vmwgfx: corruption in vmw_event_fence_action_create()

We don't allocate enough data for this struct.  As soon as we start
modifying event->event on the next lines, then we're going beyond the
end of the memory we allocated.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index f2fb8f15e2f..7e0743358df 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1018,7 +1018,7 @@ int vmw_event_fence_action_create(struct drm_file *file_priv,
         }
 
 
-        event = kzalloc(sizeof(event->event), GFP_KERNEL);
+        event = kzalloc(sizeof(*event), GFP_KERNEL);
         if (unlikely(event == NULL)) {
                 DRM_ERROR("Failed to allocate an event.\n");
                 ret = -ENOMEM;