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 51CA34EBAFC for ; Wed, 16 Sep 2026 10:35:33 +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=1789554947; cv=none; b=U50B+o7CI1FNNdJhWMjhRSZjjNnLfZDk3Cl4KlF2R3L8HUX/kz13GOiTUvJ4eXbGj7zcSgM1KHO9pT4UKiYVJAVmZsWDp2KSnLarkM16B4H7WK5JKOFyrXDiTdINXYoTDGwlUttFyTeSD+a0Js++n3QNKy6wlW6zI1lrVzJfBUs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789554947; c=relaxed/simple; bh=/Tpx871Q8CgEpyJO+xjf+nun3X6+GGxkCmS0Ve/eLgk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ZlCRNTKBs+/zStWRe0UVN5OufaWFrWZdOscVrEX5BQTGNuMDBg/MQXfYTVrrTLbRjuzaRMaqCMRBv8/iH6aWeiO0i6AnRuojgqfS5/Nkqe6nVuilHSVSQFlRMWqtpB54HIoJ7SLnTHi9aF+kua2fZwXYPXSEdw06VxCIxOYBqXA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KiLuaIG0; 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="KiLuaIG0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A8BF51F00893; Wed, 16 Sep 2026 10:35:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789554933; bh=Q3pdwXAWQlqxxiMmLHQ7A8NLrjLgb8ZT3wbJq/5vHH0=; h=From:To:Cc:Subject:Date:Reply-To; b=KiLuaIG0Zv31FvKo5Hzn6CNLqfXmdl6SRq4Z694c/NKQxn2FwF1erfEeEJ6iO0rOm 8PsNBQiTshLvgupgLVQfrC2NQaBgjhQOU8vZXXW1R32tUWgDetM+kgRbb8fRSboul2 Cucguyl4hPgF5vnM2QRSX/zPdP3Dl1E+TJgT6CqE= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-89853: scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump Date: Wed, 16 Sep 2026 11:29:43 +0100 Message-ID: <2026091617-CVE-2026-89853-e675@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=3903; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=2Q783WeFZWwwuzavxIWJLLiHw9++u0YT+Do5EGAHPw4=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmr8ms3ihRkaulKFLEnvOte8NVJrc7ZIdz6zsb6sDOf1 6pmpxzqiGVhEGRikBVTZPmyjefo/opDil6Gtqdh5rAygQxh4OIUgIkknGCYZ/khTzvt38mJSW+y l3tv3rvBgcnDi2HBjq3p7AGHFeUsLNUPJcfvazSYlH4QAA== 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: scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump qla2x00_free_fce_trace() freed and cleared ha->fce while holding only fce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and qla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the buffer) under hardware_lock and never take fce_mutex. A debugfs FCE disable could therefore free the DMA buffer between a dump's NULL check and its copy, resulting in a use-after-free. Unpublish ha->fce under hardware_lock, then release the lock and free the DMA buffer (dma_free_coherent() may sleep). A concurrent dump either completes its check and copy with the buffer still valid, or observes ha->fce == NULL and skips it. The Linux kernel CVE team has assigned CVE-2026-89853 to this issue. Affected and fixed versions =========================== Issue introduced in 5.10.235 with commit 3a5a789494875376d1f8063ec5ecc6beafda2ce1 and fixed in 5.10.270 with commit 423487f03e325b8665d20a2a3171fe012b1a4fa9 Issue introduced in 5.15.179 with commit 73d3d3c66f108bc47922490f8500842530139975 and fixed in 5.15.221 with commit 7bd308cd893e8cce023d03a40a2f0adccaff0175 Issue introduced in 6.1.129 with commit 57c029cab0d908942e3ed9ff9fd0361144d01944 and fixed in 6.1.188 with commit edc464a4fc96e2720d166e7cc7e7a6827b086760 Issue introduced in 6.6.78 with commit 217230bc8796a922d5b15a9a94ec4414b2d2b3e3 and fixed in 6.6.157 with commit 6003e79148eca73d7cafb076f5be47e234d543d0 Issue introduced in 6.12.14 with commit 2cf3c3fe9a11aa168e80c966494c58548b9aed5d and fixed in 6.12.110 with commit ef9b89f6c92274c3670403fd06130ca25f685050 Issue introduced in 6.14 with commit 841df27d619ee1f5ca6473e15227b39d6136562d and fixed in 6.18.51 with commit 8e7a26931b6111583cfeaf49c068f26524dc3af2 Issue introduced in 6.14 with commit 841df27d619ee1f5ca6473e15227b39d6136562d and fixed in 7.2.5 with commit 41ef7edde27ac87d55ffc703da44e78aa8c2e896 Issue introduced in 6.14 with commit 841df27d619ee1f5ca6473e15227b39d6136562d and fixed in 7.3-rc1 with commit 53298efcbbb0f0438366d45cb7ed7e6d93dd5531 Issue introduced in 6.13.3 with commit a89872a61b914378591f16e428dd221c5e2059b2 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-2026-89853 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: drivers/scsi/qla2xxx/qla_init.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/423487f03e325b8665d20a2a3171fe012b1a4fa9 https://git.kernel.org/stable/c/7bd308cd893e8cce023d03a40a2f0adccaff0175 https://git.kernel.org/stable/c/edc464a4fc96e2720d166e7cc7e7a6827b086760 https://git.kernel.org/stable/c/6003e79148eca73d7cafb076f5be47e234d543d0 https://git.kernel.org/stable/c/ef9b89f6c92274c3670403fd06130ca25f685050 https://git.kernel.org/stable/c/8e7a26931b6111583cfeaf49c068f26524dc3af2 https://git.kernel.org/stable/c/41ef7edde27ac87d55ffc703da44e78aa8c2e896 https://git.kernel.org/stable/c/53298efcbbb0f0438366d45cb7ed7e6d93dd5531