From: "Ali Ahmet Memiş" <aliamemis@disroot.org>
To: Jiaming Zhang <r772577952@gmail.com>
Cc: marcel@holtmann.org, luiz.dentz@gmail.com,
linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org,
kees@kernel.org, kuba@kernel.org, nicoyip.dev@gmail.com,
suunj1331@gmail.com, syzkaller@googlegroups.com,
Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>,
Pauli Virtanen <pav@iki.fi>
Subject: Re: [Linux Kernel Bug] possible deadlock in l2cap_chan_connect
Date: Fri, 11 Sep 2026 21:38:05 +0300 [thread overview]
Message-ID: <20260911183811.374433-1-aliamemis@disroot.org> (raw)
In-Reply-To: <CANypQFabseTuRiyz2pGkc_Qj0moGDnY7KEp1qdTOqkw6gAL3hw@mail.gmail.com>
On Sat, Sep 12, 2026 at 12:59:09AM +0800, Jiaming Zhang wrote:
> We are actively working on a patch, if the above solution is acceptable,
> I would be happy to submit a formal patch for review.
This is the same lock inversion syzbot reported as 74071deb, and Mikhail
already has a fix for it under review:
https://lore.kernel.org/linux-bluetooth/20260904012028.77590-1-mikhail.v.gavrilov@gmail.com/
It uses the same approach you describe, queue the confirmation and let
krfcommd handle it under rfcomm_mutex.
next prev parent reply other threads:[~2026-09-11 18:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-11 16:59 Jiaming Zhang
2026-09-11 18:38 ` Ali Ahmet Memiş [this message]
2026-09-29 7:25 ` Mikhail Gavrilov
2026-09-29 7:41 ` Jiaming Zhang
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