🔐 CVE Alert

CVE-2026-74329

UNKNOWN 0.0

watchdog: unregister PM notifier on watchdog unregister

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

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.

Vendor linux
Product linux
Ecosystems
Industries
Technology
Published Aug 15, 2026
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Affected Versions

Linux / Linux
60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 < cd2d1b1f99308f7680d75a377daaff363f1cc736 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 < 5d9b58ec6f5de5e159a570d419b1b08b3b9f854b 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 < 89184909634e50d086d86d8a0c03fc86fe8d889f 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 < e690afea5c876a4abfa2978c6a664460ed7d1217 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 < 298821692d447c2f7b1bc9ef41cd88a31bf56436 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 < c70b5bb6f04f77ef90e047d7edc2f476e206909f 60bcd91aafd22ef62cef9ae2037fa2e1d4da2fb3 < a298c7302ee9584a7a1ac1e8acbede8d98ab51a4
Linux / Linux
5.15

References

NVD ↗ CVE.org ↗ EPSS Data ↗
git.kernel.org: https://git.kernel.org/stable/c/cd2d1b1f99308f7680d75a377daaff363f1cc736 git.kernel.org: https://git.kernel.org/stable/c/5d9b58ec6f5de5e159a570d419b1b08b3b9f854b git.kernel.org: https://git.kernel.org/stable/c/89184909634e50d086d86d8a0c03fc86fe8d889f git.kernel.org: https://git.kernel.org/stable/c/e690afea5c876a4abfa2978c6a664460ed7d1217 git.kernel.org: https://git.kernel.org/stable/c/298821692d447c2f7b1bc9ef41cd88a31bf56436 git.kernel.org: https://git.kernel.org/stable/c/c70b5bb6f04f77ef90e047d7edc2f476e206909f git.kernel.org: https://git.kernel.org/stable/c/a298c7302ee9584a7a1ac1e8acbede8d98ab51a4