tap: call skb_probe_transport_header after setting skb->dev
The BPF flow dissector expects either skb->sk or skb->dev set on all skbs. Delay flow dissection until after skb->dev is set. This requires calling from within an rcu read-side critical section. That is fine, see also the call from tun_xdp_one. Fixes: d0e13a14 ("flow_dissector: lookup netns by skb->sk if skb->dev is NULL") Reported-by:Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
aff6db45
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