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

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

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix 'panelcntl' could be null in 'dcn21setbacklightlevel' 'panelcntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below:...

UBUNTU-CVE-2024-26662

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix 'panelcntl' could be null in 'dcn21setbacklightlevel' 'panelcntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below:...