CVE-2024-26662

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)