CVE-2026-46208

HIGH

batman-adv: stop tp_meter sessions during mesh teardown

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 3.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (28)
linux/Kernel 4.8.0 - 5.10.259linux
linux/Kernel 5.11.0 - 5.15.210linux
linux/Kernel 5.16.0 - 6.1.176linux
linux/Kernel 6.13.0 - 6.18.32linux
linux/Kernel 6.19.0 - 7.0.9linux
linux/Kernel 6.2.0 - 6.6.140linux
linux/Kernel 6.7.0 - 6.12.90linux
Linux/Linux < 4.8
Linux/Linux 33a3bb4a3345bb511f9c69c913da95d4693e2a4e - 03660dab86f93319178a24667f6998526dc4355d
Linux/Linux 33a3bb4a3345bb511f9c69c913da95d4693e2a4e - 268078acae72daa12b17b2b299701cb9924e469a
... and 18 more
Published May 28, 2026
Tracked Since May 28, 2026