CVE-2024-26662

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

Medium · published April 2, 2024

CVSS v3.1
5.5
EPSS
0%
Percentile
12.4
In the wild
Unconfirmed
What it is

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)

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00225 · 12.4th percentile
Published
2024-04-02T06:22Z
EPSS history
Timeline
  • 02 APR 06:22Z
    drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'
    cvelistv5