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netfilter: nf_queue: fix queueing of bridged gro skbs
When trying to nf_queue GRO/GSO skbs, nf_queue uses skb_gso_segment to split the skb. However, if nf_queue is called via bridge netfilter, the mac header won't be preserved -- packets will thus contain a bogus mac header. Fix this by setting skb->data to the mac header when skb->nf_bridge is set and restoring skb->data afterwards for all segments. Signed-off-by: Florian Westphal <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
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