CVE-2025-22078 staging: vchiq_arm: Fix possible NPR of keep-alive thread
A null pointer dereference in the Linux kernel vchiq_arm driver can cause a system crash during driver removal.
- 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-2025-22078?
CVE-2025-22078 is a medium-severity vulnerability in Linux kernel, published on 16 Apr 2025. 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:
staging: vchiq_arm: Fix possible NPR of keep-alive thread
In case vchiq_platform_conn_state_changed() is never called or fails before driver removal, ka_thread won't be a valid pointer to a task_struct. So do the necessary checks before calling kthread_stop to avoid a crash.
Which versions are affected by CVE-2025-22078?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-22078?
Apply the vendor's patch.
Is CVE-2025-22078 being exploited?
There is no known exploitation of CVE-2025-22078 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-22078, DEBIAN-CVE-2025-22078, GHSA-45jg-8873-4f8h, UBUNTU-CVE-2025-22078.