Gal Pressman 79074a72d3 net: Flush deferred skb free on socket destroy ...

The cited Fixes patch moved to a deferred skb approach where the skbs
are not freed immediately under the socket lock.  Add a WARN_ON_ONCE()
to verify the deferred list is empty on socket destroy, and empty it to
prevent potential memory leaks.

Fixes: f35f821935 ("tcp: defer skb freeing after socket lock is released")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2022-01-17 13:07:47 +00:00

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