In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix null check of pipectx->planestate for updatedchubpdpp
Similar to commit 6a057072ddd1 ("drm/amd/display: Fix null check for pipectx->planestate in dcn20programpipe") that addresses a null pointer dereference on dcn20updatedchubpdpp. This is the same function hooked for updatedchubpdpp in dcn401, with the same issue. Fix possible null pointer deference on dcn401program_pipe too.
(cherry picked from commit d8d47f739752227957d8efc0cb894761bfe1d879)