CVE-2021-47324

A vulnerability was found in the Linux kernel's watchdog module in the wdt_startup() function. This issue occurs when the module's remove process calls del_timer(), which does not wait for the timer handler to finish. As a result, the handler might still be running after the driver is removed, leading to a potential use-after-free.

This vulnerability is rated as a moderate severity because it affects system stability by risking crashes or unexpected behavior, it does not compromise data security or user access. The use-after-free condition could disrupt normal operations, impacting availability without directly exposing sensitive information

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.