High 7.8Published May 28, 2026

CVE-2026-46208batman-adv: stop tp_meter sessions during mesh teardown

Updated under an hour ago (Oct 27, 2026, 7:40 AM ET)

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Exploited in the last 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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	33a3bb4a3345bb511f9c69c913da95d4693e2a4e builds before 5e7d0ac936354c36810e74ac3056b334ed1f4058; from 33a3bb4a3345bb511f9c69c913da95d4693e2a4e before 268078acae72daa12b17b2b299701cb9924e469a; from 33a3bb4a3345bb511f9c69c913da95d4693e2a4e before 58943b7ea356294749dae3e75b96c0ee292c00be; from 33a3bb4a3345bb511f9c69c913da95d4693e2a4e before 79bc0eaeef2c5797317bf2da8e3159a74d62ec47; 33a3bb4a3345bb511f9c69c913da95d4693e2a4e builds before 26dfeee8db81354bfdade155f27f9e16510ad196; from 33a3bb4a3345bb511f9c69c913da95d4693e2a4e before 03660dab86f93319178a24667f6998526dc4355d; from 33a3bb4a3345bb511f9c69c913da95d4693e2a4e before 8634c1dbd73adb74d40533ebb7e914efb82e71fb; 33a3bb4a3345bb511f9c69c913da95d4693e2a4e builds before 3d3cf6a7314aca4df0a6dde28ce784a2a30d0166	CNA record
linux linux_kernel linux:linux_kernel	from 4.8 before 6.6.140; from 6.7 before 6.12.90; from 6.13 before 6.18.32; from 6.19 before 7.0.9; 7.1; 7.1; 7.1	NVD

References

References

https://git.kernel.org/stable/c/5e7d0ac936354c36810e74ac3056b334ed1f4058
https://git.kernel.org/stable/c/268078acae72daa12b17b2b299701cb9924e469a
https://git.kernel.org/stable/c/58943b7ea356294749dae3e75b96c0ee292c00be
https://git.kernel.org/stable/c/79bc0eaeef2c5797317bf2da8e3159a74d62ec47	patch
https://git.kernel.org/stable/c/26dfeee8db81354bfdade155f27f9e16510ad196	patch
https://git.kernel.org/stable/c/03660dab86f93319178a24667f6998526dc4355d	patch
https://git.kernel.org/stable/c/8634c1dbd73adb74d40533ebb7e914efb82e71fb	patch
https://git.kernel.org/stable/c/3d3cf6a7314aca4df0a6dde28ce784a2a30d0166	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.