diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo_vm.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_vm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index e86a29a1e51f..6dacff49c1cc 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -432,6 +432,9 @@ int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, struct ttm_buffer_object *bo; int ret; + if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET_START)) + return -EINVAL; + bo = ttm_bo_vm_lookup(bdev, vma->vm_pgoff, vma_pages(vma)); if (unlikely(!bo)) return -EINVAL; |