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netem: fix skb_orphan_partial()
I should have known that lowering skb->truesize was dangerous :/ In case packets are not leaving the host via a standard Ethernet device, but looped back to local sockets, bad things can happen, as reported by Michael Madsen ( https://bugzilla.kernel.org/show_bug.cgi?id=195713 ) So instead of tweaking skb->truesize, lets change skb->destructor and keep a reference on the owner socket via its sk_refcnt. Fixes: f2f872f9 ("netem: Introduce skb_orphan_partial() helper") Signed-off-by: NEric Dumazet <edumazet@google.com> Reported-by: NMichael Madsen <mkm@nabto.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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