In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add NULL check for 'afb' before dereferencing in amdgpudmplanehandlecursorupdate This commit adds a null check for the 'afb' variable in the amdgpudmplanehandlecursorupdate function. Previously, 'afb' was assumed to be null, but was used later in the code without a null check. This could potentially lead to a null pointer dereference. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/amdgpudm/amdgpudmplane.c:1298 amdgpudmplanehandlecursorupdate() error: we previously assumed 'afb' could be null (see line 1252)