Date: Fri, 25 Jan 2013 23:11:14 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r245922 - head/sys/netinet6 Message-ID: <201301252311.r0PNBE9x057733@svn.freebsd.org>
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Author: np Date: Fri Jan 25 23:11:13 2013 New Revision: 245922 URL: http://svnweb.freebsd.org/changeset/base/245922 Log: Avoid NULL dereference in nd6_storelladdr when no mbuf is provided. It is called this way from a couple of places in the OFED code. (toecore calls it too but that's going to change shortly). Reviewed by: bz@ Modified: head/sys/netinet6/nd6.c Modified: head/sys/netinet6/nd6.c ============================================================================== --- head/sys/netinet6/nd6.c Fri Jan 25 22:50:52 2013 (r245921) +++ head/sys/netinet6/nd6.c Fri Jan 25 23:11:13 2013 (r245922) @@ -2166,7 +2166,7 @@ nd6_storelladdr(struct ifnet *ifp, struc *lle = NULL; IF_AFDATA_UNLOCK_ASSERT(ifp); - if (m->m_flags & M_MCAST) { + if (m != NULL && m->m_flags & M_MCAST) { int i; switch (ifp->if_type) {
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