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DEBIAN-CVE-2026-68357
No affected components available
In the Linux kernel, the following vulnerability has been resolved: watchdog: pretimeout: Fix UAF in watchdog_unregister_governor() When a watchdog governor is unregistered, it updates existing watchdog devices that were using this governor by falling back to default_gov. If the governor being unregistered is currently set as default_gov, the default_gov is never cleared. This leads to 2 use-after-free issues: 1. New watchdog devices registered after this point will inherit the dangling default_gov. 2. Existing watchdog devices using the unregistered governor will have their wdd->gov reassigned to the dangling default_gov. Fix the UAF by clearing default_gov if it matches the governor being unregistered.
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Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
- CVE-2026-68357Upstream
- EUVD-2026-55458Upstream
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