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Fix WeakMap object reference offset causing TypeError #8995

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Merged
arnaud-lb merged 2 commits into from
Jul 15, 2022
Merged

Fix WeakMap object reference offset causing TypeError #8995

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3e10f6f
Fix `WeakMap` object reference offset causing `TypeError`
Nevay Jul 13, 2022
b3f99e7
Use `ZVAL_DEREF`
Nevay Jul 13, 2022
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32 changes: 32 additions & 0 deletions Zend/tests/weakrefs/weakmap_object_reference.phpt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,32 @@
--TEST--
WeakMap object reference offset
--FILE--
<?php

$map = new WeakMap;
$obj = new stdClass;
$obj2 = &$obj;

$map[$obj] = 1;
var_dump(count($map));
var_dump($map);
var_dump(isset($map[$obj]));
var_dump(!empty($map[$obj]));
var_dump($map[$obj]);

?>
--EXPECT--
int(1)
object(WeakMap)#1 (1) {
[0]=>
array(2) {
["key"]=>
object(stdClass)#2 (0) {
}
["value"]=>
int(1)
}
}
bool(true)
bool(true)
int(1)
4 changes: 4 additions & 0 deletions Zend/zend_weakrefs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -310,6 +310,7 @@ static zval *zend_weakmap_read_dimension(zend_object *object, zval *offset, int
return NULL;
}

ZVAL_DEREF(offset);
if (Z_TYPE_P(offset) != IS_OBJECT) {
zend_type_error("WeakMap key must be an object");
return NULL;
Expand Down Expand Up @@ -340,6 +341,7 @@ static void zend_weakmap_write_dimension(zend_object *object, zval *offset, zval
return;
}

ZVAL_DEREF(offset);
if (Z_TYPE_P(offset) != IS_OBJECT) {
zend_type_error("WeakMap key must be an object");
return;
Expand Down Expand Up @@ -367,6 +369,7 @@ static void zend_weakmap_write_dimension(zend_object *object, zval *offset, zval
/* int return and check_empty due to Object Handler API */
static int zend_weakmap_has_dimension(zend_object *object, zval *offset, int check_empty)
{
ZVAL_DEREF(offset);
if (Z_TYPE_P(offset) != IS_OBJECT) {
zend_type_error("WeakMap key must be an object");
return 0;
Expand All @@ -386,6 +389,7 @@ static int zend_weakmap_has_dimension(zend_object *object, zval *offset, int che

static void zend_weakmap_unset_dimension(zend_object *object, zval *offset)
{
ZVAL_DEREF(offset);
if (Z_TYPE_P(offset) != IS_OBJECT) {
zend_type_error("WeakMap key must be an object");
return;
Expand Down