Four memory leaks in the acphwinit() function in drivers/gpu/drm/amd/amdgpu/amdgpuacp.c in the Linux kernel before 5.3.8 allow attackers to cause a denial of service (memory consumption) by triggering mfdaddhotplugdevices() or pmgenpdadd_device() failures, aka CID-57be09c6e874. NOTE: third parties dispute the relevance of this because the attacker must already have privileges for module loading