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: Sarveshwar Bandi <sarveshwar.bandi@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -265,6 +265,9 @@ static int br_parse_ip_options(struct sk_buff *skb)
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struct net_device *dev = skb->dev;
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u32 len;
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if (!pskb_may_pull(skb, sizeof(struct iphdr)))
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goto inhdr_error;
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iph = ip_hdr(skb);
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opt = &(IPCB(skb)->opt);
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