In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid DPMS-on for phantom stream [Why & How] Calling dc_update_planes_and_stream separately for stream and its phantom stream causes a NULL pointer dereference, since the phantom is destroyed on the first call. Skip the call for phantom streams. Data source: kernel.org (416baaa9-dc9f-4396-8d5f-8c081fb06d67)