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authorHerbert Xu <herbert@gondor.apana.org.au>2007-12-12 18:47:48 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:57:41 -0800
commit7233b9f33e72ca477034ff5cf901c89efba3a5bc (patch)
tree91f3ca124a86cd0be9ac068a98e895923e4c03f8 /net/ipv4/icmp.c
parent2ba582b782071c038b312ea330d3090a39f3c66a (diff)
downloadlinux-7233b9f33e72ca477034ff5cf901c89efba3a5bc.tar.bz2
[IPSEC]: Fix reversed ICMP6 policy check
The policy check I added for ICMP on IPv6 is reversed. This patch fixes that. It also adds an skb->sp check so that unprotected packets that fail the policy check do not crash the machine. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/icmp.c')
-rw-r--r--net/ipv4/icmp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 3c41a6f7e6ec..c41f3cc4fba8 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -977,7 +977,7 @@ int icmp_rcv(struct sk_buff *skb)
struct icmphdr *icmph;
struct rtable *rt = (struct rtable *)skb->dst;
- if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb) &&
+ if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb) && skb->sp &&
skb->sp->xvec[skb->sp->len - 1]->props.flags & XFRM_STATE_ICMP) {
int nh;