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authorDavid S. Miller <davem@davemloft.net>2009-07-05 19:06:45 -0700
committerDavid S. Miller <davem@davemloft.net>2009-07-05 19:06:45 -0700
commit6b1344724e10c166d9e3c17011ed879ddf302e94 (patch)
treebbfa98b183c1249a58ad2debdb696392d8c4a029 /net/ipv4/xfrm4_policy.c
parent8e4a718ff38d8539938ec3421935904c27e00c39 (diff)
parent1ded3f59f35a2642852b3e2a1c0fa8a97777e9af (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'net/ipv4/xfrm4_policy.c')
-rw-r--r--net/ipv4/xfrm4_policy.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 60d918c96a4..0071ee6f441 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -136,7 +136,8 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
case IPPROTO_TCP:
case IPPROTO_SCTP:
case IPPROTO_DCCP:
- if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
+ if (xprth + 4 < skb->data ||
+ pskb_may_pull(skb, xprth + 4 - skb->data)) {
__be16 *ports = (__be16 *)xprth;
fl->fl_ip_sport = ports[!!reverse];