Date: Tue, 24 Feb 2026 16:00:00 +0000 From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: f3be7df50f01 - main - rtsock: Fix stack overflow Message-ID: <699dcb00.26afa.1fe11e3c@gitrepo.freebsd.org>
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The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=f3be7df50f01d9a6ead9f27b55bb4dfd7dc4f9d2 commit f3be7df50f01d9a6ead9f27b55bb4dfd7dc4f9d2 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2026-02-23 15:52:50 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2026-02-24 15:58:48 +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") --- 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 774537366910..5251d4d75f15 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -1875,8 +1875,8 @@ 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;home | help
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