From e05521121f05a1b1e0d7c7b5fbe79f83fc303cd0 Mon Sep 17 00:00:00 2001 From: Ahmad Khalifa Date: Thu, 25 Sep 2025 19:54:28 +0300 Subject: [PATCH] ng_tty: copy to the correct mbuf memcpy should copy to the current mbuf, otherwise we're copying to the first mbuf in the chain over and over. Reported by: kevans Reviewed by: glebius MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D52713 --- sys/netgraph/ng_tty.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/netgraph/ng_tty.c b/sys/netgraph/ng_tty.c index c7d8a1b64ea..0e3230a66f6 100644 --- a/sys/netgraph/ng_tty.c +++ b/sys/netgraph/ng_tty.c @@ -427,7 +427,7 @@ ngt_rint_bypass(struct tty *tp, const void *buf, size_t len) for (mb = m; mb != NULL; mb = mb->m_next) { length = min(M_TRAILINGSPACE(mb), len - total); - memcpy(mtod(m, char *), (const char *)buf + total, length); + memcpy(mtod(mb, char *), (const char *)buf + total, length); mb->m_len = length; total += length; m->m_pkthdr.len += length;