From: Karsten Graul <kgraul@xxxxxxxxxxxxx>
Date: Fri, 2 Aug 2019 10:16:38 +0200
> From: Ursula Braun <ubraun@xxxxxxxxxxxxx>
>
> The setsockopts options TCP_NODELAY and TCP_CORK may schedule the
> tx worker. Make sure the socket is not yet moved into SMC_CLOSED
> state (for instance by a shutdown SHUT_RDWR call).
>
> Reported-by: syzbot+92209502e7aab127c75f@xxxxxxxxxxxxxxxxxxxxxxxxx
> Reported-by: syzbot+b972214bb803a343f4fe@xxxxxxxxxxxxxxxxxxxxxxxxx
> Fixes: 01d2f7e2cdd31 ("net/smc: sockopts TCP_NODELAY and TCP_CORK")
> Signed-off-by: Ursula Braun <ubraun@xxxxxxxxxxxxx>
> Signed-off-by: Karsten Graul <kgraul@xxxxxxxxxxxxx>
Applied and queued up for -stable.
