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Vulnerabilities CVE-2026-46208

CVE-2026-46208

High
Open
TLP:CLEAR

batman-adv: stop tp_meter sessions during mesh teardown

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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.

Details

CVSS Score
7.8
EPSS Score
0.14%

3.7th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
May 28, 2026
Last Modified
Aug 5, 2026
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