From: Stefano Garzarella <sgarzare@redhat.com>
To: Peilin Ye <yepeilin.cs@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Peilin Ye <peilin.ye@bytedance.com>,
George Zhang <georgezhang@vmware.com>,
Dmitry Torokhov <dtor@vmware.com>, Andy King <acking@vmware.com>,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net v2 2/2] vsock: Set socket state back to SS_UNCONNECTED in vsock_connect_timeout()
Date: Mon, 8 Aug 2022 09:56:40 +0200 [thread overview]
Message-ID: <20220808075640.5it462iozqgecxih@sgarzare-redhat> (raw)
In-Reply-To: <5cf1337b4f6e82bc0a4eb0bef422a53dcc9d584a.1659862577.git.peilin.ye@bytedance.com>
On Sun, Aug 07, 2022 at 02:00:46AM -0700, Peilin Ye wrote:
>From: Peilin Ye <peilin.ye@bytedance.com>
>
>Imagine two non-blocking vsock_connect() requests on the same socket.
>The first request schedules @connect_work, and after it times out,
>vsock_connect_timeout() sets *sock* state back to TCP_CLOSE, but keeps
>*socket* state as SS_CONNECTING.
>
>Later, the second request returns -EALREADY, meaning the socket "already
>has a pending connection in progress", even if the first request has
>already timed out.
>
>As suggested by Stefano, fix it by setting *socket* state back to
>SS_UNCONNECTED, so that the second request will return -ETIMEDOUT.
>
>Suggested-by: Stefano Garzarella <sgarzare@redhat.com>
>Fixes: d021c344051a ("VSOCK: Introduce VM Sockets")
>Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
>---
>(new patch in v2)
Thanks for sending this :-)
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
next prev parent reply other threads:[~2022-08-08 7:57 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-04 2:09 [PATCH RFC net-next] vsock: Reschedule connect_work for O_NONBLOCK connect() requests Peilin Ye
2022-08-04 6:59 ` Stefano Garzarella
2022-08-04 23:44 ` Peilin Ye
2022-08-05 12:42 ` Stefano Garzarella
2022-08-05 18:27 ` Peilin Ye
2022-08-07 9:00 ` [PATCH net v2 1/2] vsock: Fix memory leak in vsock_connect() Peilin Ye
2022-08-07 9:00 ` [PATCH net v2 2/2] vsock: Set socket state back to SS_UNCONNECTED in vsock_connect_timeout() Peilin Ye
2022-08-08 7:56 ` Stefano Garzarella [this message]
2022-08-08 7:55 ` [PATCH net v2 1/2] vsock: Fix memory leak in vsock_connect() Stefano Garzarella
2022-08-08 17:45 ` Peilin Ye
2022-08-08 18:04 ` [PATCH net v3 " Peilin Ye
2022-08-08 18:05 ` [PATCH net v3 2/2] vsock: Set socket state back to SS_UNCONNECTED in vsock_connect_timeout() Peilin Ye
2022-08-10 9:00 ` [PATCH net v3 1/2] vsock: Fix memory leak in vsock_connect() patchwork-bot+netdevbpf
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