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Commit 04382a33 authored Feb 15, 2014 by Jarno Rajahalme Committed by Jesse Gross Feb 15, 2014

openvswitch: Read tcp flags only then the tranport header is present.



Only the first IP fragment can have a TCP header, check for this.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

parent 3c7eacfc

net/openvswitch/flow.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -73,6 +73,7 @@ void ovs_flow_stats_update(struct sw_flow flow, struct sk_buff skb)

		if ((flow->key.eth.type == htons(ETH_P_IP) \|\|
		flow->key.eth.type == htons(ETH_P_IPV6)) &&
		flow->key.ip.frag != OVS_FRAG_TYPE_LATER &&
		flow->key.ip.proto == IPPROTO_TCP &&
		likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
		tcp_flags = TCP_FLAGS_BE16(tcp_hdr(skb));