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 D91BB367B68 for ; Tue, 9 Jun 2026 12:26:18 +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=1781007979; cv=none; b=BJUzB7dV65b8GjXWsdFZNt2EAZ+xekQcyMNwoImAYXwZYzhf5QYipSYOytJ04nSFp999OwPzL2ahgUbkwf946MTv49YObU7ZKrIwSBILEoem5fL1UdfiBiMMN/OHTz3uIKUD0OSc8k+5kptJm8mudQYgyEIhr0Id6/G52fXWSC8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781007979; c=relaxed/simple; bh=hugNh4mLL5/PPmaJvHbZIHEHn/2BhvAR2sQqR0lY0fI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=C/fbWHFcY5D6Kp1+C8wjvJaKh50MiODxxMzhFOv3RmgtAaaG8/S88yUAz+dw1bkFXJqXLh7JsVac29QNtQDzBkGtsWga2ktyhRSAqcBmZ5nvjoJVxTYWAN6aqAFqNpgHJvBiF7ef2O17z+ry090cumx8g1JRDtj3JnDsFrIoEmY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gMZ48klH; 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="gMZ48klH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D192A1F00893; Tue, 9 Jun 2026 12:26:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1781007978; bh=vw6rqS5VO1Fd1mWlIpR0J42MxapjUhujga8CS0On0R8=; h=From:To:Cc:Subject:Date:Reply-To; b=gMZ48klHMCiw5YfHrSdly5nUkPjY0daW4JVhl7BfO2mBviOSOGovCFFGQXMbLQbXn PRsuCGPC6WknooHah2jipYyByERqJwiR7Au3welbREXxNOk03RftB18ibDpJTjOBwd 1SU3dOOGAp0kww2YBFTalrbZITx+aZSKjtfiNV54= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-46327: dm: fix unlocked test for dm_suspended_md Date: Tue, 9 Jun 2026 14:25:10 +0200 Message-ID: <2026060909-CVE-2026-46327-aaef@gregkh> X-Mailer: git-send-email 2.54.0 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=2631; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=a+8W2p23k20uD5AOxVfOPMEoOOUNLNF+FgpoJE2sL4c=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkabKo287/tyfedzza97du+vS7isQp8e+vKJ3/e6cV/O +7O34u/O2JZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAi7X8ZFuy3PMDR8CBg4l1p ndx7L2Y93Zc0W4hhfmzqiqhJ5+N61/yepbms7N2fY2WtJwA= 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: fix unlocked test for dm_suspended_md The function dm_blk_report_zones tests if the device is suspended with the "dm_suspended_md" call. However, this function is called without holding any locks, so the device may be suspended just after it. Move the call to dm_suspended_md after dm_get_live_table, so that the device can't be suspended after the suspended state was tested. The Linux kernel CVE team has assigned CVE-2026-46327 to this issue. Affected and fixed versions =========================== Issue introduced in 6.12.34 with commit f9c1bdf24615303d48a2d0fd629c88f3189563aa and fixed in 6.12.75 with commit 175ac0a6115400278d3900f5a04a58b17b3f6cd0 Issue introduced in 6.16 with commit 37f53a2c60d03743e0eacf7a0c01c279776fef4e and fixed in 6.18.14 with commit 7a3385e97af2b6f485fef11e82d8c29adee4be93 Issue introduced in 6.16 with commit 37f53a2c60d03743e0eacf7a0c01c279776fef4e and fixed in 6.19.4 with commit d809a36692ee1394cac85ce6ba7cf8ea58da5812 Issue introduced in 6.16 with commit 37f53a2c60d03743e0eacf7a0c01c279776fef4e and fixed in 7.0 with commit 24c405fdbe215c45e57bba672cc42859038491ee Issue introduced in 6.15.3 with commit d19bc1b4dd5f322980b1f05f79b2ea4f0db10920 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-2026-46327 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-zone.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/175ac0a6115400278d3900f5a04a58b17b3f6cd0 https://git.kernel.org/stable/c/7a3385e97af2b6f485fef11e82d8c29adee4be93 https://git.kernel.org/stable/c/d809a36692ee1394cac85ce6ba7cf8ea58da5812 https://git.kernel.org/stable/c/24c405fdbe215c45e57bba672cc42859038491ee