CVE-2026-80991

A flaw was found in the Linux kernel's net: ravb module. A race condition exists during the Precision Time Protocol (PTP) clock teardown. This allows the ravb_ptp_interrupt() function to attempt to use a PTP clock after it has been freed by ptp_clock_unregister(), leading to a use-after-free vulnerability. This could result in system instability, denial of service, or potentially information disclosure.

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.