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authorStefan Richter <stefanr@s5r6.in-berlin.de>2012-05-21 21:39:42 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2012-05-21 21:39:42 +0200
commit0ad8c6a22d03a1598f7cc6585c65354dadca62ad (patch)
tree1507deef3d55d5f3c71b2f76924fe1f6c6211905 /net/openvswitch/flow.c
parent8527f8e2934683e53405fbe876a4e6f4a0c46eb8 (diff)
parent76e10d158efb6d4516018846f60c2ab5501900bc (diff)
Merge tag 'v3.4' with SCSI updates, needed for subsequent firewire-sbp2 changes
Linux 3.4
Diffstat (limited to 'net/openvswitch/flow.c')
-rw-r--r--net/openvswitch/flow.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 1252c3081ef..2a11ec2383e 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -183,7 +183,8 @@ void ovs_flow_used(struct sw_flow *flow, struct sk_buff *skb)
u8 tcp_flags = 0;
if (flow->key.eth.type == htons(ETH_P_IP) &&
- flow->key.ip.proto == IPPROTO_TCP) {
+ flow->key.ip.proto == IPPROTO_TCP &&
+ likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
u8 *tcp = (u8 *)tcp_hdr(skb);
tcp_flags = *(tcp + TCP_FLAGS_OFFSET) & TCP_FLAG_MASK;
}