From: patchwork-bot+bluetooth@kernel.org
To: Sungwoo Kim <iam@sung-woo.kim>
Cc: marcel@holtmann.org, luiz.dentz@gmail.com, daveti@purdue.edu,
luiz.von.dentz@intel.com, linux-bluetooth@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Bluetooth: sco: Fix a race condition in sco_sock_timeout()
Date: Fri, 26 Jun 2026 11:16:49 +0000 [thread overview]
Message-ID: <178247260901.3816447.13954795809644972241.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260624213304.1460149-2-iam@sung-woo.kim>
Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>:
On Wed, 24 Jun 2026 17:33:04 -0400 you wrote:
> sco_sock_timeout() runs asynchronously and lock_sock(sk). If the socket
> is closing while the timer is running, it holds the same lock
> (lock_sock(sk)) twice, leading to a deadlock.
>
> CPU 0 CPU 1
> ==================== ======================
> sco_sock_close()
> sco_sock_timeout()
> lock_sock(sk) // <-- LOCK
> __sco_sock_close()
> sco_chan_del()
> sco_conn_put()
> sco_conn_free()
> disable_delayed_work_sync()
> lock(sk) // <-- SAME LOCK
>
> [...]
Here is the summary with links:
- Bluetooth: sco: Fix a race condition in sco_sock_timeout()
https://git.kernel.org/bluetooth/bluetooth-next/c/cddcc54a7afe
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
prev parent reply other threads:[~2026-06-26 11:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-24 21:33 [PATCH] Bluetooth: sco: Fix a race condition in sco_sock_timeout() Sungwoo Kim
2026-06-24 22:32 ` Sungwoo Kim
2026-06-25 0:22 ` bluez.test.bot
2026-06-26 11:16 ` patchwork-bot+bluetooth [this message]
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