CVE-2025-21657 | Linux Kernel up to 6.12.9 kernel/sched/sched.h rq_lock Privilege Escalation

A vulnerability was found in Linux Kernel up to 6.12.9. It has been classified as problematic. Affected is the function rq_lock in the library kernel/sched/sched.h. The manipulation leads to Privilege Escalation.

This vulnerability is traded as CVE-2025-21657. Access to the local network is required for this attack. There is no exploit available.

It is recommended to upgrade the affected component.