CVE-2026-46208
batman-adv: stop tp_meter sessions during mesh teardown
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.8
References 8
git.kernel.org
- stable/c/5e7d0ac936354c36810e74ac3056b334ed1f4058
- stable/c/268078acae72daa12b17b2b299701cb9924e469a
- stable/c/58943b7ea356294749dae3e75b96c0ee292c00be
- stable/c/79bc0eaeef2c5797317bf2da8e3159a74d62ec47
- stable/c/26dfeee8db81354bfdade155f27f9e16510ad196
- stable/c/03660dab86f93319178a24667f6998526dc4355d
- stable/c/8634c1dbd73adb74d40533ebb7e914efb82e71fb
- stable/c/3d3cf6a7314aca4df0a6dde28ce784a2a30d0166