commit e3512fb67093fabdf27af303066627b921ee9bd8 upstream. The page table of AMDGPU requires an alignment to CPU page so we should check ioctl parameters for it. Return -EINVAL if some parameter is unaligned to CPU page, instead of corrupt the page table sliently. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Xi Ruoyao <xry111@mengyan1223.wang> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>