CVE-2026-46206 batman-adv: reject new tp_meter sessions during teardown
Attackers can trigger a race condition in batman-adv during teardown, potentially causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46206?
CVE-2026-46206 is a high-severity vulnerability in Linux kernel, published on 28 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: reject new tp_meter sessions during teardown
Prevent tp_meter from starting new sender or receiver sessions after mesh_state has left BATADV_MESH_ACTIVE.
Which versions are affected by CVE-2026-46206?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46206?
Apply the vendor's patch.
Is CVE-2026-46206 being exploited?
There is no known exploitation of CVE-2026-46206 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88929, BELL-CVE-2026-46206, DEBIAN-CVE-2026-46206, GHSA-qgq4-qmm7-r3p4, ROOT-OS-DEBIAN-11-CVE-2026-46206, ROOT-OS-DEBIAN-12-CVE-2026-46206 and 3 more.