Date: Wed, 10 Dec 2008 03:16:30 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r185828 - user/kmacy/head_arpv2/sys/netinet6 Message-ID: <200812100316.mBA3GU0p011859@svn.freebsd.org>
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Author: kmacy Date: Wed Dec 10 03:16:30 2008 New Revision: 185828 URL: http://svn.freebsd.org/changeset/base/185828 Log: rt might be null do not dereference blindly Modified: user/kmacy/head_arpv2/sys/netinet6/nd6.c Modified: user/kmacy/head_arpv2/sys/netinet6/nd6.c ============================================================================== --- user/kmacy/head_arpv2/sys/netinet6/nd6.c Wed Dec 10 03:04:16 2008 (r185827) +++ user/kmacy/head_arpv2/sys/netinet6/nd6.c Wed Dec 10 03:16:30 2008 (r185828) @@ -1110,11 +1110,12 @@ nd6_nud_hint(struct rtentry *rt, struct { INIT_VNET_INET6(curvnet); struct llentry *ln; - struct ifnet *ifp = rt->rt_ifp; + struct ifnet *ifp; - if (dst6 == NULL) + if ((dst6 == NULL) || (rt == NULL)) return; + ifp = rt->rt_ifp; IF_AFDATA_LOCK(ifp); ln = nd6_lookup(dst6, ND6_EXCLUSIVE, NULL); IF_AFDATA_UNLOCK(ifp);
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