From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 6A05F361976 for ; Sat, 15 Aug 2026 06:24:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775048; cv=none; b=d/ZBFsjT1CaDs4h5YEjH4opbF+pWrgkITf9IwLFbXI5Xq0WZA8IOrdKih5Mz6rt1pax3Z2HugcHfu/Enyo9y+njxZwITN2iKb8+QGGWN1AMEH+5q8iGkPXmzDtItIU3OqAexcFwSXvlC2F+KRCWhR7GVWDlByrcgl7e429GOF7o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775048; c=relaxed/simple; bh=1/wfhEUGhDimV6nIaX1bIBcWJGmLe712B4C0e3glMGk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=PbwbSz2N2oB4Yx6W2AsrFVS9ovu3k4t21Nam7eIjLAjSgaMjLPW/2bMVbWffi89qqWBZW+ZEaiGZHPZT7r+sBxRD0yL8YW7piaJvUOc4CTZbVJrN71VvOUSuUobPwoHs8RcxNMwffnt9HVuX7AJ0UBkVkNU7nCRVUCkrGiMUfQ8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=zwzUtlHb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="zwzUtlHb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF37B1F000E9; Sat, 15 Aug 2026 06:24:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786775047; bh=EyCrTIE1tTNlfuyMwqqhfmrdg0yb/7z3A2vY0cQom20=; h=From:To:Cc:Subject:Date:Reply-To; b=zwzUtlHbpTjGdztBYmVRBTB8kA6h3DyScfP8ATzHijLvk8P5Myojk7BgsBeayG62Z 2OmoOyuFjsMfMpHDeQJ2kaHlgzvow3h506V5fYUIMytUrpqRd7UQYnDZLbPfDpzM9u dAW3NbUY058Qy0ZKQW7w72hZucWje5qJmyxb2XrQ= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-72355: netfs: Fix barriering when walking subrequest list Date: Sat, 15 Aug 2026 15:07:14 +0900 Message-ID: <2026081513-CVE-2026-72355-c4db@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1943; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=h8Zu2V5e0eMizMFsbmCL+dIn9yeSM6LTj+ijcsRRezo=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNDE+9b/2YkZHw5fYCw3NvBY8cfvC+QvPZD69SNo09S 7oU3E6pd8SyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBE2j8xzHfuv10ZmyideCPs zssegcgLmjqz3RnmcFy8wShcsoivfGJosn+waoKAtkALAA== 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: netfs: Fix barriering when walking subrequest list Fix the barriering used when walking the subrequest list in retry as there's a possibility of seeing a subreq that's just been added by the application thread. The Linux kernel CVE team has assigned CVE-2026-72355 to this issue. Affected and fixed versions =========================== Issue introduced in 6.10 with commit 288ace2f57c9d06dd2e42bd80d03747d879a4068 and fixed in 7.1.5 with commit be47c047250671c9225c0319ca4695be9b391c59 Issue introduced in 6.10 with commit 288ace2f57c9d06dd2e42bd80d03747d879a4068 and fixed in 7.2-rc2 with commit 5c6ce05e406520290c1d89da97fb3cd70c09137d 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-2026-72355 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/netfs/read_retry.c fs/netfs/write_retry.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/be47c047250671c9225c0319ca4695be9b391c59 https://git.kernel.org/stable/c/5c6ce05e406520290c1d89da97fb3cd70c09137d