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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: d0e13a1488 ("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>
1382 lines
30 KiB
1382 lines
30 KiB