diff options
| author | Mark Johnston <markj@FreeBSD.org> | 2026-02-23 15:52:50 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2026-02-24 16:00:21 +0000 |
| commit | df932377e7dd7dc536fa14612d9e80aa3554772e (patch) | |
| tree | 07cb255718818371d54641d39fef0ca5cd4bd05d | |
| parent | d3fec169baf9ea0a94d868b04adeab16f918e29f (diff) | |
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)
| -rw-r--r-- | sys/net/rtsock.c | 4 |
1 files 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; |