CVE-2025-39707 drm/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities
A local attacker with debugfs access can cause a kernel crash by triggering a null pointer dereference in the amdgpu driver.
- 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-2025-39707?
CVE-2025-39707 is a medium-severity vulnerability in Linux kernel, published on 5 Sep 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/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities
HUBBUB structure is not initialized on DCE hardware, so check if it is NULL to avoid null dereference while accessing amdgpu_dm_capabilities file in debugfs.
Weakness: CWE-476
Which versions are affected by CVE-2025-39707?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-39707?
Apply the vendor's patch.
Is CVE-2025-39707 being exploited?
There is no known exploitation of CVE-2025-39707 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-66992, AZL-70795, BELL-CVE-2025-39707, DEBIAN-CVE-2025-39707, GHSA-6v6r-v587-jc5m, ROOT-OS-DEBIAN-11-CVE-2025-39707 and 5 more.