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 63B4052FE41 for ; Wed, 14 Oct 2026 13:31:10 +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=1791984676; cv=none; b=Vlma+m+aPrSnSs7RuKrBFhshKgGAyZ6hY4IN3FCgIN03zuwPvsQn3NVB0fMDOTsS/pTPkPvriigY4sE3ylahpOlvl5i9E+az8Sc28myqhxW1PMFDoPribeQbg23E+uhB+l72rBcny3I9R6FoAwH6CUdKNNbX+WgjMvcR0Idsp+Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791984676; c=relaxed/simple; bh=HNjPoCdkGbWi4h1gMp+daXheCqejc9nbQEptF3H62Gg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=sPK6ZsBNhYSMMId94iTR1yUISf/oKpbz76i1e47syFApVlRnYb1l2MQFQOoFUNBdQw+EXbIu09emoQkG+UWcrjVRA2PcXW+Ws5CxfMtX2qURhpdHj6QpYzcntWxFWLteyPkhrov8tHPesPI9TnsXaWf3TLvjtMNckz/UH3N6XXU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vnwKyQrW; 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="vnwKyQrW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F16871F000FF; Wed, 14 Oct 2026 13:31:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791984669; bh=Ih9R9SEYgLlbIe5aYFztVRuLxoge9nUAvpzUhtgWMPE=; h=From:To:Cc:Subject:Date:Reply-To; b=vnwKyQrW9EJqJ5tDcEAKo1Ggp55kGlVMJa/9fqZo9JyHw3CCo0GrDj68bdZDbMTdr TMLXJT0sfLsUzYp9dYPGLKSImWIOLAlJaAPZUMa4olPhpXwRUiRKeTUNFophh5mawk kBOmohwuB/bJl1CIns0Kn6tEk2J29sRbp3p3a6oM= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-98409: watchdog: rtd119x: Avoid division by zero Date: Wed, 14 Oct 2026 15:30:07 +0200 Message-ID: <2026101404-CVE-2026-98409-e02e@gregkh> X-Mailer: git-send-email 2.56.0 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=2508; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=Rlb1X/8+YSlWEm7xl7bo74dDpjqE/4apzxQUVeBstms=; b=owGbwMvMwCRo6H6F97bub03G02pJDFnnm+/sd/zf7Xp6Q8nEz8uMP1ypvKOculHv0IdDzwK/8 uXfztHW7IhlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJ5D9lmCue3n9e/uixV1u3 acde8Prh+f5nWxLDgk0SZvaRbHEO5lezL379JX6Kx5ojBAA= 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: watchdog: rtd119x: Avoid division by zero clk_get_rate() could return 0. Avoid a division by zero panic. The Linux kernel CVE team has assigned CVE-2026-98409 to this issue. Affected and fixed versions =========================== Issue introduced in 4.16 with commit 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and fixed in 6.6.158 with commit 757c721545b9ffac5c3042a0cd3685ea28af7e81 Issue introduced in 4.16 with commit 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and fixed in 6.12.112 with commit 1f22001b34984350844d629862f70934770cb796 Issue introduced in 4.16 with commit 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and fixed in 6.18.54 with commit b4ede87765a2e58ca4f18f5f8037c4826b9cc93f Issue introduced in 4.16 with commit 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and fixed in 7.2.8 with commit 8a12e049d517d7dee78500633f8f0e47262a67e0 Issue introduced in 4.16 with commit 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and fixed in 7.3-rc4 with commit 5af7d2cbd20f893def03c8310a460ade66a5d822 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-2026-98409 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/watchdog/rtd119x_wdt.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/757c721545b9ffac5c3042a0cd3685ea28af7e81 https://git.kernel.org/stable/c/1f22001b34984350844d629862f70934770cb796 https://git.kernel.org/stable/c/b4ede87765a2e58ca4f18f5f8037c4826b9cc93f https://git.kernel.org/stable/c/8a12e049d517d7dee78500633f8f0e47262a67e0 https://git.kernel.org/stable/c/5af7d2cbd20f893def03c8310a460ade66a5d822