CVE-2023-52863 hwmon: (axi-fan-control) Fix possible NULL pointer dereference
A race condition in the AXI fan control driver can cause a kernel NULL pointer dereference, leading to 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-2023-52863?
CVE-2023-52863 is a medium-severity vulnerability in Linux kernel, published on 21 May 2024. 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:
hwmon: (axi-fan-control) Fix possible NULL pointer dereference
axi_fan_control_irq_handler(), dependent on the private axi_fan_control_data structure, might be called before the hwmon device is registered. That will cause an "Unable to handle kernel NULL pointer dereference" error.
Weakness: CWE-476
Which versions are affected by CVE-2023-52863?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52863?
Apply the vendor's patch.
Is CVE-2023-52863 being exploited?
There is no known exploitation of CVE-2023-52863 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-52863, DEBIAN-CVE-2023-52863, GHSA-5f2f-22g2-g2gq, UBUNTU-CVE-2023-52863.