CVE-2024-26662

drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'

MEDIUM
5.5
CVSS Score
Published: April 2, 2024 at 06:22 AM UTC
Updated: October 30, 2026 at 01:17 PM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
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 'panel_cntl' could be null in 'dcn21_set_backlight_level()' 'panel_cntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)

Affected

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

5.9 ≤ v < 6.6.176.7 ≤ v < 6.7.5474ac4a875ca6fea3fc5183d3ad22ef7523dca536.86.8 rc16.8 rc26.8 rc3
Vendor states this is fixed in 0c863cab0e9173f8b6c7bc328bee3b8625f131b5 (fixed)
Vendor states this is fixed in 2e150ccea13129eb048679114808eb9770443e4d (fixed)
Vendor states this is fixed in e96fddb32931d007db12b1fce9b5e8e4c080401b (fixed)
Vendor states this is fixed in 5.9 (unaffected)
Vendor states this is fixed in 6.1.191 (unaffected)
Vendor states this is fixed in 6.6.17 (unaffected)
Vendor states this is fixed in 6.7.5 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

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

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card