From 7233b9f33e72ca477034ff5cf901c89efba3a5bc Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 12 Dec 2007 18:47:48 -0800 Subject: [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 Signed-off-by: David S. Miller --- net/ipv6/icmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv6/icmp.c') diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index c0bea7bfaa8a..1659d2fb01fe 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -644,7 +644,7 @@ static int icmpv6_rcv(struct sk_buff *skb) struct icmp6hdr *hdr; int type; - if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb) && + if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb) && skb->sp && skb->sp->xvec[skb->sp->len - 1]->props.flags & XFRM_STATE_ICMP) { int nh; -- cgit v1.2.3