From: Jakub Kicinski <[email protected]>
Date: Thu, 1 Aug 2019 14:36:01 -0700
> Looks like we were slightly overzealous with the shutdown()
> cleanup. Even though the sock->sk_state can reach CLOSED again,
> socket->state will not got back to SS_UNCONNECTED once
> connections is ESTABLISHED. Meaning we will see EISCONN if
> we try to reconnect, and EINVAL if we try to listen.
>
> Only listen sockets can be shutdown() and reused, but since
> ESTABLISHED sockets can never be re-connected() or used for
> listen() we don't need to try to clean up the ULP state early.
>
> Fixes: 32857cf57f92 ("net/tls: fix transition through disconnect with close")
> Signed-off-by: Jakub Kicinski <[email protected]>
Applied and queued up for -stable.
