Author: tuexen Date: Sun Apr 14 10:18:14 2019 New Revision: 346197 URL: https://svnweb.freebsd.org/changeset/base/346197
Log: When sending a routing message, don't allow the user to set the RTF_RNH_LOCKED flag in rtm_flags, since this flag is used only internally. Reported by: syzbot+65c676f5248a13753...@syzkaller.appspotmail.com Reviewed by: ae@ MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D19898 Modified: head/sys/net/rtsock.c Modified: head/sys/net/rtsock.c ============================================================================== --- head/sys/net/rtsock.c Sun Apr 14 00:06:49 2019 (r346196) +++ head/sys/net/rtsock.c Sun Apr 14 10:18:14 2019 (r346197) @@ -618,6 +618,8 @@ route_output(struct mbuf *m, struct socket *so, ...) if (rt_xaddrs((caddr_t)(rtm + 1), len + (caddr_t)rtm, &info)) senderr(EINVAL); + if (rtm->rtm_flags & RTF_RNH_LOCKED) + senderr(EINVAL); info.rti_flags = rtm->rtm_flags; if (info.rti_info[RTAX_DST] == NULL || info.rti_info[RTAX_DST]->sa_family >= AF_MAX || _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
