Description:
------------
ext/phar's test phar_offset_get_error.phpt fails with leaked memory in zend_execute_API.c:1023, which is where retval is allocated.  It turns out that if offsetGet() throws an exception, zend_std_read_dimension() does not free the return zval, and it leaks.  This only affects PHP 5.2.  The patch to fix is at http://pear.php.net/~greg/fix_leak.patch.txt and is pasted below

Reproduce code:
---------------
Index: Zend/zend_object_handlers.c
===================================================================
RCS file: /repository/ZendEngine2/zend_object_handlers.c,v
retrieving revision 1.135.2.6.2.28
diff -u -r1.135.2.6.2.28 zend_object_handlers.c
--- Zend/zend_object_handlers.c 21 Feb 2008 13:55:22 -0000      1.135.2.6.2.28
+++ Zend/zend_object_handlers.c 21 Jun 2008 17:33:18 -0000
@@ -469,6 +469,10 @@
                        return 0;
                }

+               if (EG(exception)) {
+                       zval_ptr_dtor(&retval);
+                       return 0;
+               }
                /* Undo PZVAL_LOCK() */
                retval->refcount--;