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| author |   Christian König <christian.koenig@amd.com> | 2015-05-18 14:37:27 +0200 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2015-06-03 21:03:43 -0400 |
| commit | 0be52de91c5e275dff61f0ed2314d84c9d68b385 (patch) | |
| tree | fe0119faa0f88714457adaaff98a83ce44bee831 /drivers | |
| parent | drm/amdgpu: enforce AMDGPU_GEM_CREATE_NO_CPU_ACCESS (diff) | |
| download | linux-dev-0be52de91c5e275dff61f0ed2314d84c9d68b385.tar.xz linux-dev-0be52de91c5e275dff61f0ed2314d84c9d68b385.zip | |
drm/amdgpu: validate amdgpu_vm_bo_map parameters
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 1cc01fb409dc..b25e533fd6e8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -936,6 +936,13 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, uint64_t eaddr; int r; + /* validate the parameters */ + if (saddr & AMDGPU_GPU_PAGE_MASK || offset & AMDGPU_GPU_PAGE_MASK || + size == 0 || size & AMDGPU_GPU_PAGE_MASK) { + amdgpu_bo_unreserve(bo_va->bo); + return -EINVAL; + } + /* make sure object fit at this offset */ eaddr = saddr + size; if ((saddr >= eaddr) || (offset + size > amdgpu_bo_size(bo_va->bo))) { |