drm/amdgpu: validate size and offset of user fence BO
authorChristian König <christian.koenig@amd.com>
Fri, 9 Sep 2016 09:21:43 +0000 (11:21 +0200)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 14 Sep 2016 19:10:43 +0000 (15:10 -0400)
commitaa29040b437be9e4255062aa38bcbe7cb50da8c1
treee3e9c09aef76de44e3bd55c59275dbcb47b7bdd0
parent7c732ea64993b9f37daff9bd95b552576304b6d9
drm/amdgpu: validate size and offset of user fence BO

We need to validate the offset to make sure that we don't write after the BO.

Additional to that a page should be enough and can make address space
handling much easier.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c