In the Linux kernel, the following vulnerability has been resolved: drm/amd/pp: Fix potential NULL pointer dereference in atomctrlinitializemcregtable The function atomctrlinitializemcregtable() and atomctrlinitializemcregtablev22() does not check the return value of smuatomgetdatatable(). If smuatomgetdatatable() fails to retrieve vram_info, it returns NULL which is later dereferenced.