[ CVE-2026-97969 · Published 25 Sep 2026 ]
Vulnerability in Linux
[ Description ]Official description
In the Linux kernel, the following vulnerability has been resolved: watchdog: msc313e: Fix clock leak and spurious timer in settimeout() msc313e_wdt_settimeout() unconditionally calls msc313e_wdt_start() which introduces two severe bugs: 1. If the watchdog is already active, calling start() again will increase the reference count of the clock again. However stop() is only called once, the reference count is unbalance. 2. If the watchdog is stopped, calling settimeout() will start the hardware timer accidentally. Factor out the register-writing logic into a helper function. Only call it in settimeout() if the watchdog is running. Otherwise, simply update `wdev->timeout`.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
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CERT-FRCERTFR-2026-AVI-1289
Multiple vulnerabilities in the Debian LTS Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian LTS Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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CERT-FRCERTFR-2026-AVI-1253
Multiple vulnerabilities in the Debian Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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BSI CERT-BundWID-SEC-2026-3579
Linux Kernel: Multiple vulnerabilities Translated from German
[ References ]References
- git.kernel.org/stable/c/2152a13ee2a9af09a668ebd053a8dbf771dadb80
- git.kernel.org/stable/c/2abf99a57b0b71b2b97745981f4039370ab78044
- git.kernel.org/stable/c/3db30f315935c2fb0d95f46b7a593b5b4d3ec3d0
- git.kernel.org/stable/c/68665016c7b777b44e27b6b0c1e6524c28ebe40a
- git.kernel.org/stable/c/77ef2aa8b46876ca9935f32dd874c517ccf5d880
- git.kernel.org/stable/c/a1dd0817776ea2a870ba2347001af13ddd4cb321
- git.kernel.org/stable/c/faf1eb2895c87a8c0fb920439dddc7e0d97c6a69