diff options
Diffstat (limited to 'sys/net/rtsock.c')
| -rw-r--r-- | sys/net/rtsock.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 9037a0e3c6a..83d45d93479 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rtsock.c,v 1.198 2016/09/01 09:35:28 mpi Exp $ */ +/* $OpenBSD: rtsock.c,v 1.199 2016/09/01 11:26:44 mpi Exp $ */ /* $NetBSD: rtsock.c,v 1.18 1996/03/29 00:32:10 cgd Exp $ */ /* @@ -657,6 +657,17 @@ route_output(struct mbuf *m, ...) route_cleargateway, rt); goto report; } + + /* + * Make sure that local routes are only modified by the + * kernel. + */ + if ((rt != NULL) && + ISSET(rt->rt_flags, RTF_LOCAL|RTF_BROADCAST)) { + error = EINVAL; + goto report; + } + rtfree(rt); rt = NULL; |