CVE-2026-46208: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: batman-adv: stop tp_meter sessions during mesh teardown TP meter sessions remain linked on bat_priv->tp_list after the netlink request has already finished. When the mesh interface is removed, batadv_mesh_free() currently tears down the mesh without first draining these sessions. A running sender thread or a late incoming tp_meter packet can then keep processing against a mesh instance which is already shutting down. Synchronize tp_meter with the mesh lifetime by stopping all active sessions from batadv_mesh_free() and waiting for sender threads to exit before teardown continues.

Affected products

• Linux Linux Kernel: from 4.8, before 6.6.140 (fixed in 6.6.140); from 6.7, before 6.12.90 (fixed in 6.12.90); from 6.13, before 6.18.32 (fixed in 6.18.32); from 6.19, before 7.0.9 (fixed in 7.0.9); version 7.1 only

Published 2026-05-28. Last modified 2026-06-19.