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authorMartin Pieuchot <mpi@cvs.openbsd.org>2016-07-22 07:39:07 +0000
committerMartin Pieuchot <mpi@cvs.openbsd.org>2016-07-22 07:39:07 +0000
commit4aa7a21f6094125b43feee8bd294859f13e0596e (patch)
tree05ccd071df608b83aa5e675447dd31755b6aa73b /sys/netinet
parent8049867a1079dba5353d4841fab64bc2e05a7f97 (diff)
Fix a double rtfree(9) triggered when IPSEC inserts a more specific
route because of PMTU. otto@ reported the issue and helped me tracking it down during more than one month, he is the man! mikeb@ figured out the bug was in the forwarding path. ok mikeb@, deraadt@, claudio@
Diffstat (limited to 'sys/netinet')
-rw-r--r--sys/netinet/ip_input.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index 51f9986e9f6..a1b33c6667b 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ip_input.c,v 1.278 2016/07/18 13:17:44 bluhm Exp $ */
+/* $OpenBSD: ip_input.c,v 1.279 2016/07/22 07:39:06 mpi Exp $ */
/* $NetBSD: ip_input.c,v 1.30 1996/03/16 23:53:58 christos Exp $ */
/*
@@ -1488,6 +1488,7 @@ ip_forward(struct mbuf *m, struct ifnet *ifp, struct rtentry *rt, int srcrt)
error = ip_output(m, NULL, &ro,
(IP_FORWARDING | (ip_directedbcast ? IP_ALLOWBROADCAST : 0)),
NULL, NULL, 0);
+ rt = ro.ro_rt;
if (error)
ipstat.ips_cantforward++;
else {