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From: Keith Busch <kbusch@kernel.org>
To: <linux-kernel@vger.kernel.org>, "Smith, Kyle" <kyles@hpe.com>
Cc: <linux-nvme@lists.infradead.org>, <axboe@kernel.dk>, <hch@lst.de>,
	<sagi@grimberg.me>
Subject: Re: [PATCH] nvme: Fix potential gendisk leak in nvme_alloc_ns
Date: Fri, 6 Nov 2026 08:13:29 -0800	[thread overview]
Message-ID: <179398160956.3651019.17847243207833237031.b4-ty@kernel.org> (raw)
In-Reply-To: <DM4PR84MB1590C08CB556D28CBA707E74A0772@DM4PR84MB1590.NAMPRD84.PROD.OUTLOOK.COM>

On Thu, 5 Nov 2026 21:54:38 +0000, Smith, Kyle wrote:
> Multiple BUGs were seen after the following sequence:
> 1) ctrl A in subsys A allocs ns nvmeAcAn1 and ns_head nvmeAn1 and sets
>    both as live
> 2) ctrl B in subsys A allocs ns nvmeAcBn1 under ns_head nvmeAn1, but is
>    interrupted or stalled between nvme_init_ns_head and healthy return
> 3) the namespace is removed from subsystem, triggering rescan
> 4) nvmeAcAn1 completes nvme_ns_remove
> 5) nvmeAcBn1 allocation returns through an error pathway in nvme_alloc_ns
> 
> [...]

Thanks, applied to nvme-7.4.

[1/1] nvme: Fix potential gendisk leak in nvme_alloc_ns
      commit: 1e1d36e7610fc2c2c425ea246caf8ea0380d5fd6
--
Keith Busch <kbusch@kernel.org>


      parent reply	other threads:[~2026-11-06 16:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-05 21:54 Smith, Kyle
2026-11-06 10:30 ` hch
2026-11-06 16:13 ` Keith Busch [this message]

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