Memory leaks in *create_resource_pool() functions under
drivers/gpu/drm/amd/display/dc in the Linux kernel through 5.3.11 allow
attackers to cause a denial of service (memory consumption). This affects
the dce120_create_resource_pool() function in
drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c, the
dce110_create_resource_pool() function in
drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c, the
dce100_create_resource_pool() function in
drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c, the
dcn10_create_resource_pool() function in
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c, and the
dce112_create_resource_pool() function in
drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c, aka
CID-104c307147ad.

It was discovered that the AMD GPU device drivers in the Linux kernel did
not properly deallocate memory in certain error conditions. A local
attacker could use this to possibly cause a denial of service (kernel
memory exhaustion).