A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.6.77/6.12.13/6.13.2/6.14-rc1. Affected is the function
qdisc_tree_reduce_backlog of the component netem. The manipulation leads to use after free.
This vulnerability is traded as CVE-2025-21703. The attack can only be initiated within the local network. There is no exploit available.
It is recommended to upgrade the affected component.
