--- exevents.c
+++ exevents.c
@@ -1294,13 +1294,13 @@ RetrieveTouchDeliveryData(DeviceIntPtr dev, TouchPointInfoPtr ti,
     *mask = NULL;
     *grab = NULL;
 
-    if (listener->type == LISTENER_GRAB ||
+    if (listener && listener->type == LISTENER_GRAB ||
         listener->type == LISTENER_POINTER_GRAB) {
         *grab = listener->grab;
 
         BUG_RETURN_VAL(!*grab, FALSE);
     }
-    else if (ti->emulate_pointer && dev->deviceGrab.grab &&
+    else if (ti && ti->emulate_pointer && dev && dev->deviceGrab.grab &&
              !dev->deviceGrab.fromPassiveGrab) {
         /* There may be an active pointer grab on the device */
         *grab = dev->deviceGrab.grab;