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-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_surface.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index adc023fe67f3..05fa092c942b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -713,8 +713,11 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
128;
num_sizes = 0;
- for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
+ for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
+ if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
+ return -EINVAL;
num_sizes += req->mip_levels[i];
+ }
if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
num_sizes == 0)