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Wed, 03 Jun 2026 16:40:42 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.600.51.1.1\)) Subject: Re: [BUG] KASAN: slab-use-after-free in nvmet_fc_tgt_q_put From: Shuangpeng In-Reply-To: <56c826df-efe7-4c48-9142-c32c8e3415a8@gmail.com> Date: Wed, 3 Jun 2026 19:40:11 -0400 Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, justin.tee@broadcom.com, nareshgottumukkala83@gmail.com, paul.ely@broadcom.com, hch@lst.de, sagi@grimberg.me, kch@nvidia.com Content-Transfer-Encoding: quoted-printable Message-Id: <4FEE8C73-4DB5-429B-90F5-40F1017B8C24@gmail.com> References: <56c826df-efe7-4c48-9142-c32c8e3415a8@gmail.com> To: Justin Tee X-Mailer: Apple Mail (2.3864.600.51.1.1) Hi Justin, Thanks for taking a look. Just to clarify, the commit e8c2f9fdadee7cbc75134dc463c1e0d856d6e5c7 is only the upstream kernel revision that I tested on. I did not mean to = suggest that this commit introduced the bug, or that it is an NVMe-specific = commit. Regarding fcloop, thanks for pointing that out. I understand that = nvme-fcloop is a loopback transport and may not directly represent a deployment with physical Fibre Channel hardware. I used it because it provides an = in-tree way to trigger the nvmet-fc target path from userspace without requiring = hardware. Best, Shuangpeng > On Jun 3, 2026, at 19:22, Justin Tee wrote: >=20 > Hi Shuangpeng, >=20 > I will look into this and get back to you, but typically the nvme = target fcloop module does not indicate a real life issue when utilizing = the nvmet-fc stack on actual fibre channel hardware. >=20 > > on commit: e8c2f9fdadee7cbc75134dc463c1e0d856d6e5c7 (May 25 2026) > Was wondering what this means? Because it doesn=E2=80=99t look like = that is an nvme commit. >=20 > Regards, > Justin