Merge branch 'PHP-7.1'

ext/wddx/tests/bug73173.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Bug #73173: huge memleak when wddx_unserialize
+--SKIPIF--
+<?php if (!extension_loaded("wddx")) print "skip"; ?>
+--FILE--
+<?php
+
+$xml=<<<XML
+<?xml version='1.0'?>
+<!DOCTYPE wddxPacket SYSTEM 'wddx_0100.dtd'>
+<wddxPacket>
+<var name="
+XML;
+
+$xml .= str_repeat('F',0x80000);
+
+$xml .= <<<XML
+">
+</wddxPacket>
+XML;
+var_dump(wddx_deserialize($xml));
+
+?>
+--EXPECT--
+NULL

ext/wddx/wddx.c

@@ -241,6 +241,9 @@ static int wddx_stack_destroy(wddx_stack *stack)
 		}
 		efree(stack->elements);
 	}
+	if (stack->varname) {
+		efree(stack->varname);
+	}
 	return SUCCESS;
 }
 /* }}} */