lisa/android_kernel_xiaomi_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu: check alignment on CPU page for bo map

Browse Source 
commit e3512fb67093fabdf27af303066627b921ee9bd8 upstream.

The page table of AMDGPU requires an alignment to CPU page so we should
check ioctl parameters for it.  Return -EINVAL if some parameter is
unaligned to CPU page, instead of corrupt the page table sliently.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Xi Ruoyao <xry111@mengyan1223.wang>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xℹ Ruoyao 2021-03-30 23:33:34 +08:00 committed by Greg Kroah-Hartman
parent f9b3b70fd4
commit 4dc52ce56d
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@ -2123,8 +2123,8 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
uint64_t eaddr; uint64_t eaddr;
/* validate the parameters */ /* validate the parameters */
if (saddr & AMDGPU_GPU_PAGE_MASK || offset & AMDGPU_GPU_PAGE_MASK || if (saddr & ~PAGE_MASK || offset & ~PAGE_MASK ||
size == 0 || size & AMDGPU_GPU_PAGE_MASK) size == 0 || size & ~PAGE_MASK)
return -EINVAL; return -EINVAL;
/* make sure object fit at this offset */ /* make sure object fit at this offset */
@ -2188,8 +2188,8 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev,
int r; int r;
/* validate the parameters */ /* validate the parameters */
if (saddr & AMDGPU_GPU_PAGE_MASK || offset & AMDGPU_GPU_PAGE_MASK || if (saddr & ~PAGE_MASK || offset & ~PAGE_MASK ||
size == 0 || size & AMDGPU_GPU_PAGE_MASK) size == 0 || size & ~PAGE_MASK)
return -EINVAL; return -EINVAL;
/* make sure object fit at this offset */ /* make sure object fit at this offset */