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Before converting a 'socket pointer' into inet socket,
use sk_fullsock() to detect timewait or request sockets.
Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: Dmitry Vyukov <[email protected]>
Tested-by: Dmitry Vyukov <[email protected]>
Cc: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>