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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-17 09:14:21 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-17 09:14:21 -0700
commit32535bd5637d3152f944f124bcc82d498892ba1b (patch)
tree99d33b58cfec44f4cf95fad5efa75aea0dd7d60b /net/openvswitch/flow.c
parent0b623f871d7c993fac8ad7aaaa8f5f3cdb8ed480 (diff)
parent3a36dd068f4308461661d28e8e14e11e426eba6b (diff)
Merge branch 'v3.5-for-usb' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into usb-next
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;
}