Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineLogic.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineLogic.cpp	(revision 80606)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineLogic.cpp	(revision 80607)
@@ -2658,5 +2658,6 @@
     if (m_pHostLedsState == NULL)
         m_pHostLedsState = DarwinHidDevicesKeepLedsState();
-    DarwinHidDevicesBroadcastLeds(m_pHostLedsState, uisession()->isNumLock(), uisession()->isCapsLock(), uisession()->isScrollLock());
+    if (m_pHostLedsState != NULL)
+        DarwinHidDevicesBroadcastLeds(m_pHostLedsState, uisession()->isNumLock(), uisession()->isCapsLock(), uisession()->isScrollLock());
 #elif defined(VBOX_WS_WIN)
     if (m_pHostLedsState == NULL)