From 5583b64f230fe0ea4e3d4bf4566205b521190fbb Mon Sep 17 00:00:00 2001
From: Juhyung Park <qkrwngud825@gmail.com>
Date: Tue, 3 Mar 2026 09:59:33 +0000
Subject: [PATCH] Set errno to ENOMEM on rallocx() OOM failures

realloc() and rallocx() shares path, and realloc() should set errno to
ENOMEM upon OOM failures.

PR:		291677
Obtained from:	jemalloc (commit 38056fea64c34ca4fef0a16212776eaa4de80b78)
Fixes:		c43cad871720 ("jemalloc: Merge from jemalloc 5.3.0 vendor branch")
MFC after:	3 days
Pull Request:	https://github.com/freebsd/freebsd-src/pull/2059
---
 contrib/jemalloc/src/jemalloc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contrib/jemalloc/src/jemalloc.c b/contrib/jemalloc/src/jemalloc.c
index e4b183d1a24..352c18870e0 100644
--- a/contrib/jemalloc/src/jemalloc.c
+++ b/contrib/jemalloc/src/jemalloc.c
@@ -3561,6 +3561,7 @@ do_rallocx(void *ptr, size_t size, int flags, bool is_realloc) {
 
 	return p;
 label_oom:
+	set_errno(ENOMEM);
 	if (config_xmalloc && unlikely(opt_xmalloc)) {
 		malloc_write("<jemalloc>: Error in rallocx(): out of memory\n");
 		abort();