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authorDavid S. Miller <davem@davemloft.net>2012-05-17 02:17:37 (GMT)
committerDavid S. Miller <davem@davemloft.net>2012-05-17 02:17:37 (GMT)
commit028940342a906db8da014a7603a0deddc2c323dd (patch)
tree688dbc38a3e218f2493d311b1d70a67668837347 /net/openvswitch/flow.c
parentbe3eed2e96340d3c7a4d1ea1d63e7bd6095d1e34 (diff)
parent0e93b4b304ae052ba1bc73f6d34a68556fe93429 (diff)
downloadlinux-fsl-qoriq-028940342a906db8da014a7603a0deddc2c323dd.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
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 7cb4163..6d4d809 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;
}