Date: Sun, 9 Nov 2008 14:33:56 GMT From: Gleb Kurtsou <gk@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 152690 for review Message-ID: <200811091433.mA9EXuhg082681@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=152690 Change 152690 by gk@gk_h1 on 2008/11/09 14:33:22 mbuf can be consumed by pfil Affected files ... .. //depot/projects/soc2008/gk_l2filter/sys-net/if_bridge.c#11 edit .. //depot/projects/soc2008/gk_l2filter/sys-net/if_ethersubr.c#6 edit Differences ... ==== //depot/projects/soc2008/gk_l2filter/sys-net/if_bridge.c#11 (text+ko) ==== @@ -2974,7 +2974,8 @@ if (PFIL_HOOKED(ðer_pfil_hook) && dir == PFIL_OUT && bifp != NULL && (bifp->if_flags & IFF_L2FILTER)) { - if (pfil_run_hooks(ðer_pfil_hook, mp, bifp, PFIL_OUT, NULL) != 0) + if (pfil_run_hooks(ðer_pfil_hook, mp, bifp, PFIL_OUT, NULL) != 0 || + *mp == NULL) return EACCES; } ==== //depot/projects/soc2008/gk_l2filter/sys-net/if_ethersubr.c#6 (text+ko) ==== @@ -612,7 +612,8 @@ */ if (PFIL_HOOKED(ðer_pfil_hook) && (ifp->if_flags & IFF_L2FILTER) && !(m->m_flags & M_PROMISC)) { - if (pfil_run_hooks(ðer_pfil_hook, &m, ifp, PFIL_IN, NULL) != 0) + if (pfil_run_hooks(ðer_pfil_hook, &m, ifp, PFIL_IN, NULL) != 0 || + m == NULL) return; } eh = mtod(m, struct ether_header *);
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