CVE-2026-74329watchdog: unregister PM notifier on watchdog unregister
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: watchdog: unregister PM notifier on watchdog unregister watchdog_register_device() registers wdd->pm_nb when WDOG_NO_PING_ON_SUSPEND is set, but watchdog_unregister_device() does not remove it. This leaves an embedded notifier block on the PM notifier chain after the watchdog device has been unregistered. A later suspend/resume notification can then call watchdog_pm_notifier() with a stale watchdog_device pointer, or at minimum after wdd->wd_data has been cleared by watchdog_dev_unregister(). Unregister the PM notifier before tearing down the watchdog device.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 before cd2d1b1f99308f7680d75a377daaff363f1cc736; 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 builds before 5d9b58ec6f5de5e159a570d419b1b08b3b9f854b; from 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 before 89184909634e50d086d86d8a0c03fc86fe8d889f; from 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 before e690afea5c876a4abfa2978c6a664460ed7d1217; from 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 before 298821692d447c2f7b1bc9ef41cd88a31bf56436; from 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 before c70b5bb6f04f77ef90e047d7edc2f476e206909f; from 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 before a298c7302ee9584a7a1ac1e8acbede8d98ab51a4 | CNA record |
References
- https://git.kernel.org/stable/c/cd2d1b1f99308f7680d75a377daaff363f1cc736
- https://git.kernel.org/stable/c/5d9b58ec6f5de5e159a570d419b1b08b3b9f854b
- https://git.kernel.org/stable/c/89184909634e50d086d86d8a0c03fc86fe8d889f
- https://git.kernel.org/stable/c/e690afea5c876a4abfa2978c6a664460ed7d1217
- https://git.kernel.org/stable/c/298821692d447c2f7b1bc9ef41cd88a31bf56436
- https://git.kernel.org/stable/c/c70b5bb6f04f77ef90e047d7edc2f476e206909f
- https://git.kernel.org/stable/c/a298c7302ee9584a7a1ac1e8acbede8d98ab51a4
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.