diff options
Diffstat (limited to 'sys/netinet/if_ether.c')
| -rw-r--r-- | sys/netinet/if_ether.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c index 68ddf9f981b..3fa68753f74 100644 --- a/sys/netinet/if_ether.c +++ b/sys/netinet/if_ether.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_ether.c,v 1.147 2015/03/14 03:38:51 jsg Exp $ */ +/* $OpenBSD: if_ether.c,v 1.148 2015/03/14 17:13:44 mpi Exp $ */ /* $NetBSD: if_ether.c,v 1.31 1996/05/11 12:59:58 mycroft Exp $ */ /* @@ -399,6 +399,13 @@ arpresolve(struct arpcom *ac, struct rtentry *rt0, struct mbuf *m, return (EINVAL); } sdl = SDL(rt->rt_gateway); + if (sdl->sdl_alen > 0 && sdl->sdl_alen != ETHER_ADDR_LEN) { + log(LOG_DEBUG, "%s: %s: incorrect arp information\n", __func__, + inet_ntop(AF_INET, &satosin(dst)->sin_addr, + addr, sizeof(addr))); + m_freem(m); + return (EINVAL); + } /* * Check the address family and length is valid, the address * is resolved; otherwise, try to resolve. |