CVE-2026-74687

A flaw was found in the Linux kernel, specifically within the at91sam9_wdt watchdog timer driver. During the driver's teardown process, the at91_ping() function could rearm the watchdog timer. However, the timer_delete() function does not prevent this, resulting in a use-after-free vulnerability where the timer attempts to access memory that has already been released. This flaw could be triggered by a local attacker or specific system conditions, potentially leading to system instability or a denial of service.

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.