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Fix GH-11178: Segmentation fault in spl_array_it_get_current_data (PHP 8.1.18) #11182

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Fix GH-11178: Segmentation fault in spl_array_it_get_current_data (PHP 8.1.18) #11182

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3 changes: 2 additions & 1 deletion ext/spl/spl_array.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1037,7 +1037,8 @@ static zval *spl_array_it_get_current_data(zend_object_iterator *iter) /* {{{ */
zend_hash_get_current_key_ex(aht, &key, NULL, spl_array_get_pos_ptr(aht, object));
zend_class_entry *ce = Z_OBJCE(object->array);
zend_property_info *prop_info = zend_get_property_info(ce, key, true);
if (ZEND_TYPE_IS_SET(prop_info->type)) {
ZEND_ASSERT(prop_info != ZEND_WRONG_PROPERTY_INFO);
if (EXPECTED(prop_info != NULL) && ZEND_TYPE_IS_SET(prop_info->type)) {
if (prop_info->flags & ZEND_ACC_READONLY) {
zend_throw_error(NULL,
"Cannot acquire reference to readonly property %s::$%s",
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28 changes: 28 additions & 0 deletions ext/spl/tests/gh11178.phpt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,28 @@
--TEST--
GH-11178 (Segmentation fault in spl_array_it_get_current_data (PHP 8.1.18))
--FILE--
<?php
#[AllowDynamicProperties]
class A implements IteratorAggregate {
function __construct() {
$this->{'x'} = 1;
}

function getIterator(): Traversable {
return new ArrayIterator($this);
}
}

$obj = new A;

foreach ($obj as $k => &$v) {
$v = 3;
}

var_dump($obj);
?>
--EXPECT--
object(A)#1 (1) {
["x"]=>
&int(3)
}