1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b9ba06176eb1..357bd04a173b 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -2706,8 +2706,11 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
         if (!drm_core_check_feature(dev, DRIVER_MODESET))
                 return -EINVAL;
 
-        /* For some reason crtc x/y offsets are signed internally. */
-        if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
+        /*
+         * Universal plane src offsets are only 16.16, prevent havoc for
+         * drivers using universal plane code internally.
+         */
+        if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000)
                 return -ERANGE;
 
         drm_modeset_lock_all(dev);