2006-08-03  Eric Blake	<ebb9@byu.net>

	[BZ #2998]
	* misc/error.c (error_tail) [_LIBC]: Avoid invalid free.

--- libc/misc/error.c	28 Jul 2005 21:42:37 -0000	1.38
+++ libc/misc/error.c	12 Aug 2006 17:57:29 -0000	1.39
@@ -224,7 +224,10 @@ error_tail (int status, int errnum, cons
 	{
 	  /* The string cannot be converted.  */
 	  if (use_malloc)
-	    free (wmessage);
+	    {
+	      free (wmessage);
+	      use_malloc = false;
+	    }
 	  wmessage = (wchar_t *) L"???";
 	}