diff options
Diffstat (limited to 'sys/netinet/igmp.c')
| -rw-r--r-- | sys/netinet/igmp.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/netinet/igmp.c b/sys/netinet/igmp.c index f4c4bf03a9a..3a486107f76 100644 --- a/sys/netinet/igmp.c +++ b/sys/netinet/igmp.c @@ -1,4 +1,4 @@ -/* $OpenBSD: igmp.c,v 1.48 2014/12/17 09:57:13 mpi Exp $ */ +/* $OpenBSD: igmp.c,v 1.49 2015/06/16 11:09:40 mpi Exp $ */ /* $NetBSD: igmp.c,v 1.15 1996/02/13 23:41:25 christos Exp $ */ /* @@ -209,7 +209,7 @@ void igmp_input(struct mbuf *m, ...) { int iphlen; - struct ifnet *ifp = m->m_pkthdr.rcvif; + struct ifnet *ifp; struct ip *ip = mtod(m, struct ip *); struct igmp *igmp; int igmplen; @@ -229,6 +229,12 @@ igmp_input(struct mbuf *m, ...) igmplen = ntohs(ip->ip_len) - iphlen; + ifp = if_get(m->m_pkthdr.ph_ifidx); + if (ifp == NULL) { + m_freem(m); + return; + } + /* * Validate lengths */ |