CVE-2026-90365 wifi: mt76: cancel reset and rc work on device unregister
A race condition in the mt76 Wi-Fi driver during device unregister can cause a kernel crash, requiring a patch to cancel pending work items.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-90365?
CVE-2026-90365 is a vulnerability in Linux, published on 17 Sep 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:
wifi: mt76: cancel reset and rc work on device unregister
Both drivers cancelled dump_work on unregister but left reset_work and rc_work to be flushed only by destroy_workqueue() in mt76_free_device(), which runs after the hw is unregistered and the hardware stopped. A reset_work that fires in that window calls ieee80211_restart_hw() and re-arms mac_work on an unregistered hw, and rc_work touches station state being torn down. Cancel both up front, alongside dump_work.
Which versions are affected by CVE-2026-90365?
How do I fix CVE-2026-90365?
Apply the vendor's patch.
Is CVE-2026-90365 being exploited?
There is no known exploitation of CVE-2026-90365 in the wild and no public exploit code.
Sources
Also known as AZL-102425, BELL-CVE-2026-90365, DEBIAN-CVE-2026-90365, GHSA-mg5m-xfw2-63jw, UBUNTU-CVE-2026-90365.