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Fix NULL pointer dereference.

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ro pointer can be NULL when IPSec consumes mbuf.

PR:		211486
MFC after:	3 days
This commit is contained in:
Andrey V. Elsukov 2016-08-02 12:18:06 +00:00
parent 05cde7efa6
commit 723758b7ce
1 changed files with 2 additions and 1 deletions
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3
sys/netinet6/ip6_output.c
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@ -1058,7 +1058,8 @@ done:
* Release the route if using our private route, or if
* (with flowtable) we don't have our own reference.
*/
if (ro == &ip6route || ro->ro_flags & RT_NORTREF)
if (ro == &ip6route ||
(ro != NULL && ro->ro_flags & RT_NORTREF))
RO_RTFREE(ro);
return (error);