From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 42A528F58 for ; Thu, 18 Sep 2025 13:34:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758202456; cv=none; b=bQ1rMu2xH0mbEzynYgo2uxaCEAnxRrfztZsAmm+qO84Ct2I1zsfIJcwEo0/c+AQzR+ypT+A6QmHS7+G3j9lQp88KZ7k9NaWGjgIcshVtOZT17Hv7c4ruXz5Y/MPxddHKD9rF2ai+I81VF5eauZxW2njpgqc32aHvo7toxJjodV0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758202456; c=relaxed/simple; bh=LZ7dtTH2cOvlIiV43NxR2eQANl+fgYULYrZasyG1tOc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dIXvphLRibK4jEtt6ftSIvipAlLI1YiHhciUC+qm1lZZHpuqsUqnRiwi5iNA+I5xuUCJ0YkMB0Y4ypkhVnpCZd3JmKWer3PWSOUSSeS/GhNlMqQJWxP+6Pp+RcoGv3I2wgfgRSbjMEIz8kR7q9INSh9PSrKSVzIxi2PtyVP7s9g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=acgr7wz5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="acgr7wz5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6FB2EC4CEE7; Thu, 18 Sep 2025 13:34:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1758202455; bh=LZ7dtTH2cOvlIiV43NxR2eQANl+fgYULYrZasyG1tOc=; h=From:To:Cc:Subject:Date:Reply-to:From; b=acgr7wz5J0KpxlN3289UFfZkgzDIZEbm6g64elTZRx0N/tIiAfiAp/4owkt/4Z3qZ dkxldmpOEU8gT3OGrCl/WQftJM2fnh+1pkFrE7HRlKRHFBFGn04ZLRzBRU1TFIvJkg oyAbz7+hLANeLDF+Vmzrix8o7ABwpx9tazNyObHw= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-50385: NFS: Fix an Oops in nfs_d_automount() Date: Thu, 18 Sep 2025 15:33:59 +0200 Message-ID: <2025091852-CVE-2022-50385-7787@gregkh> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=2570; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=/2gQ5lTs+/mOU2FF+VIQqu8VwPg1gowIyEdtbrDkqY4=; b=owGbwMvMwCRo6H6F97bub03G02pJDBlnuBzecK06sCIo8/RWB//nrlemJOiq+PhvSN1/9N/uw P9Bk9ZmdsSyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBELDkY5vuGhmnYtE5lKnzV fTF93YTnMxvDGxkWHKkvb36ps7MxZfnG/XmfWN/8/RyhBAA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: NFS: Fix an Oops in nfs_d_automount() When mounting from a NFSv4 referral, path->dentry can end up being a negative dentry, so derive the struct nfs_server from the dentry itself instead. The Linux kernel CVE team has assigned CVE-2022-50385 to this issue. Affected and fixed versions =========================== Issue introduced in 4.1 with commit 2b0143b5c986be1ce8408b3aadc4709e0a94429d and fixed in 5.10.163 with commit 5458bc0f9df639d83471ca384152cc62dbee0aeb Issue introduced in 4.1 with commit 2b0143b5c986be1ce8408b3aadc4709e0a94429d and fixed in 5.15.86 with commit f12377abac15fb4e8698225ac386894f8ae63598 Issue introduced in 4.1 with commit 2b0143b5c986be1ce8408b3aadc4709e0a94429d and fixed in 6.0.16 with commit b6fd25d64b0de27991d6bd677f0adf69ad6ff07a Issue introduced in 4.1 with commit 2b0143b5c986be1ce8408b3aadc4709e0a94429d and fixed in 6.1.2 with commit 6f3d56783fbed861e483736a7001bdafd0dddd53 Issue introduced in 4.1 with commit 2b0143b5c986be1ce8408b3aadc4709e0a94429d and fixed in 6.2 with commit 35e3b6ae84935d0d7ff76cbdaa83411b0ad5e471 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2022-50385 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: fs/nfs/namespace.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/5458bc0f9df639d83471ca384152cc62dbee0aeb https://git.kernel.org/stable/c/f12377abac15fb4e8698225ac386894f8ae63598 https://git.kernel.org/stable/c/b6fd25d64b0de27991d6bd677f0adf69ad6ff07a https://git.kernel.org/stable/c/6f3d56783fbed861e483736a7001bdafd0dddd53 https://git.kernel.org/stable/c/35e3b6ae84935d0d7ff76cbdaa83411b0ad5e471