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Fix reference returned from CallbackFilterIterator::accept()

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Fixes oss-fuzz #58181
This commit is contained in:
Ilija Tovilo
2023-04-20 10:18:18 +02:00
parent 0ab51a9561
commit 5855bdcd6c
2 changed files with 16 additions and 0 deletions
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14
Zend/tests/oss_fuzz_58181.phpt Normal file
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@@ -0,0 +1,14 @@
--TEST--
oss-fuzz #58181: Fix unexpected reference returned from CallbackFilterIterator::accept()
--FILE--
<?php
function test(array $data) {
$iterator = new ArrayIterator($data);
$iterator = new \CallbackFilterIterator($iterator, fn&() => true);
$iterator->rewind();
}
test(['a', 'b']);
?>
--EXPECTF--
Notice: Only variable references should be returned by reference in %s on line %d

2
ext/spl/spl_iterators.c
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@@ -1787,6 +1787,8 @@ PHP_METHOD(CallbackFilterIterator, accept)
if (zend_call_function(fci, fcc) != SUCCESS || Z_ISUNDEF_P(return_value)) {
RETURN_FALSE;
} else if (Z_ISREF_P(return_value)) {
zend_unwrap_reference(return_value);
}
}
/* }}} */