From: Jarno Rajahalme Date: Sun, 16 Feb 2014 01:37:45 +0000 (-0800) Subject: openvswitch: Read tcp flags only then the tranport header is present. X-Git-Tag: v3.14-rc8~3^2~5^2~2 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=04382a3303c22b0c536fbd0c94c1f012f2b8ed60;p=linux.git 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 Signed-off-by: Jesse Gross --- diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 16f4b46161d4..d71e60fa28cb 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -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));