CVE-2025-21692 | Linux Kernel up to 6.13.0 net/sched/sch_ets.c ets_class_from_arg array index

A vulnerability has been found in Linux Kernel up to 6.13.0 and classified as problematic. Affected by this vulnerability is the function ets_class_from_arg of the file net/sched/sch_ets.c. The manipulation leads to improper validation of array index.

This vulnerability is known as CVE-2025-21692. The attack needs to be done within the local network. There is no exploit available.

It is recommended to upgrade the affected component.