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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>
This commit is contained in:
Christian König 2015-05-18 14:37:27 +02:00 committed by Alex Deucher
parent 271c812566
commit 0be52de91c
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -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))) {