CVE-2026-68357

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free (UAF) issue exists in the watchdog unregister governor() function. When a watchdog governor is unregistered, the system updates existing watchdog devices to fall back to the default gov. If the governor being unregistered is the default gov, it is not cleared, resulting in two scenarios: new watchdog devices inherit a dangling default gov, and existing devices using the unregistered governor have their wdd->gov reassigned to that same dangling default gov. Use-after-free refers to a situation where a program continues to use a pointer after the memory it points to has been freed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.