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Clear ifindex2ifnet[] in if_detach() this is needed because link local

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addressing in IPv6 likes to do ifp = ifindex2ifnet[ifindex] without properly
checking if the ifindex is valid. As a side-effect this solves parts of
PR 5981. Debugged by jsing@. OK jsing@, deraadt@
This commit is contained in:
claudio 2008-11-10 18:08:42 +00:00
parent 4aa892c616
commit 2d6ec8084b
1 changed files with 2 additions and 1 deletions
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3
sys/net/if.c
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@ -1,4 +1,4 @@
/* $OpenBSD: if.c,v 1.173 2008/06/12 16:15:05 claudio Exp $ */
/* $OpenBSD: if.c,v 1.174 2008/11/10 18:08:42 claudio Exp $ */
/* $NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $ */
/*
@ -636,6 +636,7 @@ do { \
/* Announce that the interface is gone. */
rt_ifannouncemsg(ifp, IFAN_DEPARTURE);
ifindex2ifnet[ifp->if_index] = NULL;
splx(s);
}