From: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Jammy Zhou <Jammy.Zhou@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 1cc01fb..b25e533 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))) {
--
1.8.3.1
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