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 6CFA63F58D9 for ; Fri, 11 Sep 2026 19:56:56 +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=1789156628; cv=none; b=PqCXq+P+LObAS1ycjeXUwv6Z90zmOL+py/tJawNh8FQvhF1RvzJ2xIY32CXCifLe3cqcqpOhonFWeYWVC8TIELbtBKaEl+ALgWQ4QPGeNXw8REhHvn9PIXikaJSzHS/pFEckP9ZjJFCgvG1wLbLlnnpJrgZGnoOte9QVsLcvdEg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789156628; c=relaxed/simple; bh=YCfN6p3Ro5HE9dDPRfHCUizzOAYaNaOKnlHfcTVZfIw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=pEhkmarnPzgHJjJEQvB9SQfho++fzHBD7W97ePvQfcbJk5Bn8BbQgEaFGHU3fj7aLH/aq1yMlrAU8CqmcLqEE4uqx+kobWauGDiZcJpKUFt5bRz2XYCo7YVewpgHPctPmG/x3/DeZ84DmMtv1ou49k5gFjiAUpsZYFnWlNtlIro= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=E+9E2pxV; 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="E+9E2pxV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 725351F00893; Fri, 11 Sep 2026 19:56:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789156613; bh=8/LxzaqJN+JakR6JAaXqlEnIAjOkpLqNpTV6ZNuNzN0=; h=From:To:Cc:Subject:Date:Reply-To; b=E+9E2pxV1S684E4ce3n9geaaBcerrInUrwVlXgTa0mZFuJMUjvWV0k0a6GO54+vDm MEMr5taaqR5bksI+aqAjeRidgb3SChW8wLZw8z8ym1TltPeb0soBrOT1S11Y+7WXUn 2dLFFt3yc3k7Hc6i02mcoyqzoTOh0HeAZj1zV0q8= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-89575: dm raid1: reserve space for NUL-terminator in build_constructor_string() Date: Fri, 11 Sep 2026 21:44:24 +0200 Message-ID: <2026091127-CVE-2026-89575-c71c@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=2393; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=qMjf94F4IxMJz4iK7NcaU4IwRsc8Jhuwwj8GF06WICs=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlLItPfm6VWh/5k8vk8Zy1TebqsaIlLRotYzcnday/uC vK0e2zSEcvCIMjEICumyPJlG8/R/RWHFL0MbU/DzGFlAhnCwMUpABNxPMKwYP0L59i/Hc9dGR0u f+GYeJj7w2u1PwwLVhwy1d0osi961/xnyyYXNnNESi3UAwA= 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: dm raid1: reserve space for NUL-terminator in build_constructor_string() Reserve space for the termination NUL after the maximum 20 decimal digits of a long long value to avoid buffer overflow in sprintf(). The Linux kernel CVE team has assigned CVE-2026-89575 to this issue. Affected and fixed versions =========================== Issue introduced in 2.6.31 with commit f5db4af466e2dca0fe822019812d586ca910b00c and fixed in 6.12.109 with commit 0a3657ebd6b517b60cdc5123894047616974e25b Issue introduced in 2.6.31 with commit f5db4af466e2dca0fe822019812d586ca910b00c and fixed in 6.18.50 with commit 644140527ae494cedf3b5c0ecd16287deaea7a66 Issue introduced in 2.6.31 with commit f5db4af466e2dca0fe822019812d586ca910b00c and fixed in 7.2.4 with commit f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b Issue introduced in 2.6.31 with commit f5db4af466e2dca0fe822019812d586ca910b00c and fixed in 7.3-rc1 with commit 73c37fe54cd056d07461b142ab0b8b81e1ef6ad8 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-2026-89575 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/md/dm-log-userspace-base.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/0a3657ebd6b517b60cdc5123894047616974e25b https://git.kernel.org/stable/c/644140527ae494cedf3b5c0ecd16287deaea7a66 https://git.kernel.org/stable/c/f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b https://git.kernel.org/stable/c/73c37fe54cd056d07461b142ab0b8b81e1ef6ad8