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CVE-2025-21989

drm/amd/display: fix missing .is_two_pixels_per_container

MEDIUM
5.5
CVSS Score
Published: April 2, 2025 at 12:53 PM UTC
Updated: June 17, 2026 at 08:44 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.11 ≤ v < 6.12.206.11 ≤ v < 6.13.86.11 ≤ v < 6.146.13 ≤ v < 6.13.86.14 rc16.14 rc26.14 rc36.14 rc46.14 rc56.14 rc6e6a901a00822659181c93c86d8bbc2a17779fddc
Vendor states this is fixed in 36d04c9313d8d83ead92242f037099ac73e02120 (fixed)
Vendor states this is fixed in e204aab79e01bc8ff750645666993ed8b719de57 (fixed)
Vendor states this is fixed in fefa811e616b5d0b555ed65743e528a0a8a0b377 (fixed)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.12.20 (unaffected)
Vendor states this is fixed in 6.13.8 (unaffected)
Vendor states this is fixed in 6.14 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/36d04c9313d8d83ead92242f037099ac73e02120
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e204aab79e01bc8ff750645666993ed8b719de57
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fefa811e616b5d0b555ed65743e528a0a8a0b377

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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