CVE-2026-72024 mac802154: remove interfaces with RCU list deletion
A race condition in the Linux kernel mac802154 subsystem allows a use-after-free during interface teardown, potentially causing a system crash.
- 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-2026-72024?
CVE-2026-72024 is a high-severity vulnerability in Linux, published on 15 Aug 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:
mac802154: remove interfaces with RCU list deletion
Queue wake, stop, and disable paths walk local->interfaces under RCU. The bulk hardware teardown path removes entries with list_del(), so an asynchronous transmit completion can follow a poisoned list node in ieee802154_wake_queue().
Use list_del_rcu() as in the single-interface removal path. The following unregister_netdevice() waits for in-flight RCU readers before freeing the netdevice, so no separate grace-period wait is needed.
Weakness: CWE-362
Which versions are affected by CVE-2026-72024?
How do I fix CVE-2026-72024?
Apply the vendor's patch.
Is CVE-2026-72024 being exploited?
There is no known exploitation of CVE-2026-72024 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72024, DEBIAN-CVE-2026-72024, GHSA-25w8-qg97-7fjr, UBUNTU-CVE-2026-72024.