CVE-2025-21971 | Linux Kernel up to 6.1.131/6.6.83/6.12.19/6.13.7 net_sched qdisc_tree_reduce_backlog denial of service
A vulnerability classified as critical has been found in Linux Kernel up to 6.1.131/6.6.83/6.12.19/6.13.7. Affected is the function qdisc_tree_reduce_backlog of the component net_sched. The manipulation leads to denial of service.
This vulnerability is traded as CVE-2025-21971. Access to the local network is required for this attack. There is no exploit available.
It is recommended to upgrade the affected component.