diff -up metacity-2.18.5/src/session.c.dont-deref-null-pointer metacity-2.18.5/src/session.c
--- metacity-2.18.5/src/session.c.dont-deref-null-pointer	2007-09-11 15:41:23.000000000 -0400
+++ metacity-2.18.5/src/session.c	2007-09-11 15:41:34.000000000 -0400
@@ -1824,8 +1824,6 @@ warn_about_lame_clients_and_finish_inter
 
       display_iter = display_iter->next;
     }
-  /* don't need to free displays */
-  displays = NULL;
 
   if (lame == NULL)
     {