CVE-2025-39693 drm/amd/display: Avoid a NULL pointer dereference
A NULL pointer dereference in the AMD display driver can cause a system crash, requiring a kernel patch to prevent denial of service.
- 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-2025-39693?
CVE-2025-39693 is a medium-severity vulnerability in Debian Debian Linux, 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/amd/display: Avoid a NULL pointer dereference
[WHY] Although unlikely drm_atomic_get_new_connector_state() or drm_atomic_get_old_connector_state() can return NULL.
[HOW] Check returns before dereference.
(cherry picked from commit 1e5e8d672fec9f2ab352be121be971877bff2af9)
Weakness: CWE-476
Which versions are affected by CVE-2025-39693?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-39693?
Apply the vendor's patch.
Is CVE-2025-39693 being exploited?
There is no known exploitation of CVE-2025-39693 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-66980, AZL-73656, BELL-CVE-2025-39693, DEBIAN-CVE-2025-39693, GHSA-6q68-7vw9-jpj7, ROOT-OS-DEBIAN-11-CVE-2025-39693 and 5 more.