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 731233D1CCA for ; Fri, 28 Aug 2026 06:51:05 +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=1787899866; cv=none; b=cshRMoB39GJjhdoeQY6y4LAoqLspD8P+H62H9vhqw2xkSl505Dq6u3FjK72bVtvYTY4zINQURew5ZOyFp93KQuAG1CkLnSDSY+OsOaFeTydVRq0L+g76N7ZawRQSahSbdC28bEZHi9TFXOlvG/4OXcLPavFBjIQPjEUowE2NIQo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787899866; c=relaxed/simple; bh=5/RVOffpHMZmju7G4ghiU7fcslSms31kJFTSyuV+xr4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=GIJ67X7IRaWfAEoWVuevtonMSFZ6YoWl1KPzKrjzwSn7iSeM+NPZW+yMXl+SDkUBTxLbC+Uwfp/dCdQuObcuba+R5cuf25LqZdI6Azo/SlfoLnO7NyWy7d8fNIXHi7HOU8aFDK8OZmbSGkfegxTslZe31yWPDGf7F9MaN/qv3eM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=omQ//W/6; 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="omQ//W/6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCF841F000E9; Fri, 28 Aug 2026 06:51:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787899865; bh=CR7MAUxzoLN1wSLY/18/snPA3PkTqjfSAlucHGJ3sRc=; h=From:To:Cc:Subject:Date:Reply-To; b=omQ//W/6/uSJXfQj47PwvaewfV9AkN3RezQnJ8ufUYwzMD/ukokyrxGKW/NsUOueQ GnwMmkc7vI10tuuefeElRtMzHzy0NOjUFt9iDDzSbWmTzTlOM58ZPwG5GPRvYRkHW7 mfdxW84igswCYHzv3gm3y3DTdbmY6YJLr/YCWPt0= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80643: EDAC/igen6: Fix call trace due to missing release() Date: Fri, 28 Aug 2026 08:49:20 +0200 Message-ID: <2026082841-CVE-2026-80643-84ef@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=2582; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=bPW313J0Nag9eoTdQpjS1JZE957agz5GcLU8BhC+QAI=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkT9T1/vI5Y7cMwbf7Vl9Mjvpn66vf7nypd2R0sot91e N2FshKujlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZjIuUaGuZKRQtGWh3RzHu09 Md3jUvgVpqd++QwLuq256hwenPu+O6K7YKNLzJ8Ow8grAA== 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: EDAC/igen6: Fix call trace due to missing release() When unloading the igen6_edac driver, there is a call trace: Device '(null)' does not have a release() function, it is broken and must be fixed. See Documentation/core-api/kobject.rst. WARNING: drivers/base/core.c:2567 at device_release+0x84/0x90, CPU#5: rmmod/127209 ... RIP: 0010:device_release+0x84/0x90 Call Trace: kobject_put+0x8c/0x220 put_device+0x17/0x30 igen6_unregister_mcis+0xa2/0xe0 [igen6_edac] igen6_remove+0x82/0xb0 [igen6_edac] ... Fix the call trace by providing empty release() functions for the memory controller devices. The Linux kernel CVE team has assigned CVE-2026-80643 to this issue. Affected and fixed versions =========================== Issue introduced in 5.11 with commit 10590a9d4f23e0a519730d79d39331df60ad2079 and fixed in 6.18.40 with commit 9a84ced0243c74aa431ec287555054c69e6167d1 Issue introduced in 5.11 with commit 10590a9d4f23e0a519730d79d39331df60ad2079 and fixed in 7.1.5 with commit a341302c5126ef96bb45286224d67ef60a24281e Issue introduced in 5.11 with commit 10590a9d4f23e0a519730d79d39331df60ad2079 and fixed in 7.2 with commit ab1f9d466c7d83ab0d2a529e07984e53b5960dcd 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-2026-80643 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/edac/igen6_edac.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/9a84ced0243c74aa431ec287555054c69e6167d1 https://git.kernel.org/stable/c/a341302c5126ef96bb45286224d67ef60a24281e https://git.kernel.org/stable/c/ab1f9d466c7d83ab0d2a529e07984e53b5960dcd