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

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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)

Source published

2 Apr 2024 06:22:11 UTC

Source modified

30 Oct 2026 12:17:44 UTC

Observed here

30 Oct 2026 13:45:33 UTC

Source terms

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