udp: Do not copy destructor if one is not present

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This patch makes it so that if a destructor is not present we avoid trying
to update the skb socket or any reference counting that would be associated
with the NULL socket and/or descriptor. By doing this we can support
traffic coming from another namespace without any issues.

Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Alexander Duyck 2018-05-07 11:08:52 -07:00 • committed by David S. Miller

parent 6053d0f189

commit 04d55b257c

1 changed files with 14 additions and 8 deletions

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net/ipv4/udp_offload.c

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