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ndosschendossche
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Merge branch 'PHP-8.1' into PHP-8.2
* PHP-8.1: Fix GH-8996: DOMNode serialization on PHP ^8.1 Fix GH-12380: JIT+private array property access inside closure accesses private property in child class
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‎NEWS‎

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Original file line numberDiff line numberDiff line change
@@ -19,6 +19,7 @@ PHP NEWS
1919

2020
- DOM:
2121
. Restore old namespace reconciliation behaviour. (nielsdos)
22+
. Fixed bug GH-8996 (DOMNode serialization on PHP ^8.1). (nielsdos)
2223

2324
- Fileinfo:
2425
. Fixed bug GH-11891 (fileinfo returns text/xml for some svg files). (usarise)
@@ -42,6 +43,8 @@ PHP NEWS
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4344
- Opcache:
4445
. Fixed opcache_invalidate() on deleted file. (mikhainin)
46+
. Fixed bug GH-12380 (JIT+private array property access inside closure
47+
accesses private property in child class). (nielsdos)
4548

4649
- PCRE:
4750
. Fixed bug GH-11956 (Backport upstream fix, PCRE regular expressions with

‎ext/dom/node.c‎

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@@ -1786,4 +1786,25 @@ PHP_METHOD(DOMNode, getLineNo)
17861786
}
17871787
/* }}} */
17881788

1789+
/**
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* We want to block the serialization and unserialization of DOM classes.
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* However, using @not-serializable makes the child classes also not serializable, even if the user implements the methods.
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* So instead, we implement the methods wherein we throw exceptions.
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* The reason we choose these methods is because:
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* - If the user implements __serialize / __unserialize, the respective throwing methods are not called.
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* - If the user implements __sleep / __wakeup, then it's also not a problem because they will not enter the throwing methods.
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*/
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PHP_METHOD(DOMNode, __sleep)
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{
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zend_throw_exception_ex(NULL, 0, "Serialization of '%s' is not allowed, unless serialization methods are implemented in a subclass", ZSTR_VAL(Z_OBJCE_P(ZEND_THIS)->name));
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RETURN_THROWS();
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}
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PHP_METHOD(DOMNode, __wakeup)
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{
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zend_throw_exception_ex(NULL, 0, "Unserialization of '%s' is not allowed, unless unserialization methods are implemented in a subclass", ZSTR_VAL(Z_OBJCE_P(ZEND_THIS)->name));
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RETURN_THROWS();
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}
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17891810
#endif

‎ext/dom/php_dom.stub.php‎

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Original file line numberDiff line numberDiff line change
@@ -291,7 +291,6 @@ public function after(...$nodes): void;
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public function replaceWith(...$nodes): void;
292292
}
293293

294-
/** @not-serializable */
295294
class DOMNode
296295
{
297296
/** @readonly */
@@ -339,6 +338,10 @@ class DOMNode
339338

340339
public string $textContent;
341340

341+
public function __sleep(): array {}
342+
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public function __wakeup(): void {}
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342345
/** @return DOMNode|false */
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public function appendChild(DOMNode $node) {}
344347

@@ -391,7 +394,6 @@ public function removeChild(DOMNode $child) {}
391394
public function replaceChild(DOMNode $node, DOMNode $child) {}
392395
}
393396

394-
/** @not-serializable */
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class DOMNameSpaceNode
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{
397399
/** @readonly */
@@ -417,6 +419,12 @@ class DOMNameSpaceNode
417419

418420
/** @readonly */
419421
public ?DOMNode $parentNode;
422+
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/** @implementation-alias DOMNode::__sleep */
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public function __sleep(): array {}
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426+
/** @implementation-alias DOMNode::__wakeup */
427+
public function __wakeup(): void {}
420428
}
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class DOMImplementation

‎ext/dom/php_dom_arginfo.h‎

Lines changed: 16 additions & 3 deletions
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‎ext/dom/tests/gh8996.phpt‎

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@@ -0,0 +1,120 @@
1+
--TEST--
2+
GH-8996: DOMNode serialization on PHP ^8.1
3+
--EXTENSIONS--
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dom
5+
--FILE--
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<?php
7+
8+
echo "=== __sleep and __wakeup ===\n";
9+
10+
class SerializableDomDocumentSleepWakeup extends DOMDocument
11+
{
12+
private $xmlData;
13+
14+
public function __sleep(): array
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{
16+
$this->xmlData = $this->saveXML();
17+
return ['xmlData'];
18+
}
19+
20+
public function __wakeup(): void
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{
22+
$this->loadXML($this->xmlData);
23+
}
24+
}
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26+
$dom = new SerializableDomDocumentSleepWakeup('1.0', 'UTF-8');
27+
$dom->loadXML('<tag>value</tag>');
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$serialized = serialize($dom);
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var_dump($serialized);
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$unserialized = unserialize($serialized);
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echo "Serialized:\n-----------\n$serialized\n-----------\nRestored:\n-----------\n{$unserialized->saveXml()}";
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echo "=== __serialize and __unserialize ===\n";
36+
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class SerializableDomDocument__Serialize__Unserialize extends DOMDocument
38+
{
39+
public function __serialize(): array
40+
{
41+
return ['xmlData' => $this->saveXML()];
42+
}
43+
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public function __unserialize(array $data): void
45+
{
46+
$this->loadXML($data['xmlData']);
47+
}
48+
}
49+
50+
$dom = new SerializableDomDocument__Serialize__Unserialize('1.0', 'UTF-8');
51+
$dom->loadXML('<tag>value</tag>');
52+
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$serialized = serialize($dom);
54+
$unserialized = unserialize($serialized);
55+
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echo "Serialized:\n-----------\n$serialized\n-----------\nRestored:\n-----------\n{$unserialized->saveXml()}";
57+
58+
echo "=== serialize and unserialize ===\n";
59+
60+
class SerializableDomDocumentSerializeUnserialize extends DOMDocument implements Serializable
61+
{
62+
public function serialize(): ?string
63+
{
64+
return $this->saveXML();
65+
}
66+
67+
public function unserialize(string $data): void
68+
{
69+
$this->loadXML($data);
70+
}
71+
}
72+
73+
$dom = new SerializableDomDocumentSerializeUnserialize('1.0', 'UTF-8');
74+
$dom->loadXML('<tag>value</tag>');
75+
76+
$serialized = serialize($dom);
77+
$unserialized = unserialize($serialized);
78+
79+
echo "Serialized:\n-----------\n$serialized\n-----------\nRestored:\n-----------\n{$unserialized->saveXml()}";
80+
81+
?>
82+
--EXPECTF--
83+
=== __sleep and __wakeup ===
84+
string(144) "O:34:"SerializableDomDocumentSleepWakeup":1:{s:43:"%0SerializableDomDocumentSleepWakeup%0xmlData";s:39:"<?xml version="1.0"?>
85+
<tag>value</tag>
86+
";}"
87+
Serialized:
88+
-----------
89+
O:34:"SerializableDomDocumentSleepWakeup":1:{s:43:"%0SerializableDomDocumentSleepWakeup%0xmlData";s:39:"<?xml version="1.0"?>
90+
<tag>value</tag>
91+
";}
92+
-----------
93+
Restored:
94+
-----------
95+
<?xml version="1.0"?>
96+
<tag>value</tag>
97+
=== __serialize and __unserialize ===
98+
Serialized:
99+
-----------
100+
O:47:"SerializableDomDocument__Serialize__Unserialize":1:{s:7:"xmlData";s:39:"<?xml version="1.0"?>
101+
<tag>value</tag>
102+
";}
103+
-----------
104+
Restored:
105+
-----------
106+
<?xml version="1.0"?>
107+
<tag>value</tag>
108+
=== serialize and unserialize ===
109+
110+
Deprecated: SerializableDomDocumentSerializeUnserialize implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in %s on line %d
111+
Serialized:
112+
-----------
113+
C:43:"SerializableDomDocumentSerializeUnserialize":39:{<?xml version="1.0"?>
114+
<tag>value</tag>
115+
}
116+
-----------
117+
Restored:
118+
-----------
119+
<?xml version="1.0"?>
120+
<tag>value</tag>

‎ext/dom/tests/not_serializable.phpt‎

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@@ -36,7 +36,7 @@ try {
3636

3737
?>
3838
--EXPECT--
39-
Serialization of 'DOMDocument' is not allowed
40-
Serialization of 'DOMElement' is not allowed
39+
Serialization of 'DOMDocument' is not allowed, unless serialization methods are implemented in a subclass
40+
Serialization of 'DOMElement' is not allowed, unless serialization methods are implemented in a subclass
4141
Serialization of 'DOMXPath' is not allowed
42-
Serialization of 'DOMNameSpaceNode' is not allowed
42+
Serialization of 'DOMNameSpaceNode' is not allowed, unless serialization methods are implemented in a subclass

‎ext/dom/tests/not_unserializable.phpt‎

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1+
--TEST--
2+
DOM classes are not unserializable
3+
--EXTENSIONS--
4+
dom
5+
--FILE--
6+
<?php
7+
8+
$classes = [
9+
"DOMXPath",
10+
"DOMDocument",
11+
"DOMNode",
12+
"DOMNameSpaceNode",
13+
];
14+
15+
foreach ($classes as $class)
16+
{
17+
try {
18+
unserialize('O:' . strlen($class) . ':"' . $class . '":0:{}');
19+
} catch (Exception $e) {
20+
echo $e->getMessage(), "\n";
21+
}
22+
}
23+
24+
?>
25+
--EXPECT--
26+
Unserialization of 'DOMXPath' is not allowed
27+
Unserialization of 'DOMDocument' is not allowed, unless unserialization methods are implemented in a subclass
28+
Unserialization of 'DOMNode' is not allowed, unless unserialization methods are implemented in a subclass
29+
Unserialization of 'DOMNameSpaceNode' is not allowed, unless unserialization methods are implemented in a subclass

‎ext/opcache/jit/zend_jit.c‎

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@@ -655,7 +655,11 @@ static zend_property_info* zend_get_known_property_info(const zend_op_array *op_
655655
return info;
656656
} else if (on_this) {
657657
if (ce == info->ce) {
658-
return info;
658+
if (ce == op_array->scope) {
659+
return info;
660+
} else {
661+
return NULL;
662+
}
659663
} else if ((info->flags & ZEND_ACC_PROTECTED)
660664
&& instanceof_function_slow(ce, info->ce)) {
661665
return info;

‎ext/opcache/tests/jit/gh12380.phpt‎

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1+
--TEST--
2+
GH-12380: JIT+private array property access inside closure accesses private property in child class
3+
--INI--
4+
opcache.enable=1
5+
opcache.enable_cli=1
6+
opcache.file_update_protection=0
7+
opcache.jit_buffer_size=1M
8+
opcache.protect_memory=1
9+
opcache.jit=tracing
10+
opcache.jit_hot_loop=1
11+
opcache.jit_hot_func=1
12+
opcache.jit_hot_return=1
13+
opcache.jit_hot_side_exit=1
14+
--EXTENSIONS--
15+
opcache
16+
--FILE--
17+
<?php
18+
19+
abstract class a
20+
{
21+
private int $v = 1;
22+
23+
public function test(): void
24+
{
25+
var_dump($this->v);
26+
(function (): void {
27+
var_dump($this->v);
28+
})();
29+
}
30+
}
31+
32+
final class b extends a {
33+
private int $v = 0;
34+
}
35+
$a = new b;
36+
37+
for ($i = 0; $i < 10; $i++) {
38+
$a->test();
39+
}
40+
41+
?>
42+
--EXPECT--
43+
int(1)
44+
int(1)
45+
int(1)
46+
int(1)
47+
int(1)
48+
int(1)
49+
int(1)
50+
int(1)
51+
int(1)
52+
int(1)
53+
int(1)
54+
int(1)
55+
int(1)
56+
int(1)
57+
int(1)
58+
int(1)
59+
int(1)
60+
int(1)
61+
int(1)
62+
int(1)

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