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Commit 6caab7b0 authored by Sarveshwar Bandi's avatar Sarveshwar Bandi Committed by David S. Miller
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bridge: Pull ip header into skb->data before looking into ip header. 



If lower layer driver leaves the ip header in the skb fragment, it needs to
be first pulled into skb->data before inspecting ip header length or ip version
number.

Signed-off-by: default avatarSarveshwar Bandi <sarveshwar.bandi@emulex.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 435f08a7

net/bridge/br_netfilter.c

+3 −0
Original line number Diff line number Diff line
@@ -265,6 +265,9 @@ static int br_parse_ip_options(struct sk_buff *skb) 
	struct net_device *dev = skb->dev;

	u32 len;



	if (!pskb_may_pull(skb, sizeof(struct iphdr)))

		goto inhdr_error;



	iph = ip_hdr(skb);

	opt = &(IPCB(skb)->opt);