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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> | 2015-05-26 15:51:53 -0400 |
| commit | 0e92bacd7dc9d17ef8c511ac1332df317b4b3bfb (patch) | |
| tree | e2f094c8d143b697c65f3e41e0ff429ede57630d | |
| parent | ae79b3697b5cc242b4b847e501a633c8007ee80f (diff) | |
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>
| -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))) { |