Riskcovery

CVE-2024-26662

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

State
Published
Severity
5.5 Medium
Published
Apr 2, 2024
Updated
Oct 30, 2026
Reserved
Feb 19, 2024

Read the record on cve.org

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)

Scores

CVSSScoreVectorSource
3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 to before 94a506cbfd1bd4817502bed097e24cbab23cfce3Affected
  • 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 to before 2e150ccea13129eb048679114808eb9770443e4dAffected
  • 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 to before 0c863cab0e9173f8b6c7bc328bee3b8625f131b5Affected
  • 474ac4a875ca6fea3fc5183d3ad22ef7523dca53 to before e96fddb32931d007db12b1fce9b5e8e4c080401bAffected
LinuxLinux
  • 5.9Affected
  • before 5.9Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.17 through 6.6.*Not affected
  • 6.7.5 through 6.7.*Not affected
  • 6.8 and laterNot affected

References

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