Date: Mon, 21 Dec 2015 20:29:55 +0000 (UTC) From: Kristof Provost <kp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r292566 - stable/10/sys/netinet6 Message-ID: <201512212029.tBLKTtxZ094006@repo.freebsd.org>
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Author: kp Date: Mon Dec 21 20:29:55 2015 New Revision: 292566 URL: https://svnweb.freebsd.org/changeset/base/292566 Log: MFC r292219: inet6: Do not assume every interface has ip6 enabled. Certain interfaces (e.g. pfsync0) do not have ip6 addresses (in other words, ifp->if_afdata[AF_INET6] is NULL). Ensure we don't panic when the MTU is updated. pfsync interfaces will never have ip6 support, because it's explicitly disabled in in6_domifattach(). PR: 205194 Modified: stable/10/sys/netinet6/nd6.c Modified: stable/10/sys/netinet6/nd6.c ============================================================================== --- stable/10/sys/netinet6/nd6.c Mon Dec 21 20:17:24 2015 (r292565) +++ stable/10/sys/netinet6/nd6.c Mon Dec 21 20:29:55 2015 (r292566) @@ -227,6 +227,8 @@ nd6_ifdetach(struct nd_ifinfo *nd) void nd6_setmtu(struct ifnet *ifp) { + if (ifp->if_afdata[AF_INET6] == NULL) + return; nd6_setmtu0(ifp, ND_IFINFO(ifp)); }
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