batman-adv: stop tp_meter sessions during mesh teardown
Summary
| CVE | CVE-2026-46208 |
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-28 10:16:36 UTC |
| Updated | 2026-05-28 13:44:01 UTC |
| 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. |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|
| CNA |
Linux |
Linux |
affected 33a3bb4a3345bb511f9c69c913da95d4693e2a4e 79bc0eaeef2c5797317bf2da8e3159a74d62ec47 git |
Not specified |
| CNA |
Linux |
Linux |
affected 33a3bb4a3345bb511f9c69c913da95d4693e2a4e 26dfeee8db81354bfdade155f27f9e16510ad196 git |
Not specified |
| CNA |
Linux |
Linux |
affected 33a3bb4a3345bb511f9c69c913da95d4693e2a4e 03660dab86f93319178a24667f6998526dc4355d git |
Not specified |
| CNA |
Linux |
Linux |
affected 33a3bb4a3345bb511f9c69c913da95d4693e2a4e 8634c1dbd73adb74d40533ebb7e914efb82e71fb git |
Not specified |
| CNA |
Linux |
Linux |
affected 33a3bb4a3345bb511f9c69c913da95d4693e2a4e 3d3cf6a7314aca4df0a6dde28ce784a2a30d0166 git |
Not specified |
| CNA |
Linux |
Linux |
affected 4.8 |
Not specified |
| CNA |
Linux |
Linux |
unaffected 4.8 semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.6.140 6.6.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.12.90 6.12.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.18.32 6.18.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.0.9 7.0.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.1-rc4 * original_commit_for_fix |
Not specified |
References
| Reference | Source | Link | Tags |
|---|
| git.kernel.org/stable/c/3d3cf6a7314aca4df0a6dde28ce784a2a30d0166 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/79bc0eaeef2c5797317bf2da8e3159a74d62ec47 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/26dfeee8db81354bfdade155f27f9e16510ad196 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/03660dab86f93319178a24667f6998526dc4355d |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/8634c1dbd73adb74d40533ebb7e914efb82e71fb |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.