CVE-2025-39906 drm/amd/display: remove oem i2c adapter on finish

High 7.8 Published Updated

A null pointer dereference in the Linux kernel AMD display driver can cause a denial of service when unbinding the GPU.

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-2025-39906?

CVE-2025-39906 is a high-severity vulnerability in Linux kernel, published on 1 Oct 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:

drm/amd/display: remove oem i2c adapter on finish

Fixes a bug where unbinding of the GPU would leave the oem i2c adapter registered resulting in a null pointer dereference when applications try to access the invalid device.

(cherry picked from commit 89923fb7ead4fdd37b78dd49962d9bb5892403e6)

Weakness: CWE-476

Which versions are affected by CVE-2025-39906?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2025-39906?

Apply the vendor's patch.

Is CVE-2025-39906 being exploited?

There is no known exploitation of CVE-2025-39906 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2025-39906, DEBIAN-CVE-2025-39906, GHSA-jcmj-4vm7-4478, UBUNTU-CVE-2025-39906.

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