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From: Keith Busch <kbusch@kernel.org>
To: Nilay Shroff <nilay@linux.ibm.com>
Cc: linux-nvme@lists.infradead.org, hch@lst.de, sagi@grimberg.me,
	gjoyce@linux.ibm.com, chaitanyak@nvidia.com
Subject: Re: [PATCH v2 0/2] nvmet: passthru cleanup and fixup I/O hotpath
Date: Tue, 13 Oct 2026 09:35:16 -0600	[thread overview]
Message-ID: <as5PtFJNZbNT5Hk7@kbusch-mbp> (raw)
In-Reply-To: <20260929112751.2985483-1-nilay@linux.ibm.com>

On Tue, Sep 29, 2026 at 04:56:46PM +0530, Nilay Shroff wrote:
> Hi,
> 
> This series addresses a race in the passthru I/O hotpath where
> concurrently disabling the passthru controller while I/Os are in flight
> can result in a use-after-free bug.
> 
> We were able to reproduce this bug with NVMe/TCP configured and by
> injecting an additional delay into the target-side I/O processing code.
> If the passthru controller is disabled while an I/O is still in flight,
> it results in the following kernel crash:

Thanks, applied to nvme-7.4.


      parent reply	other threads:[~2026-10-13 15:35 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-29 11:26 [PATCH v2 0/2] nvmet: passthru cleanup and fixup I/O hotpath Nilay Shroff
2026-09-29 11:26 ` [PATCH v2 1/2] nvmet: introduce struct nvmet_passthru Nilay Shroff
2026-10-13 14:36   ` Christoph Hellwig
2026-09-29 11:26 ` [PATCH v2 2/2] nvmet: fix use-after-free in passthru I/O hotpath Nilay Shroff
2026-10-13 14:36   ` Christoph Hellwig
2026-10-13 15:35 ` Keith Busch [this message]

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