Fixed bug #46087 (DOMXPath - segfault on destruction of a cloned object).

Author: Ilia Alshanetsky

NEWS

@@ -6,6 +6,8 @@ PHP                                                                        NEWS
 - Changed error level E_ERROR into E_WARNING in Soap extension methods 
   parameter validation. (Felipe)
 
+- Fixed bug #46087 (DOMXPath - segfault on destruction of a cloned object).
+  (Ilia)
 - Fixed bug #46086 (Segfault when accessing fileinfo class properties).
   (Scott)
 - Fixed bug #46072 (Compile failure under IRIX 6.5.30 building util.c) (Greg)

ext/dom/php_dom.c

@@ -965,8 +965,10 @@ void dom_xpath_objects_free_storage(void *object TSRMLS_DC)
 		intern->ptr = NULL;
 	}
 
-	zend_hash_destroy(intern->registered_phpfunctions);
-	FREE_HASHTABLE(intern->registered_phpfunctions);
+	if (intern->registered_phpfunctions) {
+		zend_hash_destroy(intern->registered_phpfunctions);
+		FREE_HASHTABLE(intern->registered_phpfunctions);
+	}
 
 	if (intern->node_list) {
 		zend_hash_destroy(intern->node_list);