In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null check for pipectx->planestate in resourcebuildscalingparams Null pointer dereference issue could occur when pipectx->planestate is null. The fix adds a check to ensure 'pipectx->plane_state' is not null before accessing. This prevents a null pointer dereference. Found by code review. (cherry picked from commit 63e6a77ccf239337baa9b1e7787cde9fa0462092)