diff options
| -rw-r--r-- | sys/netinet6/in6_gif.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/netinet6/in6_gif.c b/sys/netinet6/in6_gif.c index c9123d7..632ff8f 100644 --- a/sys/netinet6/in6_gif.c +++ b/sys/netinet6/in6_gif.c @@ -234,14 +234,21 @@ in6_gif_input(mp, offp, proto) { struct mbuf *m = *mp; struct ifnet *gifp = NULL; + struct gif_softc *sc; struct ip6_hdr *ip6; int af = 0; u_int32_t otos; ip6 = mtod(m, struct ip6_hdr *); - gifp = (struct ifnet *)encap_getarg(m); + sc = (struct gif_softc *)encap_getarg(m); + if (sc == NULL) { + m_freem(m); + ip6stat.ip6s_nogif++; + return IPPROTO_DONE; + } + gifp = GIF2IFP(sc); if (gifp == NULL || (gifp->if_flags & IFF_UP) == 0) { m_freem(m); ip6stat.ip6s_nogif++; |
