From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>, Keith Busch <kbusch@kernel.org>,
Jens Axboe <axboe@kernel.dk>, Simon Liebold <simonlie@amazon.de>
Subject: Re: [PATCH 6.18.y 1/2] blk-mq: pop cached request if it is usable
Date: Fri, 14 Aug 2026 22:33:02 -0400 [thread overview]
Message-ID: <20260814193000.2@kernel.org> (raw)
In-Reply-To: <20260812112545.2630000-1-simonlie@amazon.de>
> [ Upstream commit dc278e9bf2b9513a763353e6b9cc21e0f532954e ]
>
> When submitting a bio to blk-mq, if the task should sleep after peeking
> a cached request, but before it pops it, the plug flushes and calls
> blk_mq_free_plug_rqs, freeing the cached_rqs. This creates a
> use-after-free bug.
Queued the series for 6.18, thanks.
--
Thanks,
Sasha
prev parent reply other threads:[~2026-08-15 2:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-12 11:25 [PATCH 6.18.y 1/2] blk-mq: pop cached request if it is usable Simon Liebold
2026-08-12 11:25 ` [PATCH 6.18.y 2/2] blk-mq: reinsert cached request to the list Simon Liebold
2026-08-15 2:33 ` Sasha Levin [this message]
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