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dmarc=fail (p=quarantine dis=none) header.from=kernel.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=meta.com Received: from pps.filterd (m0089730.ppops.net [127.0.0.1]) by m0089730.ppops.net (8.18.1.11/8.18.1.11) with ESMTP id 6A6F2O3F1024418 for ; Fri, 6 Nov 2026 08:13:48 -0800 Received: from mail.thefacebook.com ([163.114.134.16]) by m0089730.ppops.net (PPS) with ESMTPS id 4hs3r0vq5g-8 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 06 Nov 2026 08:13:48 -0800 (PST) Received: from twshared119346.16.frc2.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c08b:78::c78f) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.56; Fri, 6 Nov 2026 16:13:43 +0000 Received: from devbig197.nha3.facebook.com (localhost [IPv6:::1]) by devbig197.nha3.facebook.com (Postfix) with ESMTP id 8A9752E8C4A3D; Fri, 6 Nov 2026 08:13:29 -0800 (PST) From: Keith Busch To: , "Smith, Kyle" CC: , , , In-Reply-To: References: Subject: Re: [PATCH] nvme: Fix potential gendisk leak in nvme_alloc_ns Message-ID: <179398160956.3651019.17847243207833237031.b4-ty@kernel.org> Date: Fri, 6 Nov 2026 08:13:29 -0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.13.0 X-FB-Internal: Safe X-Authority-Analysis: v=2.4 cv=Cucq4X4D c=1 sm=1 tr=0 ts=6aedfcbc cx=c_pps a=CB4LiSf2rd0gKozIdrpkBw==:117 a=CB4LiSf2rd0gKozIdrpkBw==:17 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=7x6HtfJdh03M6CCDgxCd:22 a=855S8uPTkML1Oy45N9_h:22 a=VwQbUJbxAAAA:8 a=rLEU9whwvvocQAz3oXsA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: H8O3svOfBS5hhRf0-oApJM3dWfXBaT9h X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA2MDA2NCBTYWx0ZWRfX4cGy4NKeGQby OEPVdEYQ7kqr53K3BXYqbebqPKfuoEG1pxmoLLmeB5TDPj/3IJmESReuzNCkvvxoEqwJuWc1abQ Ql2OkaHCLVdFpfsDb0b+fBOGlycGoJ4= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA2MDA2NCBTYWx0ZWRfX5zcwHcyLr/A0 X3U9qL4l2b3isBTIdj2HhY/HVth3SKHR/yISP7Od9RPQ5NFgHSHSZxYoXdFOWykUWVtNRm1v0qF YI9Mbr0T8qjJSpmVV27IOZ+ry18Y60njw13kU+46KA3Qr6yAIVuYqWzHOz9R8EuLMWP//QxFOl5 LxYHPS6Rlo3NI90hi9lAi0arXAARH78GfhnZGlBi2jSQMaDljbre62TzU7S5Hzf07ClTnJeBcZ7 mT66lEZhHNK6dmdCd1TMp3/XrdvE94tw3QP3R6+KrKKvR4v1MvIpz/VAW7B2WLcQXEYDBd09f5R 0//G5A93u4nLQvvYX/eF4dDG28yNsmMoHHPXyF2FSgQm2NrT9JGB+hDuvODeScWDHckDGUNyE9K 8BFrUipvShGcTgPXAa+WY58fxcYD05XtoypdB6OuEpDLEcbhQ8lkp6GGwB2GIu7iKAAbl4lxi8e v7gbkKtxsJPVdAJp1aA== X-Proofpoint-ORIG-GUID: H8O3svOfBS5hhRf0-oApJM3dWfXBaT9h X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-06_05,2026-11-06_01,2025-10-01_01 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