CVE-2025-21989: drm/amd/display: fix missing .is_two_pixels_per_container
First published: Wed Apr 02 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix missing .is_two_pixels_per_container Starting from 6.11, AMDGPU driver, while being loaded with amdgpu.dc=1, due to lack of .is_two_pixels_per_container function in dce60_tg_funcs, causes a NULL pointer dereference on PCs with old GPUs, such as R9 280X. So this fix adds missing .is_two_pixels_per_container to dce60_tg_funcs. (cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.11 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21989?
The severity of CVE-2025-21989 is moderate, as it affects the functionality of the AMDGPU driver in specific configurations.
How do I fix CVE-2025-21989?
To fix CVE-2025-21989, update your Linux kernel to version 6.11 or later where the vulnerability is addressed.
What is affected by CVE-2025-21989?
CVE-2025-21989 affects the Linux kernel starting from version 6.11 when the AMDGPU driver is loaded with amdgpu.dc=1.
What type of vulnerability is CVE-2025-21989?
CVE-2025-21989 is a vulnerability related to the AMDGPU driver and the absence of the .is_two_pixels_per_container function.
Is CVE-2025-21989 specific to certain AMD hardware?
CVE-2025-21989 primarily impacts systems using the AMDGPU driver in conjunction with specific AMD hardware configurations.
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/references
- agent/title
- agent/type
- agent/description
- agent/first-publish-date
- agent/guess-ai
- agent/software-canonical-lookup
- agent/softwarecombine
- collector/nvd-api
- source/NVD
- agent/source
- agent/last-modified-date
- agent/author
- agent/tags
- agent/event
- vendor/linux
- canonical/linux kernel