CVE-2025-38021

drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp

MEDIUM
5.5
CVSS Score
Published: June 18, 2025 at 09:28 AM UTC
Updated: June 17, 2026 at 09:15 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp Similar to commit 6a057072ddd1 ("drm/amd/display: Fix null check for pipe_ctx->plane_state in dcn20_program_pipe") that addresses a null pointer dereference on dcn20_update_dchubp_dpp. This is the same function hooked for update_dchubp_dpp in dcn401, with the same issue. Fix possible null pointer deference on dcn401_program_pipe too. (cherry picked from commit d8d47f739752227957d8efc0cb894761bfe1d879)

Affected

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

6.14 ≤ v < 6.14.86.14 ≤ v < 6.156.146.15 rc16.15 rc26.15 rc36.15 rc46.15 rc56.15 rc663ab80d9ac0adae2066b140ec30481ba4648140d
Vendor states this is fixed in 4679061fb25344d6010ce7b9bebac21c91a0b75a (fixed)
Vendor states this is fixed in a3b7e65b6be59e686e163fa1ceb0922f996897c2 (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.14.8 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4679061fb25344d6010ce7b9bebac21c91a0b75a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a3b7e65b6be59e686e163fa1ceb0922f996897c2

CVSS

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

Quick Info

StatusANALYZED
CWE
CWE-476

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