespace node */
+        if (!Node)
+        {
+            return_ACPI_STATUS (AE_OK);
+        }
+
         /* Get Arg # */
 
         RegisterNumber = Op->Asl.AmlOpcode - AML_ARG0; /* 0x68 through 0x6F */
         MethodArgs = Node->MethodArgs;
 
+        /* Gracefully handle malformed trees where method args were not set up */
+        if (!MethodArgs)
+        {
+            return_ACPI_STATUS (AE_OK);
+        }
+
         /* Mark this Arg as referenced */
 
         MethodArgs[RegisterNumber].Flags |= ASL_ARG_REFERENCED;
diff --git a/sys/contrib/dev/acpica/compiler/aslxrefout.c b/sys/contrib/dev/acpica/compiler/aslxrefout.c
index 67e26b3e69d..86c66868b85 100644
--- a/sys/contrib/dev/acpica/compiler/aslxrefout.c
+++ b/sys/contrib/dev/acpica/compiler/aslxrefout.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/cvcompiler.c b/sys/contrib/dev/acpica/compiler/cvcompiler.c
index e42dfa8066a..de8c523e564 100644
--- a/sys/contrib/dev/acpica/compiler/cvcompiler.c
+++ b/sys/contrib/dev/acpica/compiler/cvcompiler.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/cvdisasm.c b/sys/contrib/dev/acpica/compiler/cvdisasm.c
index ebc93a0bd19..f4eac286199 100644
--- a/sys/contrib/dev/acpica/compiler/cvdisasm.c
+++ b/sys/contrib/dev/acpica/compiler/cvdisasm.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/cvparser.c b/sys/contrib/dev/acpica/compiler/cvparser.c
index 724daa0dea6..db5595e47d3 100644
--- a/sys/contrib/dev/acpica/compiler/cvparser.c
+++ b/sys/contrib/dev/acpica/compiler/cvparser.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dtcompile.c b/sys/contrib/dev/acpica/compiler/dtcompile.c
index 873baf397e4..e3447e28e0f 100644
--- a/sys/contrib/dev/acpica/compiler/dtcompile.c
+++ b/sys/contrib/dev/acpica/compiler/dtcompile.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -363,18 +363,42 @@ DtInsertCompilerIds (
         return;
     }
 
-    /* Walk to the Compiler fields at the end of the header */
+    /* Walk to the Compiler fields at the end of the header, with safety checks */
+
+    if (!FieldList)
+    {
+        DtError (ASL_WARNING, ASL_MSG_MALFORMED_HEADER, NULL, NULL);
+        return;
+    }
 
     Next = FieldList;
     for (i = 0; i < 7; i++)
     {
+        if (!Next || !Next->Next)
+        {
+            /* Malformed/short header: cannot insert compiler IDs */
+            DtError (ASL_WARNING, ASL_MSG_MALFORMED_HEADER, FieldList, NULL);
+            return;
+        }
         Next = Next->Next;
     }
 
+    /* Ensure both Creator ID and Revision fields exist */
+    if (!Next || !Next->Next)
+    {
+        DtError (ASL_WARNING, ASL_MSG_MALFORMED_HEADER, FieldList, NULL);
+        return;
+    }
+
     Next->Value = ASL_CREATOR_ID;
     Next->Flags = DT_FIELD_NOT_ALLOCATED;
 
     Next = Next->Next;
+    if (!Next)
+    {
+        DtError (ASL_WARNING, ASL_MSG_MALFORMED_HEADER, FieldList, NULL);
+        return;
+    }
     Next->Value = VersionString;
     Next->Flags = DT_FIELD_NOT_ALLOCATED;
 }
diff --git a/sys/contrib/dev/acpica/compiler/dtcompiler.h b/sys/contrib/dev/acpica/compiler/dtcompiler.h
index 505bb6b40be..6a47bd7b169 100644
--- a/sys/contrib/dev/acpica/compiler/dtcompiler.h
+++ b/sys/contrib/dev/acpica/compiler/dtcompiler.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -609,6 +609,10 @@ ACPI_STATUS
 DtCompileDrtm (
     void                    **PFieldList);
 
+ACPI_STATUS
+DtCompileDtpr (
+    void                    **PFieldList);
+
 ACPI_STATUS
 DtCompileEinj (
     void                    **PFieldList);
@@ -819,6 +823,7 @@ extern const unsigned char  TemplateDbg2[];
 extern const unsigned char  TemplateDbgp[];
 extern const unsigned char  TemplateDmar[];
 extern const unsigned char  TemplateDrtm[];
+extern const unsigned char  TemplateDtpr[];
 extern const unsigned char  TemplateEcdt[];
 extern const unsigned char  TemplateEinj[];
 extern const unsigned char  TemplateErdt[];
diff --git a/sys/contrib/dev/acpica/compiler/dtcompilerparser.l b/sys/contrib/dev/acpica/compiler/dtcompilerparser.l
index 322ee225a60..492468867ac 100644
--- a/sys/contrib/dev/acpica/compiler/dtcompilerparser.l
+++ b/sys/contrib/dev/acpica/compiler/dtcompilerparser.l
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dtcompilerparser.y b/sys/contrib/dev/acpica/compiler/dtcompilerparser.y
index f160434e095..4dab55c0b78 100644
--- a/sys/contrib/dev/acpica/compiler/dtcompilerparser.y
+++ b/sys/contrib/dev/acpica/compiler/dtcompilerparser.y
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dtexpress.c b/sys/contrib/dev/acpica/compiler/dtexpress.c
index 65f10aac9f0..0a503febb22 100644
--- a/sys/contrib/dev/acpica/compiler/dtexpress.c
+++ b/sys/contrib/dev/acpica/compiler/dtexpress.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dtfield.c b/sys/contrib/dev/acpica/compiler/dtfield.c
index ded7315aaa3..106db4d04e5 100644
--- a/sys/contrib/dev/acpica/compiler/dtfield.c
+++ b/sys/contrib/dev/acpica/compiler/dtfield.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dtio.c b/sys/contrib/dev/acpica/compiler/dtio.c
index 7bcf16b8f9d..b0a83038683 100644
--- a/sys/contrib/dev/acpica/compiler/dtio.c
+++ b/sys/contrib/dev/acpica/compiler/dtio.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -422,6 +422,12 @@ DtParseLine (
         End++;
     }
 
+    /* No value characters present */
+    if (End <= Start)
+    {
+        return (AE_OK);
+    }
+
     Length = ACPI_PTR_DIFF (End, Start);
     TmpValue = UtLocalCalloc (Length + 1);
 
diff --git a/sys/contrib/dev/acpica/compiler/dtparser.l b/sys/contrib/dev/acpica/compiler/dtparser.l
index 90fc39d8c66..b7574e77a6a 100644
--- a/sys/contrib/dev/acpica/compiler/dtparser.l
+++ b/sys/contrib/dev/acpica/compiler/dtparser.l
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dtparser.y b/sys/contrib/dev/acpica/compiler/dtparser.y
index d6d584b2c6e..9f6ad8b33d4 100644
--- a/sys/contrib/dev/acpica/compiler/dtparser.y
+++ b/sys/contrib/dev/acpica/compiler/dtparser.y
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dtsubtable.c b/sys/contrib/dev/acpica/compiler/dtsubtable.c
index 0c660b7ab8b..82a7b0c8a14 100644
--- a/sys/contrib/dev/acpica/compiler/dtsubtable.c
+++ b/sys/contrib/dev/acpica/compiler/dtsubtable.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -430,7 +430,12 @@ DtGetSubtableLength (
 
         case ACPI_DMT_IORTMEM:
 
-            Step = 10;
+            /*
+             * The ACPI_DMT_IORTMEM type is defined in AcpiDmTableInfoIortAcc.
+             * TODO: compute number of fields ("Step") directly from the array initialisation.
+             * This may require some refactoring of dmtbinfo2.c and acdiasasm.h
+             */
+            Step = 11;
             break;
 
         default:
diff --git a/sys/contrib/dev/acpica/compiler/dttable.c b/sys/contrib/dev/acpica/compiler/dttable.c
index effcf6d65e1..6e0a0fedb0c 100644
--- a/sys/contrib/dev/acpica/compiler/dttable.c
+++ b/sys/contrib/dev/acpica/compiler/dttable.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dttable1.c b/sys/contrib/dev/acpica/compiler/dttable1.c
index a513ff9ed00..d82153d6a59 100644
--- a/sys/contrib/dev/acpica/compiler/dttable1.c
+++ b/sys/contrib/dev/acpica/compiler/dttable1.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -1726,6 +1726,124 @@ DtCompileDrtm (
 }
 
 
+/******************************************************************************
+ *
+ * FUNCTION:    DtCompileDtpr
+ *
+ * PARAMETERS:  List                - Current field list pointer
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Compile DTPR.
+ *
+ *****************************************************************************/
+
+ACPI_STATUS
+DtCompileDtpr (
+    void                    **List)
+{
+    ACPI_STATUS             Status;
+    DT_SUBTABLE             *Subtable;
+    DT_SUBTABLE             *ParentTable;
+    DT_FIELD                **PFieldList = (DT_FIELD **) List;
+    ACPI_TABLE_DTPR         *Dtpr;
+    ACPI_TPR_INSTANCE       *TprInst;
+    UINT32                  i, InsCnt, SrlCnt, TprCnt;
+
+
+    ParentTable = DtPeekSubtable ();
+
+    Status = DtCompileTable (PFieldList, AcpiDmTableInfoDtpr, &Subtable);
+    if (ACPI_FAILURE (Status))
+    {
+        return (Status);
+    }
+
+    DtInsertSubtable (ParentTable, Subtable);
+
+    Dtpr = ACPI_SUB_PTR (ACPI_TABLE_DTPR, Subtable->Buffer,
+                         sizeof (ACPI_TABLE_HEADER));
+    if (!Dtpr)
+    {
+        AcpiOsPrintf ("DTPR buffer pointer is NULL\n");
+        return (AE_NULL_OBJECT);
+    }
+
+    InsCnt = Dtpr->InsCnt;
+
+    while (*PFieldList)
+    {
+        for (i = 0; i < InsCnt; i++)
+        {
+            Status = DtCompileTable (PFieldList, AcpiDmTableInfoDtprInstance,
+                                     &Subtable);
+            if (ACPI_FAILURE (Status))
+            {
+                return (Status);
+            }
+
+            TprInst = ACPI_CAST_PTR (ACPI_TPR_INSTANCE, Subtable->Buffer);
+            if (!TprInst)
+            {
+                AcpiOsPrintf ("Tpr Instance buffer pointer is NULL\n");
+                return (AE_NULL_OBJECT);
+            }
+
+            TprCnt = TprInst->TprCnt;
+            DtInsertSubtable (ParentTable, Subtable);
+            DtPushSubtable (Subtable);
+            ParentTable = DtPeekSubtable ();
+
+            while (*PFieldList && TprCnt)
+            {
+                Status = DtCompileTable (PFieldList, AcpiDmTableInfoDtprArr,
+                                         &Subtable);
+                if (ACPI_FAILURE (Status))
+                {
+                    return (Status);
+                }
+
+                DtInsertSubtable (ParentTable, Subtable);
+                TprCnt--;
+            }
+
+            DtPopSubtable();
+            ParentTable = DtPeekSubtable ();
+        }
+
+        Status = DtCompileTable (PFieldList, AcpiDmTableInfoDtprSerializeReq0,
+                                 &Subtable);
+        if (ACPI_FAILURE (Status))
+        {
+            return (Status);
+        }
+
+        SrlCnt = *ACPI_CAST_PTR(UINT32, Subtable->Buffer);
+        DtInsertSubtable (ParentTable, Subtable);
+        DtPushSubtable (Subtable);
+        ParentTable = DtPeekSubtable ();
+
+        while (*PFieldList && SrlCnt)
+        {
+            Status = DtCompileTable (PFieldList, AcpiDmTableInfoDtprSerializeReq1,
+                                     &Subtable);
+            if (ACPI_FAILURE (Status))
+            {
+                return (Status);
+            }
+
+            DtInsertSubtable (ParentTable, Subtable);
+            SrlCnt--;
+        }
+
+
+        DtPopSubtable();
+        ParentTable = DtPeekSubtable ();
+    }
+
+    return Status;
+}
+
 /******************************************************************************
  *
  * FUNCTION:    DtCompileEinj
@@ -2984,6 +3102,19 @@ DtCompileIort (
             IortRmr->RmrCount = RmrCount;
             break;
 
+        case ACPI_IORT_NODE_IWB:
+
+            Status = DtCompileTable (PFieldList, AcpiDmTableInfoIort7,
+                &Subtable);
+            if (ACPI_FAILURE (Status))
+            {
+                return (Status);
+            }
+
+            DtInsertSubtable (ParentTable, Subtable);
+            NodeLength += Subtable->Length;
+            break;
+
         default:
 
             DtFatal (ASL_MSG_UNKNOWN_SUBTABLE, SubtableStart, "IORT");
diff --git a/sys/contrib/dev/acpica/compiler/dttable2.c b/sys/contrib/dev/acpica/compiler/dttable2.c
index 43484490ff3..e5ecb25332b 100644
--- a/sys/contrib/dev/acpica/compiler/dttable2.c
+++ b/sys/contrib/dev/acpica/compiler/dttable2.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -439,6 +439,21 @@ DtCompileMadt (
             InfoTable = AcpiDmTableInfoMadt27;
             break;
 
+		case ACPI_MADT_TYPE_GICV5_IRS:
+
+            InfoTable = AcpiDmTableInfoMadt28;
+            break;
+
+		case ACPI_MADT_TYPE_GICV5_ITS:
+
+            InfoTable = AcpiDmTableInfoMadt29;
+            break;
+
+		case ACPI_MADT_TYPE_GICV5_ITS_TRANSLATE:
+
+            InfoTable = AcpiDmTableInfoMadt30;
+            break;
+
         default:
 
             if (MadtHeader->Type >= ACPI_MADT_TYPE_OEM_RESERVED)
diff --git a/sys/contrib/dev/acpica/compiler/dttemplate.c b/sys/contrib/dev/acpica/compiler/dttemplate.c
index d7140712d4e..57d64cba27f 100644
--- a/sys/contrib/dev/acpica/compiler/dttemplate.c
+++ b/sys/contrib/dev/acpica/compiler/dttemplate.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/dttemplate.h b/sys/contrib/dev/acpica/compiler/dttemplate.h
index 88bc38f25c3..460f3a54afe 100644
--- a/sys/contrib/dev/acpica/compiler/dttemplate.h
+++ b/sys/contrib/dev/acpica/compiler/dttemplate.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -643,6 +643,23 @@ const unsigned char TemplateEcdt[] =
     0x09,0x00                                 /* 00000040    ".."       */
 };
 
+const unsigned char TemplateDtpr[] =
+{
+    0x44,0x54,0x50,0x52,0x68,0x00,0x00,0x00,  /* 00000000    "DTPRh..." */
+    0x01,0x0B,0x49,0x4E,0x54,0x45,0x4C,0x20,  /* 00000008    ".#INTEL." */
+    0x54,0x45,0x4D,0x50,0x4C,0x41,0x54,0x45,  /* 00000010    "TEMPLATE" */
+    0x00,0x00,0x00,0x01,0x49,0x4E,0x54,0x4C,  /* 00000018    "....INTL" */
+    0x04,0x04,0x25,0x20,0x00,0x00,0x00,0x00,  /* 00000020    "........" */
+    0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000028    "........" */
+    0x02,0x00,0x00,0x00,0x30,0xB0,0xAA,0xFF,  /* 00000030    "....0..." */
+    0xFF,0x1F,0x00,0x00,0x38,0xB0,0xAA,0xFF,  /* 00000038    "....8..." */
+    0xFF,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000040    "........" */
+    0x02,0x00,0x00,0x00,0x30,0xB0,0xBB,0xFF,  /* 00000048    "....0..." */
+    0xFF,0x1F,0x00,0x00,0x38,0xB0,0xBB,0xFF,  /* 00000050    "....8..." */
+    0xFF,0x1F,0x00,0x00,0x01,0x00,0x00,0x00,  /* 00000058    "........" */
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00   /* 00000060    "........" */
+};
+
 const unsigned char TemplateEinj[] =
 {
     0x45,0x49,0x4E,0x4A,0x30,0x01,0x00,0x00,  /* 00000000    "EINJ0..." */
@@ -1188,11 +1205,11 @@ const unsigned char TemplateHpet[] =
 
 const unsigned char TemplateIort[] =
 {
-    0x49,0x4F,0x52,0x54,0x3C,0x02,0x00,0x00,  /* 00000000    "IORT<..." */
-    0x05,0xCB,0x49,0x4E,0x54,0x45,0x4C,0x20,  /* 00000008    "..INTEL " */
+    0x49,0x4F,0x52,0x54,0x78,0x02,0x00,0x00,  /* 00000000    "IORTx..." */
+    0x05,0x85,0x49,0x4E,0x54,0x45,0x4C,0x20,  /* 00000008    "..INTEL " */
     0x54,0x65,0x6D,0x70,0x6C,0x61,0x74,0x65,  /* 00000010    "Template" */
     0x00,0x00,0x00,0x00,0x49,0x4E,0x54,0x4C,  /* 00000018    "....INTL" */
-    0x17,0x12,0x21,0x20,0x07,0x00,0x00,0x00,  /* 00000020    "..! ...." */
+    0x07,0x08,0x25,0x20,0x08,0x00,0x00,0x00,  /* 00000020    "..% ...." */
     0x34,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000028    "4......." */
     0x49,0x4F,0x52,0x54,0x00,0x18,0x00,0x01,  /* 00000030    "IORT...." */
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000038    "........" */
@@ -1204,10 +1221,10 @@ const unsigned char TemplateIort[] =
     0x00,0x5C,0x5F,0x53,0x42,0x2E,0x50,0x43,  /* 00000068    ".\_SB.PC" */
     0x49,0x30,0x2E,0x44,0x45,0x56,0x30,0x00,  /* 00000070    "I0.DEV0." */
     0x49,0x4F,0x52,0x54,0x3C,0x02,0x00,0x00,  /* 00000078    "IORT<..." */
-    0x03,0xF1,0x49,0x4E,0x54,0x45,0x4C,0x20,  /* 00000080    "..INTEL " */
+    0x05,0xCB,0x49,0x4E,0x54,0x45,0x4C,0x20,  /* 00000080    "..INTEL " */
     0x54,0x65,0x6D,0x70,0x6C,0x61,0x74,0x65,  /* 00000088    "Template" */
     0x00,0x00,0x00,0x00,0x49,0x4E,0x54,0x4C,  /* 00000090    "....INTL" */
-    0x05,0x01,0x21,0x20,0x07,0x00,0x00,0x00,  /* 00000098    "..! ...." */
+    0x17,0x12,0x21,0x20,0x07,0x00,0x00,0x00,  /* 00000098    "..! ...." */
     0x34,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 000000A0    "4......." */
     0x49,0x4F,0x52,0x54,0x00,0x18,0x00,0x01,  /* 000000A8    "IORT...." */
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 000000B0    "........" */
@@ -1259,7 +1276,14 @@ const unsigned char TemplateIort[] =
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000220    "........" */
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000228    "........" */
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000230    "........" */
-    0x00,0x00,0x00,0x00                       /* 00000238    "...."     */
+    0x00,0x00,0x00,0x00,0x07,0x3C,0x00,0x01,  /* 00000238    ".....<.." */
+    0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,  /* 00000240    "........" */
+    0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x2F,  /* 00000248    "(....../" */
+    0x00,0x00,0x00,0x00,0x00,0x00,0x5C,0x5F,  /* 00000250    "......\_" */
+    0x53,0x42,0x5F,0x2E,0x49,0x57,0x42,0x30,  /* 00000258    "SB_.IWB0" */
+    0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,  /* 00000260    "........" */
+    0x00,0x40,0x00,0x00,0x00,0x30,0x00,0x00,  /* 00000268    ".@...0.." */
+    0x00,0x01,0x00,0x00,0x00                  /* 00000270    "....."    */
 };
 
 const unsigned char TemplateIovt[] =
@@ -1387,15 +1411,15 @@ const unsigned char TemplateLpit[] =
     0x00,0x00,0x00,0x00                       /* 00000090    "...."     */
 };
 
-/* MADT with ACPI 6.0 subtables */
+/* MADT with ACPI 6.7 subtables */
 
 const unsigned char TemplateMadt[] =
 {
-    0x41,0x50,0x49,0x43,0x62,0x02,0x00,0x00,  /* 00000000    "APICb..." */
-    0x07,0x44,0x49,0x4E,0x54,0x45,0x4C,0x20,  /* 00000008    ".DINTEL " */
+    0x41,0x50,0x49,0x43,0xAA,0x02,0x00,0x00,  /* 00000000    "APIC...." */
+    0x07,0x5F,0x49,0x4E,0x54,0x45,0x4C,0x20,  /* 00000008    "._INTEL " */
     0x54,0x65,0x6D,0x70,0x6C,0x61,0x74,0x65,  /* 00000010    "Template" */
     0x01,0x00,0x00,0x00,0x49,0x4E,0x54,0x4C,  /* 00000018    "....INTL" */
-    0x28,0x06,0x23,0x20,0x00,0x00,0x00,0x00,  /* 00000020    "(.# ...." */
+    0x07,0x08,0x25,0x20,0x00,0x00,0x00,0x00,  /* 00000020    "..% ...." */
     0x01,0x00,0x00,0x00,0x00,0x08,0x00,0x00,  /* 00000028    "........" */
     0x01,0x00,0x00,0x00,0x01,0x0C,0x01,0x00,  /* 00000030    "........" */
     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000038    "........" */
@@ -1467,7 +1491,16 @@ const unsigned char TemplateMadt[] =
     0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,  /* 00000248    "..`....." */
     0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,  /* 00000250    "....`..." */
     0x00,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000258    "........" */
-    0x00,0x00                                 /* 00000260    ".."       */
+    0x00,0x00,0x1D,0x10,0x00,0x00,0x00,0x00,  /* 00000260    "........" */
+    0x00,0x00,0x00,0x00,0x12,0x2F,0x00,0x00,  /* 00000268    "...../.." */
+    0x00,0x00,0x1E,0x18,0x00,0x00,0x00,0x00,  /* 00000270    "........" */
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000278    "........" */
+    0x00,0x00,0x00,0x00,0x13,0x2F,0x00,0x00,  /* 00000280    "...../.." */
+    0x00,0x00,0x1C,0x20,0x05,0x00,0x00,0x00,  /* 00000288    "... ...." */
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000290    "........" */
+    0x00,0x00,0x00,0x00,0x1A,0x2F,0x00,0x00,  /* 00000298    "...../.." */
+    0x00,0x00,0x00,0x00,0x1B,0x2F,0x00,0x00,  /* 000002A0    "...../.." */
+    0x00,0x00                                 /* 000002A8    ".."       */
 };
 
 const unsigned char TemplateMcfg[] =
diff --git a/sys/contrib/dev/acpica/compiler/dtutils.c b/sys/contrib/dev/acpica/compiler/dtutils.c
index f3b9fa856dd..ff3b1b6e945 100644
--- a/sys/contrib/dev/acpica/compiler/dtutils.c
+++ b/sys/contrib/dev/acpica/compiler/dtutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/preprocess.h b/sys/contrib/dev/acpica/compiler/preprocess.h
index 26a11f57340..8e3a602027b 100644
--- a/sys/contrib/dev/acpica/compiler/preprocess.h
+++ b/sys/contrib/dev/acpica/compiler/preprocess.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/prexpress.c b/sys/contrib/dev/acpica/compiler/prexpress.c
index b2e7b785c5e..ec430eda1b1 100644
--- a/sys/contrib/dev/acpica/compiler/prexpress.c
+++ b/sys/contrib/dev/acpica/compiler/prexpress.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/prmacros.c b/sys/contrib/dev/acpica/compiler/prmacros.c
index 6d2acf52b98..350839192c4 100644
--- a/sys/contrib/dev/acpica/compiler/prmacros.c
+++ b/sys/contrib/dev/acpica/compiler/prmacros.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/prparser.l b/sys/contrib/dev/acpica/compiler/prparser.l
index fe049512191..d286cb84da7 100644
--- a/sys/contrib/dev/acpica/compiler/prparser.l
+++ b/sys/contrib/dev/acpica/compiler/prparser.l
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/prparser.y b/sys/contrib/dev/acpica/compiler/prparser.y
index 47edb20dcba..7a724e9ed55 100644
--- a/sys/contrib/dev/acpica/compiler/prparser.y
+++ b/sys/contrib/dev/acpica/compiler/prparser.y
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/prscan.c b/sys/contrib/dev/acpica/compiler/prscan.c
index 81b703cfb08..59ef7cc73bf 100644
--- a/sys/contrib/dev/acpica/compiler/prscan.c
+++ b/sys/contrib/dev/acpica/compiler/prscan.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/compiler/prutils.c b/sys/contrib/dev/acpica/compiler/prutils.c
index 902baed833c..2bf700594ae 100644
--- a/sys/contrib/dev/acpica/compiler/prutils.c
+++ b/sys/contrib/dev/acpica/compiler/prutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbcmds.c b/sys/contrib/dev/acpica/components/debugger/dbcmds.c
index 17ec5f34261..8b335c0c6ad 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbcmds.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbcmds.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbconvert.c b/sys/contrib/dev/acpica/components/debugger/dbconvert.c
index ed464e25bdb..0a7cc420c07 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbconvert.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbconvert.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbdisply.c b/sys/contrib/dev/acpica/components/debugger/dbdisply.c
index c57a19d0dbd..c2812a1d171 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbdisply.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbdisply.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbexec.c b/sys/contrib/dev/acpica/components/debugger/dbexec.c
index 38c7496ebba..c1f4e8a52f2 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbexec.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbexec.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbfileio.c b/sys/contrib/dev/acpica/components/debugger/dbfileio.c
index b006ac9d330..d575f4929d3 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbfileio.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbfileio.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbhistry.c b/sys/contrib/dev/acpica/components/debugger/dbhistry.c
index 45d44d11f31..5a7ecbaa51b 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbhistry.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbhistry.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbinput.c b/sys/contrib/dev/acpica/components/debugger/dbinput.c
index e3836444888..03fa49a6342 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbinput.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbinput.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbmethod.c b/sys/contrib/dev/acpica/components/debugger/dbmethod.c
index 27e572d5ad1..8f2586784fc 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbmethod.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbmethod.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbnames.c b/sys/contrib/dev/acpica/components/debugger/dbnames.c
index fc6a26fe9cd..64abc3a5517 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbnames.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbnames.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbobject.c b/sys/contrib/dev/acpica/components/debugger/dbobject.c
index 0033b61ccab..5f8d511dca9 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbobject.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbobject.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbstats.c b/sys/contrib/dev/acpica/components/debugger/dbstats.c
index 76295cadd33..71ec9b23926 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbstats.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbstats.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbtest.c b/sys/contrib/dev/acpica/components/debugger/dbtest.c
index 4e0eb486c35..eda8013762b 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbtest.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbtest.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbutils.c b/sys/contrib/dev/acpica/components/debugger/dbutils.c
index 4a39f9aca9e..1382a4bcb60 100755
--- a/sys/contrib/dev/acpica/components/debugger/dbutils.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/debugger/dbxface.c b/sys/contrib/dev/acpica/components/debugger/dbxface.c
index 2150abc1610..885c633f01f 100644
--- a/sys/contrib/dev/acpica/components/debugger/dbxface.c
+++ b/sys/contrib/dev/acpica/components/debugger/dbxface.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmbuffer.c b/sys/contrib/dev/acpica/components/disassembler/dmbuffer.c
index d9e2273712e..0b008559dbe 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmbuffer.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmbuffer.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmcstyle.c b/sys/contrib/dev/acpica/components/disassembler/dmcstyle.c
index ce3aa09084d..89ecc7a39c0 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmcstyle.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmcstyle.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmdeferred.c b/sys/contrib/dev/acpica/components/disassembler/dmdeferred.c
index 3826f194d6f..b0cacb4d873 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmdeferred.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmdeferred.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmnames.c b/sys/contrib/dev/acpica/components/disassembler/dmnames.c
index 447618b5bc5..0f5df03dbf4 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmnames.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmnames.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmopcode.c b/sys/contrib/dev/acpica/components/disassembler/dmopcode.c
index 1cb1c81d74e..73e9d168d7c 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmopcode.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmopcode.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -797,6 +797,7 @@ AcpiDmDisassembleOneOp (
     UINT32                  Offset;
     UINT32                  Length;
     ACPI_PARSE_OBJECT       *Child;
+    ACPI_PARSE_OBJECT       *MethodCallOp;
     ACPI_STATUS             Status;
     UINT8                   *Aml;
     const AH_DEVICE_ID      *IdInfo;
@@ -986,6 +987,13 @@ AcpiDmDisassembleOneOp (
     case AML_INT_NAMEPATH_OP:
 
         AcpiDmNamestring (Op->Common.Value.Name);
+        /* If this namepath is a Package element, emit a separating comma */
+        if ((Op->Common.Parent) &&
+            ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
+             (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP)))
+        {
+            AcpiOsPrintf (", ");
+        }
         break;
 
     case AML_INT_NAMEDFIELD_OP:
@@ -1086,10 +1094,19 @@ AcpiDmDisassembleOneOp (
 
     case AML_INT_METHODCALL_OP:
 
+        MethodCallOp = Op;
         Op = AcpiPsGetDepthNext (NULL, Op);
         Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
 
         AcpiDmNamestring (Op->Common.Value.Name);
+
+        /* If the method name is a Package element, emit a separating comma */
+        if ((MethodCallOp->Common.Parent) &&
+            ((MethodCallOp->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
+             (MethodCallOp->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP)))
+        {
+            AcpiOsPrintf (", ");
+        }
         break;
 
     case AML_WHILE_OP:
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmresrc.c b/sys/contrib/dev/acpica/components/disassembler/dmresrc.c
index e5a859ed47b..a91b2c0ee00 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmresrc.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmresrc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -536,9 +536,30 @@ AcpiDmIsResourceTemplate (
         return (AE_TYPE);
     }
 
+    /*
+     * Check if this op was allocated from the extended parse object cache.
+     * Only extended ops (NAMED_OBJECT, DEFERRED, BYTELIST) have the
+     * Named.Data and Named.Length fields. Generic ops would overflow.
+     */
+    if (NextOp->Common.Flags == ACPI_PARSEOP_GENERIC)
+    {
+        return (AE_TYPE);
+    }
+
     Aml = NextOp->Named.Data;
     BufferLength = NextOp->Common.Value.Size;
 
+    /*
+     * Validate BufferLength against Named.Length to prevent reading
+     * beyond the actual data. Named.Length is computed during parsing
+     * and represents the actual byte count, while Value.Size comes
+     * from the AML and can be manipulated by malformed AML.
+     */
+    if (BufferLength > NextOp->Named.Length)
+    {
+        return (AE_TYPE);
+    }
+
     /*
      * Any buffer smaller than one byte cannot possibly be a resource
      * template. Two bytes could possibly be a "NULL" resource template
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmresrcl.c b/sys/contrib/dev/acpica/components/disassembler/dmresrcl.c
index b50766bcdf2..f72b96f4a6f 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmresrcl.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmresrcl.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmresrcl2.c b/sys/contrib/dev/acpica/components/disassembler/dmresrcl2.c
index 551cf8178d9..0ccd03018d7 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmresrcl2.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmresrcl2.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmresrcs.c b/sys/contrib/dev/acpica/components/disassembler/dmresrcs.c
index 1398462cecf..c601c357c47 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmresrcs.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmresrcs.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmutils.c b/sys/contrib/dev/acpica/components/disassembler/dmutils.c
index 41e26ee4b75..1c674769348 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmutils.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/disassembler/dmwalk.c b/sys/contrib/dev/acpica/components/disassembler/dmwalk.c
index 36f6def2bba..fda26ecb05b 100644
--- a/sys/contrib/dev/acpica/components/disassembler/dmwalk.c
+++ b/sys/contrib/dev/acpica/components/disassembler/dmwalk.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -305,13 +305,6 @@ AcpiDmWalkParseTree (
             }
         }
 
-        /* Terminate walk at start op */
-
-        if (Op == StartOp)
-        {
-            break;
-        }
-
         /* No more children, re-visit this node */
 
         if (!NodePreviouslyVisited)
@@ -320,6 +313,13 @@ AcpiDmWalkParseTree (
             continue;
         }
 
+        /* Terminate walk at start op */
+
+        if (Op == StartOp)
+        {
+            break;
+        }
+
         /* No more children, visit peers */
 
         if (Op->Common.Next)
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsargs.c b/sys/contrib/dev/acpica/components/dispatcher/dsargs.c
index 4a60cde8a15..e44ad78496d 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsargs.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsargs.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dscontrol.c b/sys/contrib/dev/acpica/components/dispatcher/dscontrol.c
index fcf10cf4e85..62165593319 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dscontrol.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dscontrol.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsdebug.c b/sys/contrib/dev/acpica/components/dispatcher/dsdebug.c
index feb7f58a95d..eba73f94896 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsdebug.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsdebug.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsfield.c b/sys/contrib/dev/acpica/components/dispatcher/dsfield.c
index baa6a2eef26..7972eb03efb 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsfield.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsfield.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsinit.c b/sys/contrib/dev/acpica/components/dispatcher/dsinit.c
index bcf2d4f112c..eecb4601137 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsinit.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsinit.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsmethod.c b/sys/contrib/dev/acpica/components/dispatcher/dsmethod.c
index becdb95f8b8..bc7b559a0f3 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsmethod.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsmethod.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -901,6 +901,8 @@ AcpiDsTerminateControlMethod (
     ACPI_OPERAND_OBJECT     *MethodDesc,
     ACPI_WALK_STATE         *WalkState)
 {
+    UINT32                  i;
+    ACPI_NAMESPACE_NODE     *RefNode;
 
     ACPI_FUNCTION_TRACE_PTR (DsTerminateControlMethod, WalkState);
 
@@ -914,6 +916,45 @@ AcpiDsTerminateControlMethod (
 
     if (WalkState)
     {
+        /*
+         * Check if the return value is a RefOf reference to a method local
+         * or argument. If so, clear the reference to avoid use-after-free
+         * when the walk state is deleted.
+         */
+        if (WalkState->ReturnDesc &&
+            (WalkState->ReturnDesc->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
+            (WalkState->ReturnDesc->Reference.Class == ACPI_REFCLASS_REFOF))
+        {
+            RefNode = WalkState->ReturnDesc->Reference.Object;
+            if (RefNode)
+            {
+                /* Check against method locals */
+                for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++)
+                {
+                    if (RefNode == &WalkState->LocalVariables[i])
+                    {
+                        AcpiUtRemoveReference (WalkState->ReturnDesc);
+                        WalkState->ReturnDesc = NULL;
+                        break;
+                    }
+                }
+
+                /* Check against method arguments if not already cleared */
+                if (WalkState->ReturnDesc)
+                {
+                    for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++)
+                    {
+                        if (RefNode == &WalkState->Arguments[i])
+                        {
+                            AcpiUtRemoveReference (WalkState->ReturnDesc);
+                            WalkState->ReturnDesc = NULL;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+
         /* Delete all arguments and locals */
 
         AcpiDsMethodDataDeleteAll (WalkState);
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsmthdat.c b/sys/contrib/dev/acpica/components/dispatcher/dsmthdat.c
index 2c45e8c91f5..8f401774e63 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsmthdat.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsmthdat.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsobject.c b/sys/contrib/dev/acpica/components/dispatcher/dsobject.c
index cd9921e5926..cc233ad59ac 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsobject.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsobject.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c b/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c
index 23c7065bec5..7c47bab397d 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsopcode.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dspkginit.c b/sys/contrib/dev/acpica/components/dispatcher/dspkginit.c
index 6365ab4b0f2..8e37e9384c4 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dspkginit.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dspkginit.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dsutils.c b/sys/contrib/dev/acpica/components/dispatcher/dsutils.c
index 04b65326b51..4105850932a 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dsutils.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dsutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dswexec.c b/sys/contrib/dev/acpica/components/dispatcher/dswexec.c
index 1e287fae997..3243280ae42 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dswexec.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dswexec.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dswload.c b/sys/contrib/dev/acpica/components/dispatcher/dswload.c
index 8c9969de14f..5a0caaaf185 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dswload.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dswload.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dswload2.c b/sys/contrib/dev/acpica/components/dispatcher/dswload2.c
index 8ef7ff4090d..33572fd966e 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dswload2.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dswload2.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dswscope.c b/sys/contrib/dev/acpica/components/dispatcher/dswscope.c
index faf08bcfb39..f5a7ded02bc 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dswscope.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dswscope.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dswstate.c b/sys/contrib/dev/acpica/components/dispatcher/dswstate.c
index f353951961b..cfd55276391 100644
--- a/sys/contrib/dev/acpica/components/dispatcher/dswstate.c
+++ b/sys/contrib/dev/acpica/components/dispatcher/dswstate.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evevent.c b/sys/contrib/dev/acpica/components/events/evevent.c
index da5e633e590..b8e23ec8698 100644
--- a/sys/contrib/dev/acpica/components/events/evevent.c
+++ b/sys/contrib/dev/acpica/components/events/evevent.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evglock.c b/sys/contrib/dev/acpica/components/events/evglock.c
index 395ca14fb31..bd9a414359a 100644
--- a/sys/contrib/dev/acpica/components/events/evglock.c
+++ b/sys/contrib/dev/acpica/components/events/evglock.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evgpe.c b/sys/contrib/dev/acpica/components/events/evgpe.c
index 2ce159c46be..075e6230cb0 100644
--- a/sys/contrib/dev/acpica/components/events/evgpe.c
+++ b/sys/contrib/dev/acpica/components/events/evgpe.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evgpeblk.c b/sys/contrib/dev/acpica/components/events/evgpeblk.c
index d30f31c641a..9eff36bc46e 100644
--- a/sys/contrib/dev/acpica/components/events/evgpeblk.c
+++ b/sys/contrib/dev/acpica/components/events/evgpeblk.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evgpeinit.c b/sys/contrib/dev/acpica/components/events/evgpeinit.c
index 0ae8bb70036..ab734880710 100644
--- a/sys/contrib/dev/acpica/components/events/evgpeinit.c
+++ b/sys/contrib/dev/acpica/components/events/evgpeinit.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evgpeutil.c b/sys/contrib/dev/acpica/components/events/evgpeutil.c
index 0dc2fdf01b5..84111281703 100644
--- a/sys/contrib/dev/acpica/components/events/evgpeutil.c
+++ b/sys/contrib/dev/acpica/components/events/evgpeutil.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evhandler.c b/sys/contrib/dev/acpica/components/events/evhandler.c
index 9c69d69b524..8f29e830faa 100644
--- a/sys/contrib/dev/acpica/components/events/evhandler.c
+++ b/sys/contrib/dev/acpica/components/events/evhandler.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -290,6 +290,13 @@ AcpiEvHasDefaultHandler (
 
         while (HandlerObj)
         {
+            /* Validate handler object type before accessing fields */
+
+            if (HandlerObj->Common.Type != ACPI_TYPE_LOCAL_ADDRESS_HANDLER)
+            {
+                break;
+            }
+
             if (HandlerObj->AddressSpace.SpaceId == SpaceId)
             {
                 if (HandlerObj->AddressSpace.HandlerFlags &
@@ -460,6 +467,11 @@ AcpiEvFindRegionHandler (
 
     while (HandlerObj)
     {
+        if (HandlerObj->Common.Type != ACPI_TYPE_LOCAL_ADDRESS_HANDLER)
+        {
+            break;
+        }
+
         /* Same SpaceId indicates a handler is installed */
 
         if (HandlerObj->AddressSpace.SpaceId == SpaceId)
diff --git a/sys/contrib/dev/acpica/components/events/evmisc.c b/sys/contrib/dev/acpica/components/events/evmisc.c
index 1b8688dd872..13b2963ac04 100644
--- a/sys/contrib/dev/acpica/components/events/evmisc.c
+++ b/sys/contrib/dev/acpica/components/events/evmisc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evregion.c b/sys/contrib/dev/acpica/components/events/evregion.c
index 23f9ad00bc6..01c49b86f5d 100644
--- a/sys/contrib/dev/acpica/components/events/evregion.c
+++ b/sys/contrib/dev/acpica/components/events/evregion.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evrgnini.c b/sys/contrib/dev/acpica/components/events/evrgnini.c
index 1f16655195e..40943bb0de4 100644
--- a/sys/contrib/dev/acpica/components/events/evrgnini.c
+++ b/sys/contrib/dev/acpica/components/events/evrgnini.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evsci.c b/sys/contrib/dev/acpica/components/events/evsci.c
index cd1dc4da631..156b19d9abd 100644
--- a/sys/contrib/dev/acpica/components/events/evsci.c
+++ b/sys/contrib/dev/acpica/components/events/evsci.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evxface.c b/sys/contrib/dev/acpica/components/events/evxface.c
index 54634c61e51..fc4ecaeb1e6 100644
--- a/sys/contrib/dev/acpica/components/events/evxface.c
+++ b/sys/contrib/dev/acpica/components/events/evxface.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evxfevnt.c b/sys/contrib/dev/acpica/components/events/evxfevnt.c
index 60837084e86..0eba3a5028f 100644
--- a/sys/contrib/dev/acpica/components/events/evxfevnt.c
+++ b/sys/contrib/dev/acpica/components/events/evxfevnt.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evxfgpe.c b/sys/contrib/dev/acpica/components/events/evxfgpe.c
index 1ffcff259a2..1b99879a7fb 100644
--- a/sys/contrib/dev/acpica/components/events/evxfgpe.c
+++ b/sys/contrib/dev/acpica/components/events/evxfgpe.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/events/evxfregn.c b/sys/contrib/dev/acpica/components/events/evxfregn.c
index bbdf4352b41..706b13f2b81 100644
--- a/sys/contrib/dev/acpica/components/events/evxfregn.c
+++ b/sys/contrib/dev/acpica/components/events/evxfregn.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exconcat.c b/sys/contrib/dev/acpica/components/executer/exconcat.c
index 060dbf946d8..a03d3c1c651 100644
--- a/sys/contrib/dev/acpica/components/executer/exconcat.c
+++ b/sys/contrib/dev/acpica/components/executer/exconcat.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exconfig.c b/sys/contrib/dev/acpica/components/executer/exconfig.c
index 6f3f8d24bac..f73863e8d74 100644
--- a/sys/contrib/dev/acpica/components/executer/exconfig.c
+++ b/sys/contrib/dev/acpica/components/executer/exconfig.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -247,6 +247,8 @@ AcpiExLoadTableOp (
     ACPI_OPERAND_OBJECT     *ReturnObj;
     ACPI_OPERAND_OBJECT     *DdbHandle;
     UINT32                  TableIndex;
+    char                    OemId[ACPI_OEM_ID_SIZE + 1];
+    char                    OemTableId[ACPI_OEM_TABLE_ID_SIZE + 1];
 
 
     ACPI_FUNCTION_TRACE (ExLoadTableOp);
@@ -262,13 +264,34 @@ AcpiExLoadTableOp (
 
     *ReturnDesc = ReturnObj;
 
+    /*
+     * Validate OEM ID and OEM Table ID string lengths.
+     * AcpiTbFindTable expects strings that can safely read
+     * ACPI_OEM_ID_SIZE and ACPI_OEM_TABLE_ID_SIZE bytes.
+     */
+    if ((Operand[1]->String.Length > ACPI_OEM_ID_SIZE) ||
+        (Operand[2]->String.Length > ACPI_OEM_TABLE_ID_SIZE))
+    {
+        return_ACPI_STATUS (AE_AML_STRING_LIMIT);
+    }
+
+    /*
+     * Copy OEM strings to local buffers with guaranteed null-termination.
+     * This prevents heap-buffer-overflow when AcpiTbFindTable reads
+     * ACPI_OEM_ID_SIZE/ACPI_OEM_TABLE_ID_SIZE bytes.
+     */
+    memcpy (OemId, Operand[1]->String.Pointer, Operand[1]->String.Length);
+    OemId[Operand[1]->String.Length] = 0;
+    memcpy (OemTableId, Operand[2]->String.Pointer, Operand[2]->String.Length);
+    OemTableId[Operand[2]->String.Length] = 0;
+
     /* Find the ACPI table in the RSDT/XSDT */
 
     AcpiExExitInterpreter ();
     Status = AcpiTbFindTable (
         Operand[0]->String.Pointer,
-        Operand[1]->String.Pointer,
-        Operand[2]->String.Pointer, &TableIndex);
+        OemId,
+        OemTableId, &TableIndex);
     AcpiExEnterInterpreter ();
     if (ACPI_FAILURE (Status))
     {
diff --git a/sys/contrib/dev/acpica/components/executer/exconvrt.c b/sys/contrib/dev/acpica/components/executer/exconvrt.c
index 9c091864d7e..82397b60658 100644
--- a/sys/contrib/dev/acpica/components/executer/exconvrt.c
+++ b/sys/contrib/dev/acpica/components/executer/exconvrt.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/excreate.c b/sys/contrib/dev/acpica/components/executer/excreate.c
index 75f1d631d11..b1b6d3509dd 100644
--- a/sys/contrib/dev/acpica/components/executer/excreate.c
+++ b/sys/contrib/dev/acpica/components/executer/excreate.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exdebug.c b/sys/contrib/dev/acpica/components/executer/exdebug.c
index 6a927eb2639..25b05477e06 100644
--- a/sys/contrib/dev/acpica/components/executer/exdebug.c
+++ b/sys/contrib/dev/acpica/components/executer/exdebug.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exdump.c b/sys/contrib/dev/acpica/components/executer/exdump.c
index 581d183d919..3a7e20e6d6b 100644
--- a/sys/contrib/dev/acpica/components/executer/exdump.c
+++ b/sys/contrib/dev/acpica/components/executer/exdump.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exfield.c b/sys/contrib/dev/acpica/components/executer/exfield.c
index 6c27e7dfcb3..88dc6546fbd 100644
--- a/sys/contrib/dev/acpica/components/executer/exfield.c
+++ b/sys/contrib/dev/acpica/components/executer/exfield.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exfldio.c b/sys/contrib/dev/acpica/components/executer/exfldio.c
index b3d1d73c096..d164b1186ed 100644
--- a/sys/contrib/dev/acpica/components/executer/exfldio.c
+++ b/sys/contrib/dev/acpica/components/executer/exfldio.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exmisc.c b/sys/contrib/dev/acpica/components/executer/exmisc.c
index 9b9b6b3005c..d1925921405 100644
--- a/sys/contrib/dev/acpica/components/executer/exmisc.c
+++ b/sys/contrib/dev/acpica/components/executer/exmisc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exmutex.c b/sys/contrib/dev/acpica/components/executer/exmutex.c
index fe1220d6abf..cda70bcf7cc 100644
--- a/sys/contrib/dev/acpica/components/executer/exmutex.c
+++ b/sys/contrib/dev/acpica/components/executer/exmutex.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exnames.c b/sys/contrib/dev/acpica/components/executer/exnames.c
index 105103f81f1..1d287c7e495 100644
--- a/sys/contrib/dev/acpica/components/executer/exnames.c
+++ b/sys/contrib/dev/acpica/components/executer/exnames.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exoparg1.c b/sys/contrib/dev/acpica/components/executer/exoparg1.c
index 13af957693b..b15335c0cc3 100644
--- a/sys/contrib/dev/acpica/components/executer/exoparg1.c
+++ b/sys/contrib/dev/acpica/components/executer/exoparg1.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exoparg2.c b/sys/contrib/dev/acpica/components/executer/exoparg2.c
index 4bc3cf79e1e..7dfcff0ece0 100644
--- a/sys/contrib/dev/acpica/components/executer/exoparg2.c
+++ b/sys/contrib/dev/acpica/components/executer/exoparg2.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exoparg3.c b/sys/contrib/dev/acpica/components/executer/exoparg3.c
index 30de8487e67..e29b322ec9c 100644
--- a/sys/contrib/dev/acpica/components/executer/exoparg3.c
+++ b/sys/contrib/dev/acpica/components/executer/exoparg3.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -225,11 +225,18 @@ AcpiExOpcode_3A_0T_0R (
 
         AcpiOsSignal (ACPI_SIGNAL_FATAL, &Fatal);
 
+#ifndef ACPI_CONTINUE_ON_FATAL
         /*
          * Might return while OS is shutting down, so abort the AML execution
          * by returning an error.
          */
         return_ACPI_STATUS (AE_ERROR);
+#else
+	/*
+	 * The alstests require that the Fatal() opcode does not return an error.
+	 */
+	return_ACPI_STATUS (AE_OK);
+#endif
 
     case AML_EXTERNAL_OP:
         /*
@@ -313,7 +320,8 @@ AcpiExOpcode_3A_1T_1R (
 
         /* Truncate request if larger than the actual String/Buffer */
 
-        else if ((Index + Length) > Operand[0]->String.Length)
+        else if ((Index + Length) > Operand[0]->String.Length ||
+                 (Index + Length) < Index) /* Check for overflow */
         {
             Length =
                 (ACPI_SIZE) Operand[0]->String.Length - (ACPI_SIZE) Index;
diff --git a/sys/contrib/dev/acpica/components/executer/exoparg6.c b/sys/contrib/dev/acpica/components/executer/exoparg6.c
index a9092ba2e4e..9fe874576be 100644
--- a/sys/contrib/dev/acpica/components/executer/exoparg6.c
+++ b/sys/contrib/dev/acpica/components/executer/exoparg6.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exprep.c b/sys/contrib/dev/acpica/components/executer/exprep.c
index dc04b77b7ea..2f70b14d5f3 100644
--- a/sys/contrib/dev/acpica/components/executer/exprep.c
+++ b/sys/contrib/dev/acpica/components/executer/exprep.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exregion.c b/sys/contrib/dev/acpica/components/executer/exregion.c
index 4e9f535ef9a..7d4e182f4fe 100644
--- a/sys/contrib/dev/acpica/components/executer/exregion.c
+++ b/sys/contrib/dev/acpica/components/executer/exregion.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exresnte.c b/sys/contrib/dev/acpica/components/executer/exresnte.c
index 0c66f0b4d4f..3fad5e38bee 100644
--- a/sys/contrib/dev/acpica/components/executer/exresnte.c
+++ b/sys/contrib/dev/acpica/components/executer/exresnte.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exresolv.c b/sys/contrib/dev/acpica/components/executer/exresolv.c
index 81d93441898..62c26854511 100644
--- a/sys/contrib/dev/acpica/components/executer/exresolv.c
+++ b/sys/contrib/dev/acpica/components/executer/exresolv.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exresop.c b/sys/contrib/dev/acpica/components/executer/exresop.c
index 0a89bc78d3e..ad82bfad9d0 100644
--- a/sys/contrib/dev/acpica/components/executer/exresop.c
+++ b/sys/contrib/dev/acpica/components/executer/exresop.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exserial.c b/sys/contrib/dev/acpica/components/executer/exserial.c
index 6d17c29569e..5b14147b75a 100644
--- a/sys/contrib/dev/acpica/components/executer/exserial.c
+++ b/sys/contrib/dev/acpica/components/executer/exserial.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exstore.c b/sys/contrib/dev/acpica/components/executer/exstore.c
index ebe767abd63..b7776ae192a 100644
--- a/sys/contrib/dev/acpica/components/executer/exstore.c
+++ b/sys/contrib/dev/acpica/components/executer/exstore.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exstoren.c b/sys/contrib/dev/acpica/components/executer/exstoren.c
index ed9fa9a7f13..07747f5e9f8 100644
--- a/sys/contrib/dev/acpica/components/executer/exstoren.c
+++ b/sys/contrib/dev/acpica/components/executer/exstoren.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exstorob.c b/sys/contrib/dev/acpica/components/executer/exstorob.c
index e9ddabd6c25..5938a9a1003 100644
--- a/sys/contrib/dev/acpica/components/executer/exstorob.c
+++ b/sys/contrib/dev/acpica/components/executer/exstorob.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exsystem.c b/sys/contrib/dev/acpica/components/executer/exsystem.c
index f91d8d04b3b..9a752d6e036 100644
--- a/sys/contrib/dev/acpica/components/executer/exsystem.c
+++ b/sys/contrib/dev/acpica/components/executer/exsystem.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/extrace.c b/sys/contrib/dev/acpica/components/executer/extrace.c
index b48a5fcb289..49cf4d755bd 100644
--- a/sys/contrib/dev/acpica/components/executer/extrace.c
+++ b/sys/contrib/dev/acpica/components/executer/extrace.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/executer/exutils.c b/sys/contrib/dev/acpica/components/executer/exutils.c
index 995edbc5990..3f42b246618 100644
--- a/sys/contrib/dev/acpica/components/executer/exutils.c
+++ b/sys/contrib/dev/acpica/components/executer/exutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwacpi.c b/sys/contrib/dev/acpica/components/hardware/hwacpi.c
index 74cfecfcc2a..859659706ad 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwacpi.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwacpi.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwesleep.c b/sys/contrib/dev/acpica/components/hardware/hwesleep.c
index 329d8a20b4b..9c525ca72bd 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwesleep.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwesleep.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwgpe.c b/sys/contrib/dev/acpica/components/hardware/hwgpe.c
index 681ca9a1b9d..f4dbbc3faf2 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwgpe.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwgpe.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwpci.c b/sys/contrib/dev/acpica/components/hardware/hwpci.c
index a9fc5cba2ff..d0403dfb3ab 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwpci.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwpci.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwregs.c b/sys/contrib/dev/acpica/components/hardware/hwregs.c
index d0f47b874ea..33ff9177f87 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwregs.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwregs.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwsleep.c b/sys/contrib/dev/acpica/components/hardware/hwsleep.c
index 210f4ea62de..9503617ccc3 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwsleep.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwsleep.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwtimer.c b/sys/contrib/dev/acpica/components/hardware/hwtimer.c
index 9a9602e0423..95361aa3c1a 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwtimer.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwtimer.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwvalid.c b/sys/contrib/dev/acpica/components/hardware/hwvalid.c
index 5c4df25d2c3..616b07101ba 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwvalid.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwvalid.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwxface.c b/sys/contrib/dev/acpica/components/hardware/hwxface.c
index 5f645617cbc..4e5bf8c3f81 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwxface.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwxface.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/hardware/hwxfsleep.c b/sys/contrib/dev/acpica/components/hardware/hwxfsleep.c
index 1d79e908cf0..fd0563b4104 100644
--- a/sys/contrib/dev/acpica/components/hardware/hwxfsleep.c
+++ b/sys/contrib/dev/acpica/components/hardware/hwxfsleep.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsaccess.c b/sys/contrib/dev/acpica/components/namespace/nsaccess.c
index 35d30ded0a6..2ef88ff7b5b 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsaccess.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsaccess.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsalloc.c b/sys/contrib/dev/acpica/components/namespace/nsalloc.c
index 69d1d7fa053..648c6ff8c13 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsalloc.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsalloc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsarguments.c b/sys/contrib/dev/acpica/components/namespace/nsarguments.c
index 8916484053b..73ce74ab921 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsarguments.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsarguments.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsconvert.c b/sys/contrib/dev/acpica/components/namespace/nsconvert.c
index ad4890b591a..10432473543 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsconvert.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsconvert.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsdump.c b/sys/contrib/dev/acpica/components/namespace/nsdump.c
index bf4aa145507..300672e261e 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsdump.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsdump.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsdumpdv.c b/sys/contrib/dev/acpica/components/namespace/nsdumpdv.c
index dc370a6e301..172935d986e 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsdumpdv.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsdumpdv.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nseval.c b/sys/contrib/dev/acpica/components/namespace/nseval.c
index 765b270ad2a..a977b65672b 100644
--- a/sys/contrib/dev/acpica/components/namespace/nseval.c
+++ b/sys/contrib/dev/acpica/components/namespace/nseval.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsinit.c b/sys/contrib/dev/acpica/components/namespace/nsinit.c
index ed37aee8250..da4775f1563 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsinit.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsinit.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsload.c b/sys/contrib/dev/acpica/components/namespace/nsload.c
index bbd36a8a29a..c81ecde7923 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsload.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsload.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsnames.c b/sys/contrib/dev/acpica/components/namespace/nsnames.c
index a5aa1139792..c1fc31b4bda 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsnames.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsnames.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -400,6 +400,13 @@ AcpiNsBuildNormalizedPath (
         goto BuildTrailingNull;
     }
 
+    /* Validate the Node to avoid use-after-free vulnerabilities */
+
+    if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED)
+    {
+        goto BuildTrailingNull;
+    }
+
     NextNode = Node;
     while (NextNode && NextNode != AcpiGbl_RootNode)
     {
diff --git a/sys/contrib/dev/acpica/components/namespace/nsobject.c b/sys/contrib/dev/acpica/components/namespace/nsobject.c
index fd6f0a52469..246d93ce74f 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsobject.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsobject.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -336,6 +336,13 @@ AcpiNsDetachObject (
 
     ObjDesc = Node->Object;
 
+    /* Alias nodes point directly to other namespace nodes; skip teardown */
+    if (Node->Flags & ANOBJ_IS_ALIAS)
+    {
+        Node->Object = NULL;
+        return_VOID;
+    }
+
     if (!ObjDesc ||
         (ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA))
     {
diff --git a/sys/contrib/dev/acpica/components/namespace/nsparse.c b/sys/contrib/dev/acpica/components/namespace/nsparse.c
index c5d35bac831..ee9e9a6ce03 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsparse.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsparse.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nspredef.c b/sys/contrib/dev/acpica/components/namespace/nspredef.c
index 5bb5d5bf67c..b63a1e2ada2 100644
--- a/sys/contrib/dev/acpica/components/namespace/nspredef.c
+++ b/sys/contrib/dev/acpica/components/namespace/nspredef.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsprepkg.c b/sys/contrib/dev/acpica/components/namespace/nsprepkg.c
index 6fced55328b..2deadcf39d7 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsprepkg.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsprepkg.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -779,6 +779,13 @@ AcpiNsCustomPackage (
 
     /* Get version number, must be Integer */
 
+    if (!(*Elements))
+    {
+        ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, Info->NodeFlags,
+            "Return Package has a NULL version element"));
+        return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
+    }
+
     if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER)
     {
         ACPI_WARN_PREDEFINED ((AE_INFO, Info->FullPathname, Info->NodeFlags,
diff --git a/sys/contrib/dev/acpica/components/namespace/nsrepair.c b/sys/contrib/dev/acpica/components/namespace/nsrepair.c
index 8d0e86932e1..edecc8ddfd6 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsrepair.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsrepair.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsrepair2.c b/sys/contrib/dev/acpica/components/namespace/nsrepair2.c
index 0dddebda980..c70e3b9027a 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsrepair2.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsrepair2.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nssearch.c b/sys/contrib/dev/acpica/components/namespace/nssearch.c
index d956358e8e3..8e6fa7cae3f 100644
--- a/sys/contrib/dev/acpica/components/namespace/nssearch.c
+++ b/sys/contrib/dev/acpica/components/namespace/nssearch.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsutils.c b/sys/contrib/dev/acpica/components/namespace/nsutils.c
index bf400ed2370..20031654469 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsutils.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsutils.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nswalk.c b/sys/contrib/dev/acpica/components/namespace/nswalk.c
index 14a608bc28f..0ef306cc562 100644
--- a/sys/contrib/dev/acpica/components/namespace/nswalk.c
+++ b/sys/contrib/dev/acpica/components/namespace/nswalk.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsxfeval.c b/sys/contrib/dev/acpica/components/namespace/nsxfeval.c
index f6a1ead7ddd..b996bf83446 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsxfeval.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsxfeval.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsxfname.c b/sys/contrib/dev/acpica/components/namespace/nsxfname.c
index 94800cb531c..9b18825c047 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsxfname.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsxfname.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/namespace/nsxfobj.c b/sys/contrib/dev/acpica/components/namespace/nsxfobj.c
index ea0654285a9..42dd1082861 100644
--- a/sys/contrib/dev/acpica/components/namespace/nsxfobj.c
+++ b/sys/contrib/dev/acpica/components/namespace/nsxfobj.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/psargs.c b/sys/contrib/dev/acpica/components/parser/psargs.c
index d9110c09fcb..fecb11677c3 100644
--- a/sys/contrib/dev/acpica/components/parser/psargs.c
+++ b/sys/contrib/dev/acpica/components/parser/psargs.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -197,6 +197,7 @@ AcpiPsGetNextPackageLength (
     UINT32                  PackageLength = 0;
     UINT32                  ByteCount;
     UINT8                   ByteZeroMask = 0x3F; /* Default [0:5] */
+    UINT32                  Remaining;
 
 
     ACPI_FUNCTION_TRACE (PsGetNextPackageLength);
@@ -206,7 +207,24 @@ AcpiPsGetNextPackageLength (
      * Byte 0 bits [6:7] contain the number of additional bytes
      * used to encode the package length, either 0,1,2, or 3
      */
+
+    /* Check if we have at least one byte to read */
+    Remaining = (UINT32) ACPI_PTR_DIFF (ParserState->AmlEnd, Aml);
+    if (Remaining == 0)
+    {
+        return_UINT32 (0);
+    }
+
     ByteCount = (Aml[0] >> 6);
+
+    /* Validate ByteCount and ensure we have enough bytes to read */
+    if (ByteCount >= Remaining)
+    {
+        /* Clamp to available bytes and advance to end */
+        ParserState->Aml = ParserState->AmlEnd;
+        return_UINT32 (0);
+    }
+
     ParserState->Aml += ((ACPI_SIZE) ByteCount + 1);
 
     /* Get bytes 3, 2, 1 as needed */
@@ -545,6 +563,8 @@ AcpiPsGetNextSimpleArg (
     UINT32                  Length;
     UINT16                  Opcode;
     UINT8                   *Aml = ParserState->Aml;
+    UINT32                  Remaining = (UINT32) ACPI_PTR_DIFF (ParserState->AmlEnd, Aml);
+    UINT64                  PartialValue;
 
 
     ACPI_FUNCTION_TRACE_U32 (PsGetNextSimpleArg, ArgType);
@@ -557,8 +577,16 @@ AcpiPsGetNextSimpleArg (
         /* Get 1 byte from the AML stream */
 
         Opcode = AML_BYTE_OP;
-        Arg->Common.Value.Integer = (UINT64) *Aml;
-        Length = 1;
+        if (Remaining >= 1)
+        {
+            Arg->Common.Value.Integer = (UINT64) *Aml;
+            Length = 1;
+        }
+        else
+        {
+            Arg->Common.Value.Integer = 0;
+            Length = 0;
+        }
         break;
 
     case ARGP_WORDDATA:
@@ -566,8 +594,23 @@ AcpiPsGetNextSimpleArg (
         /* Get 2 bytes from the AML stream */
 
         Opcode = AML_WORD_OP;
-        ACPI_MOVE_16_TO_64 (&Arg->Common.Value.Integer, Aml);
-        Length = 2;
+        if (Remaining >= 2)
+        {
+            ACPI_MOVE_16_TO_64 (&Arg->Common.Value.Integer, Aml);
+            Length = 2;
+        }
+        else
+        {
+            Arg->Common.Value.Integer = 0;
+            Length = 0;
+            if (Remaining > 0)
+            {
+                PartialValue = 0;
+                memcpy (&PartialValue, Aml, Remaining);
+                Arg->Common.Value.Integer = PartialValue;
+                Length = Remaining;
+            }
+        }
         break;
 
     case ARGP_DWORDDATA:
@@ -575,8 +618,23 @@ AcpiPsGetNextSimpleArg (
         /* Get 4 bytes from the AML stream */
 
         Opcode = AML_DWORD_OP;
-        ACPI_MOVE_32_TO_64 (&Arg->Common.Value.Integer, Aml);
-        Length = 4;
+        if (Remaining >= 4)
+        {
+            ACPI_MOVE_32_TO_64 (&Arg->Common.Value.Integer, Aml);
+            Length = 4;
+        }
+        else
+        {
+            Arg->Common.Value.Integer = 0;
+            Length = 0;
+            if (Remaining > 0)
+            {
+                PartialValue = 0;
+                memcpy (&PartialValue, Aml, Remaining);
+                Arg->Common.Value.Integer = PartialValue;
+                Length = Remaining;
+            }
+        }
         break;
 
     case ARGP_QWORDDATA:
@@ -584,8 +642,23 @@ AcpiPsGetNextSimpleArg (
         /* Get 8 bytes from the AML stream */
 
         Opcode = AML_QWORD_OP;
-        ACPI_MOVE_64_TO_64 (&Arg->Common.Value.Integer, Aml);
-        Length = 8;
+        if (Remaining >= 8)
+        {
+            ACPI_MOVE_64_TO_64 (&Arg->Common.Value.Integer, Aml);
+            Length = 8;
+        }
+        else
+        {
+            Arg->Common.Value.Integer = 0;
+            Length = 0;
+            if (Remaining > 0)
+            {
+                PartialValue = 0;
+                memcpy (&PartialValue, Aml, Remaining);
+                Arg->Common.Value.Integer = PartialValue;
+                Length = Remaining;
+            }
+        }
         break;
 
     case ARGP_CHARLIST:
@@ -598,11 +671,32 @@ AcpiPsGetNextSimpleArg (
         /* Find the null terminator */
 
         Length = 0;
-        while (Aml[Length])
+        while ((Length < Remaining) && Aml[Length])
         {
             Length++;
         }
-        Length++;
+        if (Length < Remaining)
+        {
+            /* Account for the terminating null */
+            Length++;
+        }
+        else
+        {
+            /*
+             * No terminator found - add null at buffer boundary
+             * and report a warning
+             */
+            ACPI_WARNING ((AE_INFO,
+                "Invalid AML string: no null terminator, truncating at offset %u",
+                (UINT32) (Aml - ParserState->Aml)));
+
+            /* Add null terminator at the boundary */
+            if (Remaining > 0)
+            {
+                Aml[Remaining - 1] = 0;
+                Length = Remaining;
+            }
+        }
         break;
 
     case ARGP_NAME:
@@ -659,6 +753,11 @@ AcpiPsGetNextField (
     ASL_CV_CAPTURE_COMMENTS_ONLY (ParserState);
     Aml = ParserState->Aml;
 
+    if (Aml >= ParserState->AmlEnd)
+    {
+        return_PTR (NULL);
+    }
+
     /* Determine field type */
 
     switch (ACPI_GET8 (ParserState->Aml))
@@ -710,6 +809,11 @@ AcpiPsGetNextField (
 
         /* Get the 4-character name */
 
+        if ((ParserState->Aml + ACPI_NAMESEG_SIZE) > ParserState->AmlEnd)
+        {
+            AcpiPsFreeOp (Field);
+            return_PTR (NULL);
+        }
         ACPI_MOVE_32_TO_32 (&Name, ParserState->Aml);
         AcpiPsSetName (Field, Name);
         ParserState->Aml += ACPI_NAMESEG_SIZE;
@@ -756,6 +860,11 @@ AcpiPsGetNextField (
 
         /* Get the two bytes (Type/Attribute) */
 
+        if ((ParserState->Aml + 2) > ParserState->AmlEnd)
+        {
+            AcpiPsFreeOp (Field);
+            return_PTR (NULL);
+        }
         AccessType = ACPI_GET8 (ParserState->Aml);
         ParserState->Aml++;
         AccessAttribute = ACPI_GET8 (ParserState->Aml);
@@ -768,6 +877,11 @@ AcpiPsGetNextField (
 
         if (Opcode == AML_INT_EXTACCESSFIELD_OP)
         {
+            if (ParserState->Aml >= ParserState->AmlEnd)
+            {
+                AcpiPsFreeOp (Field);
+                return_PTR (NULL);
+            }
             AccessLength = ACPI_GET8 (ParserState->Aml);
             ParserState->Aml++;
 
diff --git a/sys/contrib/dev/acpica/components/parser/psloop.c b/sys/contrib/dev/acpica/components/parser/psloop.c
index f4cac83e606..b7e4bac02e0 100644
--- a/sys/contrib/dev/acpica/components/parser/psloop.c
+++ b/sys/contrib/dev/acpica/components/parser/psloop.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -566,7 +566,8 @@ AcpiPsParseLoop (
                     WalkState->Aml = ParserState->Aml;
 
                     ACPI_ERROR ((AE_INFO, "Skipping While/If block"));
-                    if (*WalkState->Aml == AML_ELSE_OP)
+                    if ((WalkState->Aml < ParserState->AmlEnd) &&
+                        (*WalkState->Aml == AML_ELSE_OP))
                     {
                         ACPI_ERROR ((AE_INFO, "Skipping Else block"));
                         WalkState->ParserState.Aml = WalkState->Aml + 1;
diff --git a/sys/contrib/dev/acpica/components/parser/psobject.c b/sys/contrib/dev/acpica/components/parser/psobject.c
index 5457d9d0be7..5039d81c05e 100644
--- a/sys/contrib/dev/acpica/components/parser/psobject.c
+++ b/sys/contrib/dev/acpica/components/parser/psobject.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/psopcode.c b/sys/contrib/dev/acpica/components/parser/psopcode.c
index a317fab3005..a8bba0cefc0 100644
--- a/sys/contrib/dev/acpica/components/parser/psopcode.c
+++ b/sys/contrib/dev/acpica/components/parser/psopcode.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/psopinfo.c b/sys/contrib/dev/acpica/components/parser/psopinfo.c
index 1db32f4e824..8ebcf05f1a6 100644
--- a/sys/contrib/dev/acpica/components/parser/psopinfo.c
+++ b/sys/contrib/dev/acpica/components/parser/psopinfo.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/psparse.c b/sys/contrib/dev/acpica/components/parser/psparse.c
index f294033a003..1cb4dd90503 100644
--- a/sys/contrib/dev/acpica/components/parser/psparse.c
+++ b/sys/contrib/dev/acpica/components/parser/psparse.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/psscope.c b/sys/contrib/dev/acpica/components/parser/psscope.c
index 4f9f496f501..cb1d2abf815 100644
--- a/sys/contrib/dev/acpica/components/parser/psscope.c
+++ b/sys/contrib/dev/acpica/components/parser/psscope.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/pstree.c b/sys/contrib/dev/acpica/components/parser/pstree.c
index b561ba4b072..657d59064de 100644
--- a/sys/contrib/dev/acpica/components/parser/pstree.c
+++ b/sys/contrib/dev/acpica/components/parser/pstree.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/psutils.c b/sys/contrib/dev/acpica/components/parser/psutils.c
index 3c647940e28..8554264f8c3 100644
--- a/sys/contrib/dev/acpica/components/parser/psutils.c
+++ b/sys/contrib/dev/acpica/components/parser/psutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/parser/pswalk.c b/sys/contrib/dev/acpica/components/parser/pswalk.c
index a0941d44cc0..174e6aefec1 100644
--- a/sys/contrib/dev/acpica/components/parser/pswalk.c
+++ b/sys/contrib/dev/acpica/components/parser/pswalk.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -198,7 +198,7 @@ AcpiPsDeleteParseTree (
             {
                 /* This debug option will print the entire parse tree */
 
-                AcpiOsPrintf ("        %*.s%s %p", (Level * 4), " ",
+                AcpiOsPrintf ("        %*s%s %p", (Level * 4), "",
                     AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Op);
 
                 if (Op->Named.AmlOpcode == AML_INT_NAMEPATH_OP)
diff --git a/sys/contrib/dev/acpica/components/parser/psxface.c b/sys/contrib/dev/acpica/components/parser/psxface.c
index 08c1c2bb4f0..2fad9ccd030 100644
--- a/sys/contrib/dev/acpica/components/parser/psxface.c
+++ b/sys/contrib/dev/acpica/components/parser/psxface.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsaddr.c b/sys/contrib/dev/acpica/components/resources/rsaddr.c
index 9074c6dbaa3..bb07db85245 100644
--- a/sys/contrib/dev/acpica/components/resources/rsaddr.c
+++ b/sys/contrib/dev/acpica/components/resources/rsaddr.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rscalc.c b/sys/contrib/dev/acpica/components/resources/rscalc.c
index fc7575c2ddf..daffc696803 100644
--- a/sys/contrib/dev/acpica/components/resources/rscalc.c
+++ b/sys/contrib/dev/acpica/components/resources/rscalc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rscreate.c b/sys/contrib/dev/acpica/components/resources/rscreate.c
index b930ced8396..a625b65194d 100644
--- a/sys/contrib/dev/acpica/components/resources/rscreate.c
+++ b/sys/contrib/dev/acpica/components/resources/rscreate.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsdump.c b/sys/contrib/dev/acpica/components/resources/rsdump.c
index 2f3e996af9a..d485b047d24 100644
--- a/sys/contrib/dev/acpica/components/resources/rsdump.c
+++ b/sys/contrib/dev/acpica/components/resources/rsdump.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsdumpinfo.c b/sys/contrib/dev/acpica/components/resources/rsdumpinfo.c
index 293eeb59692..4238772408f 100644
--- a/sys/contrib/dev/acpica/components/resources/rsdumpinfo.c
+++ b/sys/contrib/dev/acpica/components/resources/rsdumpinfo.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsinfo.c b/sys/contrib/dev/acpica/components/resources/rsinfo.c
index 7a1bb07abb9..222ef95c600 100644
--- a/sys/contrib/dev/acpica/components/resources/rsinfo.c
+++ b/sys/contrib/dev/acpica/components/resources/rsinfo.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsio.c b/sys/contrib/dev/acpica/components/resources/rsio.c
index 46d9b2f8aa4..b51cb2ed18d 100644
--- a/sys/contrib/dev/acpica/components/resources/rsio.c
+++ b/sys/contrib/dev/acpica/components/resources/rsio.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsirq.c b/sys/contrib/dev/acpica/components/resources/rsirq.c
index 80482eb097d..a1c32a13ffb 100644
--- a/sys/contrib/dev/acpica/components/resources/rsirq.c
+++ b/sys/contrib/dev/acpica/components/resources/rsirq.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rslist.c b/sys/contrib/dev/acpica/components/resources/rslist.c
index 2de70ad4fc5..0f6c6ad2ac4 100644
--- a/sys/contrib/dev/acpica/components/resources/rslist.c
+++ b/sys/contrib/dev/acpica/components/resources/rslist.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsmemory.c b/sys/contrib/dev/acpica/components/resources/rsmemory.c
index 0430379a0f0..7a274e6695b 100644
--- a/sys/contrib/dev/acpica/components/resources/rsmemory.c
+++ b/sys/contrib/dev/acpica/components/resources/rsmemory.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsmisc.c b/sys/contrib/dev/acpica/components/resources/rsmisc.c
index 725a130a2ce..72165acfffa 100644
--- a/sys/contrib/dev/acpica/components/resources/rsmisc.c
+++ b/sys/contrib/dev/acpica/components/resources/rsmisc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsserial.c b/sys/contrib/dev/acpica/components/resources/rsserial.c
index ab09939850c..55fb82d8fff 100644
--- a/sys/contrib/dev/acpica/components/resources/rsserial.c
+++ b/sys/contrib/dev/acpica/components/resources/rsserial.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -447,7 +447,7 @@ ACPI_RSCONVERT_INFO     AcpiRsConvertCsi2SerialBus[14] =
  *
  ******************************************************************************/
 
-ACPI_RSCONVERT_INFO     AcpiRsConvertI2cSerialBus[17] =
+ACPI_RSCONVERT_INFO     AcpiRsConvertI2cSerialBus[18] =
 {
     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_SERIAL_BUS,
                         ACPI_RS_SIZE (ACPI_RESOURCE_I2C_SERIALBUS),
@@ -515,6 +515,11 @@ ACPI_RSCONVERT_INFO     AcpiRsConvertI2cSerialBus[17] =
                         AML_OFFSET (I2cSerialBus.TypeSpecificFlags),
                         0},
 
+    /* Read LVR from Type Specific Flags, bits[15:8] */
+    {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.I2cSerialBus.Lvr),
+                        AML_OFFSET (I2cSerialBus.TypeSpecificFlags) + 1,
+                        1},
+
     {ACPI_RSC_MOVE32,   ACPI_RS_OFFSET (Data.I2cSerialBus.ConnectionSpeed),
                         AML_OFFSET (I2cSerialBus.ConnectionSpeed),
                         1},
diff --git a/sys/contrib/dev/acpica/components/resources/rsutils.c b/sys/contrib/dev/acpica/components/resources/rsutils.c
index cc89fcfbb35..e9e797e43e1 100644
--- a/sys/contrib/dev/acpica/components/resources/rsutils.c
+++ b/sys/contrib/dev/acpica/components/resources/rsutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/resources/rsxface.c b/sys/contrib/dev/acpica/components/resources/rsxface.c
index 89cc58864ea..ada8a44448f 100644
--- a/sys/contrib/dev/acpica/components/resources/rsxface.c
+++ b/sys/contrib/dev/acpica/components/resources/rsxface.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbdata.c b/sys/contrib/dev/acpica/components/tables/tbdata.c
index 46c7724bdda..b36e971fcce 100644
--- a/sys/contrib/dev/acpica/components/tables/tbdata.c
+++ b/sys/contrib/dev/acpica/components/tables/tbdata.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbfadt.c b/sys/contrib/dev/acpica/components/tables/tbfadt.c
index 70490b5d0e7..8fea0572eb7 100644
--- a/sys/contrib/dev/acpica/components/tables/tbfadt.c
+++ b/sys/contrib/dev/acpica/components/tables/tbfadt.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -736,8 +736,11 @@ AcpiTbConvertFadt (
                  * Note: If the legacy length field is > 0xFF bits, ignore
                  * this check. (GPE registers can be larger than the
                  * 64-bit GAS structure can accommodate, 0xFF bits).
+                 * Also skip if BitWidth is 0, indicating the 64-bit field
+                 * was not populated - legacy length will be used instead.
                  */
                 if ((ACPI_MUL_8 (Length) <= ACPI_UINT8_MAX) &&
+                    (Address64->BitWidth != 0) &&
                     (Address64->BitWidth != ACPI_MUL_8 (Length)))
                 {
                     ACPI_BIOS_WARNING ((AE_INFO,
diff --git a/sys/contrib/dev/acpica/components/tables/tbfind.c b/sys/contrib/dev/acpica/components/tables/tbfind.c
index e497cca9b55..070debef1fa 100644
--- a/sys/contrib/dev/acpica/components/tables/tbfind.c
+++ b/sys/contrib/dev/acpica/components/tables/tbfind.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbinstal.c b/sys/contrib/dev/acpica/components/tables/tbinstal.c
index 309ec5b6847..aa508042910 100644
--- a/sys/contrib/dev/acpica/components/tables/tbinstal.c
+++ b/sys/contrib/dev/acpica/components/tables/tbinstal.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbprint.c b/sys/contrib/dev/acpica/components/tables/tbprint.c
index cc4badd8480..01dee2953fc 100644
--- a/sys/contrib/dev/acpica/components/tables/tbprint.c
+++ b/sys/contrib/dev/acpica/components/tables/tbprint.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbutils.c b/sys/contrib/dev/acpica/components/tables/tbutils.c
index 61d8ac597af..db18a24413f 100644
--- a/sys/contrib/dev/acpica/components/tables/tbutils.c
+++ b/sys/contrib/dev/acpica/components/tables/tbutils.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbxface.c b/sys/contrib/dev/acpica/components/tables/tbxface.c
index 0b16c0a9ebe..7e732809b6a 100644
--- a/sys/contrib/dev/acpica/components/tables/tbxface.c
+++ b/sys/contrib/dev/acpica/components/tables/tbxface.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbxfload.c b/sys/contrib/dev/acpica/components/tables/tbxfload.c
index af49869d626..f3c8d0b900a 100644
--- a/sys/contrib/dev/acpica/components/tables/tbxfload.c
+++ b/sys/contrib/dev/acpica/components/tables/tbxfload.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/tables/tbxfroot.c b/sys/contrib/dev/acpica/components/tables/tbxfroot.c
index 7c444bda9c8..7e4b05abe60 100644
--- a/sys/contrib/dev/acpica/components/tables/tbxfroot.c
+++ b/sys/contrib/dev/acpica/components/tables/tbxfroot.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utaddress.c b/sys/contrib/dev/acpica/components/utilities/utaddress.c
index 7ea0ff3e91b..d7296a08f6e 100644
--- a/sys/contrib/dev/acpica/components/utilities/utaddress.c
+++ b/sys/contrib/dev/acpica/components/utilities/utaddress.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utalloc.c b/sys/contrib/dev/acpica/components/utilities/utalloc.c
index 0dfdec633c2..7b7d86a7268 100644
--- a/sys/contrib/dev/acpica/components/utilities/utalloc.c
+++ b/sys/contrib/dev/acpica/components/utilities/utalloc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utascii.c b/sys/contrib/dev/acpica/components/utilities/utascii.c
index cf64bdee02d..92535512118 100644
--- a/sys/contrib/dev/acpica/components/utilities/utascii.c
+++ b/sys/contrib/dev/acpica/components/utilities/utascii.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utbuffer.c b/sys/contrib/dev/acpica/components/utilities/utbuffer.c
index b22530412b2..c72b3065e03 100644
--- a/sys/contrib/dev/acpica/components/utilities/utbuffer.c
+++ b/sys/contrib/dev/acpica/components/utilities/utbuffer.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utcache.c b/sys/contrib/dev/acpica/components/utilities/utcache.c
index 23215469630..271920a6913 100644
--- a/sys/contrib/dev/acpica/components/utilities/utcache.c
+++ b/sys/contrib/dev/acpica/components/utilities/utcache.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utcksum.c b/sys/contrib/dev/acpica/components/utilities/utcksum.c
index 50f8f80570e..c9d137a7ef3 100644
--- a/sys/contrib/dev/acpica/components/utilities/utcksum.c
+++ b/sys/contrib/dev/acpica/components/utilities/utcksum.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utcopy.c b/sys/contrib/dev/acpica/components/utilities/utcopy.c
index fd4d6922a1f..3a3f4d31738 100644
--- a/sys/contrib/dev/acpica/components/utilities/utcopy.c
+++ b/sys/contrib/dev/acpica/components/utilities/utcopy.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -918,7 +918,16 @@ AcpiUtCopySimpleObject (
             break;
         }
 
-        AcpiUtAddReference (SourceDesc->Reference.Object);
+        /*
+         * Local/Arg/Debug references do not have a valid Object pointer
+         * that can be referenced
+         */
+        if ((SourceDesc->Reference.Class != ACPI_REFCLASS_LOCAL) &&
+            (SourceDesc->Reference.Class != ACPI_REFCLASS_ARG) &&
+            (SourceDesc->Reference.Class != ACPI_REFCLASS_DEBUG))
+        {
+            AcpiUtAddReference (SourceDesc->Reference.Object);
+        }
         break;
 
     case ACPI_TYPE_REGION:
diff --git a/sys/contrib/dev/acpica/components/utilities/utdebug.c b/sys/contrib/dev/acpica/components/utilities/utdebug.c
index 90b8e246a1a..1b6b56fca02 100644
--- a/sys/contrib/dev/acpica/components/utilities/utdebug.c
+++ b/sys/contrib/dev/acpica/components/utilities/utdebug.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utdecode.c b/sys/contrib/dev/acpica/components/utilities/utdecode.c
index 00a2de9e9a5..85a948476d0 100644
--- a/sys/contrib/dev/acpica/components/utilities/utdecode.c
+++ b/sys/contrib/dev/acpica/components/utilities/utdecode.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utdelete.c b/sys/contrib/dev/acpica/components/utilities/utdelete.c
index e88cc736990..2668398ac4c 100644
--- a/sys/contrib/dev/acpica/components/utilities/utdelete.c
+++ b/sys/contrib/dev/acpica/components/utilities/utdelete.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/uterror.c b/sys/contrib/dev/acpica/components/utilities/uterror.c
index 1537f69a2a2..1eec656e0c5 100644
--- a/sys/contrib/dev/acpica/components/utilities/uterror.c
+++ b/sys/contrib/dev/acpica/components/utilities/uterror.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/uteval.c b/sys/contrib/dev/acpica/components/utilities/uteval.c
index 53f84306217..ab0109c88af 100644
--- a/sys/contrib/dev/acpica/components/utilities/uteval.c
+++ b/sys/contrib/dev/acpica/components/utilities/uteval.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utexcep.c b/sys/contrib/dev/acpica/components/utilities/utexcep.c
index b3e606ceef5..c1bd798f146 100644
--- a/sys/contrib/dev/acpica/components/utilities/utexcep.c
+++ b/sys/contrib/dev/acpica/components/utilities/utexcep.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utglobal.c b/sys/contrib/dev/acpica/components/utilities/utglobal.c
index 95d679a2074..ec24f1f1f9a 100644
--- a/sys/contrib/dev/acpica/components/utilities/utglobal.c
+++ b/sys/contrib/dev/acpica/components/utilities/utglobal.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/uthex.c b/sys/contrib/dev/acpica/components/utilities/uthex.c
index 2806f1c4814..751f7af6501 100644
--- a/sys/contrib/dev/acpica/components/utilities/uthex.c
+++ b/sys/contrib/dev/acpica/components/utilities/uthex.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utids.c b/sys/contrib/dev/acpica/components/utilities/utids.c
index 3dfb908302c..0fffb8377c8 100644
--- a/sys/contrib/dev/acpica/components/utilities/utids.c
+++ b/sys/contrib/dev/acpica/components/utilities/utids.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utinit.c b/sys/contrib/dev/acpica/components/utilities/utinit.c
index b5a4b7e7d93..a32361a53e1 100644
--- a/sys/contrib/dev/acpica/components/utilities/utinit.c
+++ b/sys/contrib/dev/acpica/components/utilities/utinit.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utlock.c b/sys/contrib/dev/acpica/components/utilities/utlock.c
index a06b27525cc..4f4c3036bc4 100644
--- a/sys/contrib/dev/acpica/components/utilities/utlock.c
+++ b/sys/contrib/dev/acpica/components/utilities/utlock.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utmath.c b/sys/contrib/dev/acpica/components/utilities/utmath.c
index 48bbe8f3d8c..c9c5bd3f2a3 100644
--- a/sys/contrib/dev/acpica/components/utilities/utmath.c
+++ b/sys/contrib/dev/acpica/components/utilities/utmath.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utmisc.c b/sys/contrib/dev/acpica/components/utilities/utmisc.c
index 13dffc6674d..4723349ac6f 100644
--- a/sys/contrib/dev/acpica/components/utilities/utmisc.c
+++ b/sys/contrib/dev/acpica/components/utilities/utmisc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utmutex.c b/sys/contrib/dev/acpica/components/utilities/utmutex.c
index b0b26458818..ba1d477b0be 100644
--- a/sys/contrib/dev/acpica/components/utilities/utmutex.c
+++ b/sys/contrib/dev/acpica/components/utilities/utmutex.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utnonansi.c b/sys/contrib/dev/acpica/components/utilities/utnonansi.c
index f8b3a29e328..e6cacbad00e 100644
--- a/sys/contrib/dev/acpica/components/utilities/utnonansi.c
+++ b/sys/contrib/dev/acpica/components/utilities/utnonansi.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utobject.c b/sys/contrib/dev/acpica/components/utilities/utobject.c
index 6988afdcbae..3e388dd1a96 100644
--- a/sys/contrib/dev/acpica/components/utilities/utobject.c
+++ b/sys/contrib/dev/acpica/components/utilities/utobject.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utosi.c b/sys/contrib/dev/acpica/components/utilities/utosi.c
index 7118313f7b1..fc886276a3a 100644
--- a/sys/contrib/dev/acpica/components/utilities/utosi.c
+++ b/sys/contrib/dev/acpica/components/utilities/utosi.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utownerid.c b/sys/contrib/dev/acpica/components/utilities/utownerid.c
index 7e39b7851af..40139f481c8 100644
--- a/sys/contrib/dev/acpica/components/utilities/utownerid.c
+++ b/sys/contrib/dev/acpica/components/utilities/utownerid.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utpredef.c b/sys/contrib/dev/acpica/components/utilities/utpredef.c
index 23e6606d167..3131e16f046 100644
--- a/sys/contrib/dev/acpica/components/utilities/utpredef.c
+++ b/sys/contrib/dev/acpica/components/utilities/utpredef.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utresdecode.c b/sys/contrib/dev/acpica/components/utilities/utresdecode.c
index d14259911a0..8ff5dd12cc5 100644
--- a/sys/contrib/dev/acpica/components/utilities/utresdecode.c
+++ b/sys/contrib/dev/acpica/components/utilities/utresdecode.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utresrc.c b/sys/contrib/dev/acpica/components/utilities/utresrc.c
index 109395435d4..5a1220c6ee7 100644
--- a/sys/contrib/dev/acpica/components/utilities/utresrc.c
+++ b/sys/contrib/dev/acpica/components/utilities/utresrc.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -322,6 +322,29 @@ AcpiUtWalkAmlResources (
 
     while (Aml < EndAml)
     {
+        /*
+         * Validate that the remaining buffer space can hold enough
+         * bytes to safely access fields during validation.
+         * For large resource descriptors (bit 7 set), we need enough
+         * bytes to access the Type field in SerialBus resources.
+         * Small resource descriptors only need sizeof(AML_RESOURCE_END_TAG).
+         */
+        if ((ACPI_SIZE) (EndAml - Aml) < sizeof (AML_RESOURCE_END_TAG))
+        {
+            return_ACPI_STATUS (AE_AML_BUFFER_LENGTH);
+        }
+
+        /*
+         * For large resource descriptors, ensure enough space for
+         * the header plus SerialBus Type field access.
+         */
+        if ((ACPI_GET8 (Aml) & ACPI_RESOURCE_NAME_LARGE) &&
+            ((ACPI_SIZE) (EndAml - Aml) <
+                ACPI_OFFSET (AML_RESOURCE_COMMON_SERIALBUS, Type) + 1))
+        {
+            return_ACPI_STATUS (AE_AML_BUFFER_LENGTH);
+        }
+
         /* Validate the Resource Type and Resource Length */
 
         Status = AcpiUtValidateResource (WalkState, Aml, &ResourceIndex);
@@ -338,6 +361,15 @@ AcpiUtWalkAmlResources (
 
         Length = AcpiUtGetDescriptorLength (Aml);
 
+        /*
+         * Validate that the descriptor length doesn't exceed the
+         * remaining buffer size to prevent reading beyond the end.
+         */
+        if (Length > (ACPI_SIZE) (EndAml - Aml))
+        {
+            return_ACPI_STATUS (AE_AML_BUFFER_LENGTH);
+        }
+
         /* Invoke the user function */
 
         if (UserFunction)
diff --git a/sys/contrib/dev/acpica/components/utilities/utstate.c b/sys/contrib/dev/acpica/components/utilities/utstate.c
index 02fec7d15bf..5789cd3309d 100644
--- a/sys/contrib/dev/acpica/components/utilities/utstate.c
+++ b/sys/contrib/dev/acpica/components/utilities/utstate.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utstring.c b/sys/contrib/dev/acpica/components/utilities/utstring.c
index 59e34e7c8a7..5ece4de3c50 100644
--- a/sys/contrib/dev/acpica/components/utilities/utstring.c
+++ b/sys/contrib/dev/acpica/components/utilities/utstring.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utstrsuppt.c b/sys/contrib/dev/acpica/components/utilities/utstrsuppt.c
index 1537d8a0294..4d54ab287e9 100644
--- a/sys/contrib/dev/acpica/components/utilities/utstrsuppt.c
+++ b/sys/contrib/dev/acpica/components/utilities/utstrsuppt.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utstrtoul64.c b/sys/contrib/dev/acpica/components/utilities/utstrtoul64.c
index 2683c37c35d..75659ef3d9c 100644
--- a/sys/contrib/dev/acpica/components/utilities/utstrtoul64.c
+++ b/sys/contrib/dev/acpica/components/utilities/utstrtoul64.c
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/uttrack.c b/sys/contrib/dev/acpica/components/utilities/uttrack.c
index 2c60c1c7b1f..362018ecf33 100644
--- a/sys/contrib/dev/acpica/components/utilities/uttrack.c
+++ b/sys/contrib/dev/acpica/components/utilities/uttrack.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utuuid.c b/sys/contrib/dev/acpica/components/utilities/utuuid.c
index 669cce69b1f..cc633e84aa4 100644
--- a/sys/contrib/dev/acpica/components/utilities/utuuid.c
+++ b/sys/contrib/dev/acpica/components/utilities/utuuid.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utxface.c b/sys/contrib/dev/acpica/components/utilities/utxface.c
index 9b5f8b3c9d8..aee0a5559f4 100644
--- a/sys/contrib/dev/acpica/components/utilities/utxface.c
+++ b/sys/contrib/dev/acpica/components/utilities/utxface.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utxferror.c b/sys/contrib/dev/acpica/components/utilities/utxferror.c
index 08a3ab986c3..1b5b0812ea1 100644
--- a/sys/contrib/dev/acpica/components/utilities/utxferror.c
+++ b/sys/contrib/dev/acpica/components/utilities/utxferror.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utxfinit.c b/sys/contrib/dev/acpica/components/utilities/utxfinit.c
index f295471031d..c1d23d4138c 100644
--- a/sys/contrib/dev/acpica/components/utilities/utxfinit.c
+++ b/sys/contrib/dev/acpica/components/utilities/utxfinit.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/components/utilities/utxfmutex.c b/sys/contrib/dev/acpica/components/utilities/utxfmutex.c
index 595904977f2..7208ac78c76 100644
--- a/sys/contrib/dev/acpica/components/utilities/utxfmutex.c
+++ b/sys/contrib/dev/acpica/components/utilities/utxfmutex.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acapps.h b/sys/contrib/dev/acpica/include/acapps.h
index ccaea124afb..be9bfdfc485 100644
--- a/sys/contrib/dev/acpica/include/acapps.h
+++ b/sys/contrib/dev/acpica/include/acapps.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -159,7 +159,7 @@
 /* Common info for tool signons */
 
 #define ACPICA_NAME                 "Intel ACPI Component Architecture"
-#define ACPICA_COPYRIGHT            "Copyright (c) 2000 - 2025 Intel Corporation"
+#define ACPICA_COPYRIGHT            "Copyright (c) 2000 - 2026 Intel Corporation"
 
 #if ACPI_MACHINE_WIDTH == 64
 #define ACPI_WIDTH          " (64-bit version)"
diff --git a/sys/contrib/dev/acpica/include/acbuffer.h b/sys/contrib/dev/acpica/include/acbuffer.h
index 682ddcd7262..2a88d9789c5 100644
--- a/sys/contrib/dev/acpica/include/acbuffer.h
+++ b/sys/contrib/dev/acpica/include/acbuffer.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acclib.h b/sys/contrib/dev/acpica/include/acclib.h
index 3960ffd2582..d6c81823f35 100644
--- a/sys/contrib/dev/acpica/include/acclib.h
+++ b/sys/contrib/dev/acpica/include/acclib.h
@@ -9,7 +9,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/accommon.h b/sys/contrib/dev/acpica/include/accommon.h
index 10a39803842..4ac4c0db87d 100644
--- a/sys/contrib/dev/acpica/include/accommon.h
+++ b/sys/contrib/dev/acpica/include/accommon.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acconfig.h b/sys/contrib/dev/acpica/include/acconfig.h
index 983dc302118..e139f583700 100644
--- a/sys/contrib/dev/acpica/include/acconfig.h
+++ b/sys/contrib/dev/acpica/include/acconfig.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acconvert.h b/sys/contrib/dev/acpica/include/acconvert.h
index 9dedc51a7ef..ac2e3f9c3a3 100644
--- a/sys/contrib/dev/acpica/include/acconvert.h
+++ b/sys/contrib/dev/acpica/include/acconvert.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acdebug.h b/sys/contrib/dev/acpica/include/acdebug.h
index 63f39051a8a..4a6b392d8d3 100644
--- a/sys/contrib/dev/acpica/include/acdebug.h
+++ b/sys/contrib/dev/acpica/include/acdebug.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acdisasm.h b/sys/contrib/dev/acpica/include/acdisasm.h
index 29ce0d536df..7f055125bbd 100644
--- a/sys/contrib/dev/acpica/include/acdisasm.h
+++ b/sys/contrib/dev/acpica/include/acdisasm.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -467,6 +467,11 @@ extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDrtm0a[];
 extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDrtm1[];
 extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDrtm1a[];
 extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDrtm2[];
+extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDtpr[];
+extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDtprInstance[];
+extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDtprArr[];
+extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDtprSerializeReq0[];
+extern ACPI_DMTABLE_INFO        AcpiDmTableInfoDtprSerializeReq1[];
 extern ACPI_DMTABLE_INFO        AcpiDmTableInfoEcdt[];
 extern ACPI_DMTABLE_INFO        AcpiDmTableInfoEinj[];
 extern ACPI_DMTABLE_INFO        AcpiDmTableInfoEinj0[];
@@ -873,6 +878,10 @@ void
 AcpiDmDumpDrtm (
     ACPI_TABLE_HEADER       *Table);
 
+void
+AcpiDmDumpDtpr (
+    ACPI_TABLE_HEADER       *Table);
+
 void
 AcpiDmDumpEinj (
     ACPI_TABLE_HEADER       *Table);
diff --git a/sys/contrib/dev/acpica/include/acdispat.h b/sys/contrib/dev/acpica/include/acdispat.h
index 0573e5817df..4d80aeba95c 100644
--- a/sys/contrib/dev/acpica/include/acdispat.h
+++ b/sys/contrib/dev/acpica/include/acdispat.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acevents.h b/sys/contrib/dev/acpica/include/acevents.h
index 22eff360559..c765abf7ffb 100644
--- a/sys/contrib/dev/acpica/include/acevents.h
+++ b/sys/contrib/dev/acpica/include/acevents.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acexcep.h b/sys/contrib/dev/acpica/include/acexcep.h
index 7216e0d4914..643426fb47e 100644
--- a/sys/contrib/dev/acpica/include/acexcep.h
+++ b/sys/contrib/dev/acpica/include/acexcep.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acglobal.h b/sys/contrib/dev/acpica/include/acglobal.h
index 02167c3af09..b77f5a0d044 100644
--- a/sys/contrib/dev/acpica/include/acglobal.h
+++ b/sys/contrib/dev/acpica/include/acglobal.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/achware.h b/sys/contrib/dev/acpica/include/achware.h
index 46efffb5070..fa20fcd8092 100644
--- a/sys/contrib/dev/acpica/include/achware.h
+++ b/sys/contrib/dev/acpica/include/achware.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acinterp.h b/sys/contrib/dev/acpica/include/acinterp.h
index b7f9e8f615e..c0d372e52c6 100644
--- a/sys/contrib/dev/acpica/include/acinterp.h
+++ b/sys/contrib/dev/acpica/include/acinterp.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/aclocal.h b/sys/contrib/dev/acpica/include/aclocal.h
index ff18d617f79..d9f126f0f6a 100644
--- a/sys/contrib/dev/acpica/include/aclocal.h
+++ b/sys/contrib/dev/acpica/include/aclocal.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -332,6 +332,7 @@ typedef struct acpi_namespace_node
 #define ANOBJ_IS_EXTERNAL               0x08    /* iASL only: This object created via External() */
 #define ANOBJ_METHOD_NO_RETVAL          0x10    /* iASL only: Method has no return value */
 #define ANOBJ_METHOD_SOME_NO_RETVAL     0x20    /* iASL only: Method has at least one return value */
+#define ANOBJ_IS_ALIAS                  0x40    /* iASL only: Node is an alias to another node */
 #define ANOBJ_IS_REFERENCED             0x80    /* iASL only: Object was referenced */
 
 
diff --git a/sys/contrib/dev/acpica/include/acmacros.h b/sys/contrib/dev/acpica/include/acmacros.h
index eabe403b399..03ebb8848b5 100644
--- a/sys/contrib/dev/acpica/include/acmacros.h
+++ b/sys/contrib/dev/acpica/include/acmacros.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acnames.h b/sys/contrib/dev/acpica/include/acnames.h
index 070e318fb8c..24915ab7c40 100644
--- a/sys/contrib/dev/acpica/include/acnames.h
+++ b/sys/contrib/dev/acpica/include/acnames.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acnamesp.h b/sys/contrib/dev/acpica/include/acnamesp.h
index 41f704b3d74..cc6b5989436 100644
--- a/sys/contrib/dev/acpica/include/acnamesp.h
+++ b/sys/contrib/dev/acpica/include/acnamesp.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acobject.h b/sys/contrib/dev/acpica/include/acobject.h
index 95be1a95b4c..739b981b43e 100644
--- a/sys/contrib/dev/acpica/include/acobject.h
+++ b/sys/contrib/dev/acpica/include/acobject.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acopcode.h b/sys/contrib/dev/acpica/include/acopcode.h
index c8d17c3554d..38e18f8593e 100644
--- a/sys/contrib/dev/acpica/include/acopcode.h
+++ b/sys/contrib/dev/acpica/include/acopcode.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acoutput.h b/sys/contrib/dev/acpica/include/acoutput.h
index 49a466dba33..c0c37ef611f 100644
--- a/sys/contrib/dev/acpica/include/acoutput.h
+++ b/sys/contrib/dev/acpica/include/acoutput.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acparser.h b/sys/contrib/dev/acpica/include/acparser.h
index 8b3d3702f4a..baf43876fb7 100644
--- a/sys/contrib/dev/acpica/include/acparser.h
+++ b/sys/contrib/dev/acpica/include/acparser.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acpi.h b/sys/contrib/dev/acpica/include/acpi.h
index 07e5e93e230..29081e0ef26 100644
--- a/sys/contrib/dev/acpica/include/acpi.h
+++ b/sys/contrib/dev/acpica/include/acpi.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acpiosxf.h b/sys/contrib/dev/acpica/include/acpiosxf.h
index 77a22eee744..56112270b90 100644
--- a/sys/contrib/dev/acpica/include/acpiosxf.h
+++ b/sys/contrib/dev/acpica/include/acpiosxf.h
@@ -10,7 +10,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acpixf.h b/sys/contrib/dev/acpica/include/acpixf.h
index 00f0c08d478..b19f7b334b5 100644
--- a/sys/contrib/dev/acpica/include/acpixf.h
+++ b/sys/contrib/dev/acpica/include/acpixf.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -154,7 +154,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20251212 
+#define ACPI_CA_VERSION                 0x20260408 
 
 #include <contrib/dev/acpica/include/acconfig.h>
 #include <contrib/dev/acpica/include/actypes.h>
diff --git a/sys/contrib/dev/acpica/include/acpredef.h b/sys/contrib/dev/acpica/include/acpredef.h
index 8cf6cf2dfca..684c5a553e1 100644
--- a/sys/contrib/dev/acpica/include/acpredef.h
+++ b/sys/contrib/dev/acpica/include/acpredef.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -522,7 +522,7 @@ const ACPI_PREDEFINED_INFO          AcpiGbl_PredefinedMethods[] =
 
     {{"_CPC",   METHOD_0ARGS,
                 METHOD_RETURNS (ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Ints/Bufs) */
-                    PACKAGE_INFO (ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER, 0,0,0,0),
+                    PACKAGE_INFO (ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER | ACPI_RTYPE_PACKAGE, 0,0,0,0),
 
     {{"_CR3",   METHOD_0ARGS,                          /* ACPI 6.0 */
                 METHOD_RETURNS (ACPI_RTYPE_INTEGER)}},
@@ -587,7 +587,7 @@ const ACPI_PREDEFINED_INFO          AcpiGbl_PredefinedMethods[] =
                 METHOD_RETURNS (ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each: 1 Buf, 1 Pkg */
                     PACKAGE_INFO (ACPI_PTYPE2_UUID_PAIR, ACPI_RTYPE_BUFFER, 1, ACPI_RTYPE_PACKAGE, 1,0),
 
-    {{"_DSM",   METHOD_4ARGS (ACPI_TYPE_BUFFER, ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER, ACPI_TYPE_ANY | ACPI_TYPE_PACKAGE) | ARG_COUNT_IS_MINIMUM,
+    {{"_DSM",   METHOD_4ARGS (ACPI_TYPE_BUFFER, ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER, ACPI_TYPE_PACKAGE | ACPI_TYPE_ANY) | ARG_COUNT_IS_MINIMUM,
                 METHOD_RETURNS (ACPI_RTYPE_ALL)}}, /* Must return a value, but it can be of any type */
 
     {{"_DSS",   METHOD_1ARGS (ACPI_TYPE_INTEGER),
diff --git a/sys/contrib/dev/acpica/include/acresrc.h b/sys/contrib/dev/acpica/include/acresrc.h
index 2e3c7d3d1d4..781ecaa246d 100644
--- a/sys/contrib/dev/acpica/include/acresrc.h
+++ b/sys/contrib/dev/acpica/include/acresrc.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acrestyp.h b/sys/contrib/dev/acpica/include/acrestyp.h
index ab48a3911ae..e9a20fa23e2 100644
--- a/sys/contrib/dev/acpica/include/acrestyp.h
+++ b/sys/contrib/dev/acpica/include/acrestyp.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -641,6 +641,7 @@ typedef struct acpi_resource_i2c_serialbus
     UINT8                           AccessMode;
     UINT16                          SlaveAddress;
     UINT32                          ConnectionSpeed;
+    UINT8                           Lvr;
 
 } ACPI_RESOURCE_I2C_SERIALBUS;
 
diff --git a/sys/contrib/dev/acpica/include/acstruct.h b/sys/contrib/dev/acpica/include/acstruct.h
index b1c54f09fe5..3c6ebfc2d17 100644
--- a/sys/contrib/dev/acpica/include/acstruct.h
+++ b/sys/contrib/dev/acpica/include/acstruct.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/actables.h b/sys/contrib/dev/acpica/include/actables.h
index 6f2cacbde3a..edf3b80afc3 100644
--- a/sys/contrib/dev/acpica/include/actables.h
+++ b/sys/contrib/dev/acpica/include/actables.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/actbinfo.h b/sys/contrib/dev/acpica/include/actbinfo.h
index 0d80f67b698..ff61c1861ee 100644
--- a/sys/contrib/dev/acpica/include/actbinfo.h
+++ b/sys/contrib/dev/acpica/include/actbinfo.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -168,6 +168,7 @@
 #define ACPI_DBGP_OFFSET(f)             (UINT16) ACPI_OFFSET (ACPI_TABLE_DBGP,f)
 #define ACPI_DMAR_OFFSET(f)             (UINT16) ACPI_OFFSET (ACPI_TABLE_DMAR,f)
 #define ACPI_DRTM_OFFSET(f)             (UINT16) ACPI_OFFSET (ACPI_TABLE_DRTM,f)
+#define ACPI_DTPR_OFFSET(f)             (UINT16) ACPI_OFFSET (ACPI_TABLE_DTPR,f)
 #define ACPI_ECDT_OFFSET(f)             (UINT16) ACPI_OFFSET (ACPI_TABLE_ECDT,f)
 #define ACPI_EINJ_OFFSET(f)             (UINT16) ACPI_OFFSET (ACPI_TABLE_EINJ,f)
 #define ACPI_ERDT_OFFSET(f)             (UINT16) ACPI_OFFSET (ACPI_TABLE_ERDT,f)
@@ -284,6 +285,10 @@
 #define ACPI_DRTM1_OFFSET(f)            (UINT16) ACPI_OFFSET (ACPI_DRTM_RESOURCE_LIST,f)
 #define ACPI_DRTM1a_OFFSET(f)           (UINT16) ACPI_OFFSET (ACPI_DRTM_RESOURCE,f)
 #define ACPI_DRTM2_OFFSET(f)            (UINT16) ACPI_OFFSET (ACPI_DRTM_DPS_ID,f)
+#define ACPI_DTPR_INST_OFFSET(f)        (UINT16) ACPI_OFFSET (ACPI_TPR_INSTANCE,f)
+#define ACPI_DTPR_ARR_OFFSET(f)         (UINT16) ACPI_OFFSET (ACPI_TPR_ARRAY,f)
+#define ACPI_DTPR_AUX_SR_OFFSET(f)      (UINT16) ACPI_OFFSET (ACPI_TPR_AUX_SR,f)
+#define ACPI_DTPR_SR_OFFSET(f)          (UINT16) ACPI_OFFSET (ACPI_TPR_SERIALIZE_REQUEST,f)
 #define ACPI_EINJ0_OFFSET(f)            (UINT16) ACPI_OFFSET (ACPI_WHEA_HEADER,f)
 #define ACPI_ERDT_HDR_OFFSET(f)         (UINT16) ACPI_OFFSET (ACPI_SUBTBL_HDR_16,f)
 #define ACPI_ERDT_CACD_OFFSET(f)        (UINT16) ACPI_OFFSET (ACPI_ERDT_CACD,f)
@@ -496,6 +501,9 @@
 #define ACPI_DMAR0_FLAG_OFFSET(f,o)     ACPI_FLAG_OFFSET (ACPI_DMAR_HARDWARE_UNIT,f,o)
 #define ACPI_DRTM_FLAG_OFFSET(f,o)      ACPI_FLAG_OFFSET (ACPI_TABLE_DRTM,f,o)
 #define ACPI_DRTM1a_FLAG_OFFSET(f,o)    ACPI_FLAG_OFFSET (ACPI_DRTM_RESOURCE,f,o)
+#define ACPI_DTPR_BASE_FLAG_OFFSET(f,o) ACPI_FLAG_OFFSET (ACPI_TPRN_BASE_REG,f,o)
+#define ACPI_DTPR_LIM_FLAG_OFFSET(f,o)  ACPI_FLAG_OFFSET (ACPI_TPRN_LIMIT_REG,f,o)
+#define ACPI_DTPR_SR_FLAG_OFFSET(f,o)   ACPI_FLAG_OFFSET (ACPI_TPR_SERIALIZE_REQUEST,f,o)
 #define ACPI_ERDT_RMDD_FLAG_OFFSET(f,o) ACPI_FLAG_OFFSET (ACPI_ERDT_RMDD,f,o)
 #define ACPI_FADT_FLAG_OFFSET(f,o)      ACPI_FLAG_OFFSET (ACPI_TABLE_FADT,f,o)
 #define ACPI_FACS_FLAG_OFFSET(f,o)      ACPI_FLAG_OFFSET (ACPI_TABLE_FACS,f,o)
diff --git a/sys/contrib/dev/acpica/include/actbl.h b/sys/contrib/dev/acpica/include/actbl.h
index ae52bd452c9..6e0ebda54e4 100644
--- a/sys/contrib/dev/acpica/include/actbl.h
+++ b/sys/contrib/dev/acpica/include/actbl.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/actbl1.h b/sys/contrib/dev/acpica/include/actbl1.h
index 6e7937999a5..72a5c47d99c 100644
--- a/sys/contrib/dev/acpica/include/actbl1.h
+++ b/sys/contrib/dev/acpica/include/actbl1.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -181,6 +181,7 @@
 #define ACPI_SIG_DBGP           "DBGP"      /* Debug Port table */
 #define ACPI_SIG_DMAR           "DMAR"      /* DMA Remapping table */
 #define ACPI_SIG_DRTM           "DRTM"      /* Dynamic Root of Trust for Measurement table */
+#define ACPI_SIG_DTPR           "DTPR"      /* DMA TXT Protection Ranges table */
 #define ACPI_SIG_ECDT           "ECDT"      /* Embedded Controller Boot Resources Table */
 #define ACPI_SIG_EINJ           "EINJ"      /* Error Injection table */
 #define ACPI_SIG_ERST           "ERST"      /* Error Record Serialization Table */
@@ -1342,6 +1343,291 @@ typedef struct acpi_drtm_dps_id
 } ACPI_DRTM_DPS_ID;
 
 
+/*******************************************************************************
+ *
+ * DTPR - DMA TXT Protection Ranges Table
+ *        Version 1
+ *
+ * Conforms to "Intel® Trusted Execution Technology (Intel® TXT) DMA Protection
+ *              Ranges",
+ * Revision 0.73, August 2021
+ *
+ ******************************************************************************/
+
+typedef struct acpi_table_dtpr {
+    ACPI_TABLE_HEADER header;
+    UINT32 Flags; /* 36 */
+    UINT32 InsCnt;
+
+} ACPI_TABLE_DTPR;
+
+typedef struct acpi_tpr_array {
+    UINT64 Base;
+
+} ACPI_TPR_ARRAY;
+
+typedef struct acpi_tpr_instance {
+    UINT32 Flags;
+    UINT32 TprCnt;
+
+} ACPI_TPR_INSTANCE;
+
+typedef struct acpi_tpr_aux_sr {
+    UINT32 SrlCnt;
+
+} ACPI_TPR_AUX_SR;
+
+
+/*
+ * TPRn_BASE (ACPI_TPRN_BASE_REG)
+ *
+ * Specifies the start address of TPRn region. TPR region address and size must
+ * be with 1MB resolution. These bits are compared with the result of the
+ * TPRn_LIMIT[63:20], which is applied to the incoming address, to
+ * determine if an access fall within the TPRn defined region.
+ *
+ * Minimal TPRn_Base resolution is 1MB. Applied to the incoming address, to
+ * determine if an access fall within the TPRn defined region. Width is
+ * determined by a bus width which can be obtained via CPUID
+ * function 0x80000008.
+ */
+
+typedef UINT64 ACPI_TPRN_BASE_REG;
+
+
+/* TPRn_BASE Register Bit Masks */
+
+/* Bit 3 - RW: access: 1 == RO, 0 == RW register (for TPR must be RW) */
+#define ACPI_TPRN_BASE_RW_SHIFT        3
+
+
+#define ACPI_TPRN_BASE_RW_MASK         ((UINT64) 1 << ACPI_TPRN_BASE_RW_SHIFT)
+
+
+/*
+ * Bit 4 - Enable: 0 – TPRn address range enabled;
+ *                 1 – TPRn address range disabled.
+ */
+#define ACPI_TPRN_BASE_ENABLE_SHIFT    4
+
+
+#define ACPI_TPRN_BASE_ENABLE_MASK     ((UINT64) 1 << ACPI_TPRN_BASE_ENABLE_SHIFT)
+
+
+/* Bits 63:20 - TprBaseRw */
+#define ACPI_TPRN_BASE_ADDR_SHIFT      20
+
+
+#define ACPI_TPRN_BASE_ADDR_MASK       ((UINT64) 0xFFFFFFFFFFF << \
+                                        ACPI_TPRN_BASE_ADDR_SHIFT)
+
+
+/* TPRn_BASE Register Bit Handlers*/
+
+/*
+ * GET_TPRN_BASE_RW:
+ *
+ * Read RW bit from TPRn Base Register - bit 3.
+ *
+ * Input:
+ * - reg (represents TPRn Base Register (ACPI_TPRN_BASE_REG))
+ *
+ * Output:
+ *
+ * Returns RW bit value (UINT64).
+ */
+#define GET_TPRN_BASE_RW(reg)     (((UINT64) reg & ACPI_TPRN_BASE_RW_MASK) >>  \
+                                     ACPI_TPRN_BASE_RW_SHIFT)
+
+
+/*
+ * GET_TPRN_BASE_ENABLE:
+ *
+ * Read Enable bit from TPRn Base Register - bit 4.
+ *
+ * Input:
+ * - reg (represents TPRn Base Register (ACPI_TPRN_BASE_REG))
+ *
+ * Output:
+ *
+ * Returns Enable bit value (UINT64).
+ */
+#define GET_TPRN_BASE_ENABLE(reg) (((UINT64) reg & ACPI_TPRN_BASE_ENABLE_MASK) \
+                                   >> ACPI_TPRN_BASE_ENABLE_SHIFT)
+
+
+/*
+ * GET_TPRN_BASE_ADDR:
+ *
+ * Read TPRn Base Register address from bits 63:20.
+ *
+ * Input:
+ * - reg (represents TPRn Base Register (ACPI_TPRN_BASE_REG))
+ *
+ * Output:
+ *
+ * Returns TPRn Base Register address (UINT64).
+ */
+#define GET_TPRN_BASE_ADDR(reg)   (((UINT64) reg & ACPI_TPRN_BASE_ADDR_MASK)   \
+                                   >> ACPI_TPRN_BASE_ADDR_SHIFT)
+
+
+/*
+ * SET_TPRN_BASE_RW:
+ *
+ * Set RW bit in TPRn Base Register - bit 3.
+ *
+ * Input:
+ * - reg (represents TPRn Base Register (ACPI_TPRN_BASE_REG))
+ * - val (represents RW value to be set (UINT64))
+ */
+#define SET_TPRN_BASE_RW(reg, val) ACPI_REGISTER_INSERT_VALUE(reg,     \
+                                        ACPI_TPRN_BASE_RW_SHIFT,       \
+                                        ACPI_TPRN_BASE_RW_MASK, val);
+
+
+/*
+ * SET_TPRN_BASE_ENABLE:
+ *
+ * Set Enable bit in TPRn Base Register - bit 4.
+ *
+ * Input:
+ * - reg (represents TPRn Base Register (ACPI_TPRN_BASE_REG))
+ * - val (represents Enable value to be set (UINT64))
+ */
+#define SET_TPRN_BASE_ENABLE(reg, val) ACPI_REGISTER_INSERT_VALUE(reg, \
+                                        ACPI_TPRN_BASE_ENABLE_SHIFT,   \
+                                        ACPI_TPRN_BASE_ENABLE_MASK, val);
+
+
+/*
+ * SET_TPRN_BASE_ADDR:
+ *
+ * Set TPRn Base Register address - bits 63:20
+ *
+ * Input
+ * - reg (represents TPRn Base Register (ACPI_TPRN_BASE_REG))
+ * - val (represents address value to be set (UINT64))
+ */
+#define SET_TPRN_BASE_ADDR(reg, val) ACPI_REGISTER_INSERT_VALUE(reg,   \
+                                        ACPI_TPRN_BASE_ADDR_SHIFT,     \
+                                        ACPI_TPRN_BASE_ADDR_MASK, val);
+
+
+/*
+ * TPRn_LIMIT
+ *
+ * This register defines an isolated region of memory that can be enabled
+ * to prohibit certain system agents from accessing memory. When an agent
+ * sends a request upstream, whether snooped or not, a TPR prevents that
+ * transaction from changing the state of memory.
+ *
+ * Minimal TPRn_Limit resolution is 1MB. Width is determined by a bus width.
+ */
+
+typedef UINT64 ACPI_TPRN_LIMIT_REG;
+
+
+/* TPRn_LIMIT Register Bit Masks */
+
+
+/* Bit 3 - RW: access: 1 == RO, 0 == RW register (for TPR must be RW) */
+#define ACPI_TPRN_LIMIT_RW_SHIFT   3
+
+
+#define ACPI_TPRN_LIMIT_RW_MASK    ((UINT64) 1 << ACPI_TPRN_LIMIT_RW_SHIFT)
+
+
+/* Bits 63:20 - TprLimitRw */
+#define ACPI_TPRN_LIMIT_ADDR_SHIFT 20
+
+
+#define ACPI_TPRN_LIMIT_ADDR_MASK  ((UINT64) 0xFFFFFFFFFFF << \
+                                   ACPI_TPRN_LIMIT_ADDR_SHIFT)
+
+
+/* TPRn_LIMIT Register Bit Handlers*/
+
+/*
+ * GET_TPRN_LIMIT_RW:
+ *
+ * Read RW bit from TPRn Limit Register - bit 3.
+ *
+ * Input:
+ * - reg (represents TPRn Limit Register (ACPI_TPRN_LIMIT_REG))
+ *
+ * Output:
+ *
+ * Returns RW bit value (UINT64).
+ */
+#define GET_TPRN_LIMIT_RW(reg)    (((UINT64) reg & ACPI_TPRN_LIMIT_RW_MASK)    \
+                                   >> ACPI_TPRN_LIMIT_RW_SHIFT)
+
+
+/*
+ * GET_TPRN_LIMIT_ADDR:
+ *
+ * Read TPRn Limit Register address from bits 63:20.
+ *
+ * Input:
+ * - reg (represents TPRn Limit Register (ACPI_TPRN_LIMIT_REG))
+ *
+ * Output:
+ *
+ * Returns TPRn Limit Register address (UINT64).
+ */
+#define GET_TPRN_LIMIT_ADDR(reg)  (((UINT64) reg & ACPI_TPRN_LIMIT_ADDR_MASK)  \
+                                   >> ACPI_TPRN_LIMIT_ADDR_SHIFT)
+
+
+/*
+ * SET_TPRN_LIMIT_RW:
+ *
+ * Set RW bit in TPRn Limit Register - bit 3.
+ *
+ * Input:
+ * - reg (represents TPRn Limit Register (ACPI_TPRN_LIMIT_REG))
+ * - val (represents RW value to be set (UINT64))
+ */
+#define SET_TPRN_LIMIT_RW(reg, val) ACPI_REGISTER_INSERT_VALUE(reg,            \
+                                        ACPI_TPRN_LIMIT_RW_SHIFT,              \
+                                        ACPI_TPRN_LIMIT_RW_MASK, val);
+
+
+/*
+ * SET_TPRN_LIMIT_ADDR:
+ *
+ * Set TPRn Limit Register address - bits 63:20.
+ *
+ * Input:
+ * - reg (represents TPRn Limit Register (ACPI_TPRN_LIMIT_REG))
+ * - val (represents address value to be set (UINT64))
+ */
+#define SET_TPRN_LIMIT_ADDR(reg, val) ACPI_REGISTER_INSERT_VALUE(reg,          \
+                                        ACPI_TPRN_LIMIT_ADDR_SHIFT,            \
+                                        ACPI_TPRN_LIMIT_ADDR_MASK, val);
+
+
+/*
+ * SERIALIZE_REQUEST
+ *
+ * This register is used to request serialization of non-coherent DMA
+ * transactions. OS shall  issue it before changing of TPR settings
+ * (base / size).
+ */
+
+typedef struct acpi_tpr_serialize_request {
+    UINT64 SrRegister;
+    /*
+     * BIT 1 - Status of serialization request (RO)
+     *         0 == register idle, 1 == serialization in progress
+     * BIT 2 - Control field to initiate serialization (RW)
+     *         0 == normal, 1 == initialize serialization
+     * (self-clear to allow multiple serialization requests)
+     */
+} ACPI_TPR_SERIALIZE_REQUEST;
+
+
 /*******************************************************************************
  *
  * ECDT - Embedded Controller Boot Resources Table
@@ -2473,7 +2759,6 @@ typedef struct acpi_ibft_target
 
 } ACPI_IBFT_TARGET;
 
-
 /* Reset to default packing */
 
 #pragma pack()
diff --git a/sys/contrib/dev/acpica/include/actbl2.h b/sys/contrib/dev/acpica/include/actbl2.h
index a51ff1ecaa0..a5e71e67285 100644
--- a/sys/contrib/dev/acpica/include/actbl2.h
+++ b/sys/contrib/dev/acpica/include/actbl2.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/actbl3.h b/sys/contrib/dev/acpica/include/actbl3.h
index 6392359249c..4886b12c031 100644
--- a/sys/contrib/dev/acpica/include/actbl3.h
+++ b/sys/contrib/dev/acpica/include/actbl3.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/actypes.h b/sys/contrib/dev/acpica/include/actypes.h
index 3c95887b167..38f3afa8c81 100644
--- a/sys/contrib/dev/acpica/include/actypes.h
+++ b/sys/contrib/dev/acpica/include/actypes.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acutils.h b/sys/contrib/dev/acpica/include/acutils.h
index 06b8eb0bda6..f306f93c1a9 100644
--- a/sys/contrib/dev/acpica/include/acutils.h
+++ b/sys/contrib/dev/acpica/include/acutils.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/acuuid.h b/sys/contrib/dev/acpica/include/acuuid.h
index a950972b01b..9546baa7f1d 100644
--- a/sys/contrib/dev/acpica/include/acuuid.h
+++ b/sys/contrib/dev/acpica/include/acuuid.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
@@ -205,6 +205,11 @@
 #define UUID_CACHE_PROPERTIES           "6DC63E77-257E-4E78-A973-A21F2796898D"
 #define UUID_PHYSICAL_PROPERTY          "DDE4D59A-AA42-4349-B407-EA40F57D9FB7"
 
+/* Modern Standby */
+#define UUID_LPS0_MICROSOFT             "11E00D56-CE64-47CE-837B-1F898F9AA461"
+#define UUID_LPS0_INTEL                 "C4EB40A0-6CD2-11E2-BCFD-0800200C9A66"
+#define UUID_LPS0_AMD                   "E3F32452-FEBC-43CE-9039-932122D37721"
+
 /* Miscellaneous */
 
 #define UUID_PLATFORM_CAPABILITIES      "0811b06e-4a27-44f9-8d60-3cbbc22e7b48"
diff --git a/sys/contrib/dev/acpica/include/amlcode.h b/sys/contrib/dev/acpica/include/amlcode.h
index 6bb59190479..ffd48e9e675 100644
--- a/sys/contrib/dev/acpica/include/amlcode.h
+++ b/sys/contrib/dev/acpica/include/amlcode.h
@@ -10,7 +10,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/amlresrc.h b/sys/contrib/dev/acpica/include/amlresrc.h
index 4482ed378ab..3362b52b320 100644
--- a/sys/contrib/dev/acpica/include/amlresrc.h
+++ b/sys/contrib/dev/acpica/include/amlresrc.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/platform/acenv.h b/sys/contrib/dev/acpica/include/platform/acenv.h
index b842965bfca..8b821f17630 100644
--- a/sys/contrib/dev/acpica/include/platform/acenv.h
+++ b/sys/contrib/dev/acpica/include/platform/acenv.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/platform/acenvex.h b/sys/contrib/dev/acpica/include/platform/acenvex.h
index e9632619abf..2735e02174d 100644
--- a/sys/contrib/dev/acpica/include/platform/acenvex.h
+++ b/sys/contrib/dev/acpica/include/platform/acenvex.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/platform/acfreebsd.h b/sys/contrib/dev/acpica/include/platform/acfreebsd.h
index b537a25f9fb..c039ba1c2de 100644
--- a/sys/contrib/dev/acpica/include/platform/acfreebsd.h
+++ b/sys/contrib/dev/acpica/include/platform/acfreebsd.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/platform/acgcc.h b/sys/contrib/dev/acpica/include/platform/acgcc.h
index 39ff864fa5d..9ed3be2b065 100644
--- a/sys/contrib/dev/acpica/include/platform/acgcc.h
+++ b/sys/contrib/dev/acpica/include/platform/acgcc.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/include/platform/acgccex.h b/sys/contrib/dev/acpica/include/platform/acgccex.h
index bb3b55cf2ca..fae2413bf71 100644
--- a/sys/contrib/dev/acpica/include/platform/acgccex.h
+++ b/sys/contrib/dev/acpica/include/platform/acgccex.h
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/os_specific/service_layers/osgendbg.c b/sys/contrib/dev/acpica/os_specific/service_layers/osgendbg.c
index eb34274ce67..854a8509fb8 100644
--- a/sys/contrib/dev/acpica/os_specific/service_layers/osgendbg.c
+++ b/sys/contrib/dev/acpica/os_specific/service_layers/osgendbg.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License
diff --git a/sys/contrib/dev/acpica/os_specific/service_layers/osunixxf.c b/sys/contrib/dev/acpica/os_specific/service_layers/osunixxf.c
index 81cda5e4eb6..0a1a0c0bf9d 100644
--- a/sys/contrib/dev/acpica/os_specific/service_layers/osunixxf.c
+++ b/sys/contrib/dev/acpica/os_specific/service_layers/osunixxf.c
@@ -8,7 +8,7 @@
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2026, Intel Corp.
  * All rights reserved.
  *
  * 2. License