The branch stable/15 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=df932377e7dd7dc536fa14612d9e80aa3554772e
commit df932377e7dd7dc536fa14612d9e80aa3554772e Author: Mark Johnston <[email protected]> AuthorDate: 2026-02-23 15:52:50 +0000 Commit: Mark Johnston <[email protected]> CommitDate: 2026-02-24 16:00:21 +0000 rtsock: Fix stack overflow Approved by: so Security: FreeBSD-SA-26:05.route Security: CVE-2026-3038 Fixes: 92be2847e845 ("rtsock: Avoid copying uninitialized padding bytes") (cherry picked from commit f3be7df50f01d9a6ead9f27b55bb4dfd7dc4f9d2) --- sys/net/rtsock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index be858428bb3e..de4c3f8c6374 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -1866,8 +1866,8 @@ rtsock_msg_buffer(int type, struct rt_addrinfo *rtinfo, struct walkarg *w, int * #endif dlen = SA_SIZE(sa); if (cp != NULL && buflen >= dlen) { - KASSERT(dlen <= sizeof(ss), - ("%s: sockaddr size overflow", __func__)); + if (sa->sa_len > sizeof(ss)) + return (EINVAL); bzero(&ss, sizeof(ss)); bcopy(sa, &ss, sa->sa_len); sa = (struct sockaddr *)&ss;
