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 (Nessus ID 234309 / WID-SEC-2025-0683)
A vulnerability marked as critical has been reported in Linux Kernel up to 6.1.131/6.6.83/6.12.19/6.13.7. The impacted element is the function qdisc_tree_reduce_backlog of the component net_sched. The manipulation leads to denial of service.
This vulnerability is referenced as CVE-2025-21971. The attack needs to be initiated within the local network. No exploit is available.
It is suggested to upgrade the affected component.