Commit 68c4fce7 authored Sep 23, 2012 by Dan Carpenter Committed by Dave Airlie Sep 26, 2012

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>

parent 4f20d9eb

drivers/gpu/drm/vmwgfx/vmwgfx_fence.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;