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 60451364929 for ; Sat, 15 Aug 2026 06:17:19 +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=1786774640; cv=none; b=LFbxbG7nBHEiwSOMJd++IxVlKfuEdzoTX0ObTzc+UUsmXfiMkYnGsl7jwCetje5hLE28WfPZF2+IlFLhwlZxSKn4poTu/j4ATGqtP8ymqQie5wvD/mHWK6v0gcyNYAytYR7PHEg/9U9QYaVDrb8sq+anyNxx+CqmCCk6qW8QHJU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786774640; c=relaxed/simple; bh=H58y1QWnDkasJuqqyuaHW4dkEug33xa6LUVrswRj+58=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=eW7sf77YOqDfGAABZvFrBaojg0g+4/FRmv24xU9ST994tBaTzTi3jOUelI1BXCABjTZNQama078CRod38mewKyqKEJ6jtPVgQfeHPJxNFa8+nF4yuFXj+yyVLHvRdmjojsQfO9NjPDJ3JFXdt/ablq2lCv9gVk7rvzZ98rMsVYk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=w5Fe41+X; 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="w5Fe41+X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 710B51F000E9; Sat, 15 Aug 2026 06:17:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786774639; bh=emThBjJB+i3u+MQzTtox1PdpVWvdeCe0CxZw6F9Ma3A=; h=From:To:Cc:Subject:Date:Reply-To; b=w5Fe41+Xh4PlRVIgvwOzH2gWz0M4W8qNmPPzTL0zrA5/iSsr1CwRZHo9kOpybcSTm BoEsHzRpe6Xm7pBAXJlWJTtdOPZ4+Hglwesi5RZJZPDCUx/VGgoKqZ3S1/quEsqiWO 8sX2BCTYWJiivEUjDbv+DxfIfweaKko+L0pHJysw= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-72224: nvdimm/btt: Free arenas on btt_init() error paths Date: Sat, 15 Aug 2026 15:05:03 +0900 Message-ID: <2026081548-CVE-2026-72224-a5ef@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=3404; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=GnCQ8CPW3c8Z37pgtRRuG4tSkOWa4c+q5rYROI+1sz4=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNDGeMdJ21i648/FfDrRf3ITq1/P2Jxpo3h65KegQ7i amvVTftiGVhEGRikBVTZPmyjefo/opDil6Gtqdh5rAygQxh4OIUgIk8XMWwYGXs94Oe84+eF63+ uyJR8G196PWUBQzzXSp1T7afWqmYpFLc791x7/3Z0sXdAA== 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: nvdimm/btt: Free arenas on btt_init() error paths The arenas allocated by discover_arenas() or create_arenas() are not freed on some error paths in btt_init(). This leaks memory when BTT initialization fails. Call free_arenas() from the affected error paths to release the allocations. [ as: commit message and log edits ] The Linux kernel CVE team has assigned CVE-2026-72224 to this issue. Affected and fixed versions =========================== Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 5.10.261 with commit 9ab5293d9ac3f2c4232220e563d04701f5f44607 Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 5.15.212 with commit 68c967e105d50f885e02b0dbdc9211fd5f84bdcd Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 6.1.178 with commit 0b63788093ff6ccfffe6e87de9e08aeeb406599c Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 6.6.145 with commit 5804e6a6912b5a1e47c821777d69191d69a3fe64 Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 6.12.97 with commit 52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4 Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 6.18.40 with commit f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 7.1.5 with commit 7e49684d90faa34ff6d5586be658e986d9d475ac Issue introduced in 4.2 with commit 5212e11fde4d40fa627668b4f2222d20db488f71 and fixed in 7.2-rc1 with commit 1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57 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-2026-72224 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/nvdimm/btt.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/9ab5293d9ac3f2c4232220e563d04701f5f44607 https://git.kernel.org/stable/c/68c967e105d50f885e02b0dbdc9211fd5f84bdcd https://git.kernel.org/stable/c/0b63788093ff6ccfffe6e87de9e08aeeb406599c https://git.kernel.org/stable/c/5804e6a6912b5a1e47c821777d69191d69a3fe64 https://git.kernel.org/stable/c/52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4 https://git.kernel.org/stable/c/f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b https://git.kernel.org/stable/c/7e49684d90faa34ff6d5586be658e986d9d475ac https://git.kernel.org/stable/c/1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57