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Assertion failure Zend/zend_hash.c:1543 #17416
Description
Description
The following code:
<?php
function Error2Exception($errno, $errstr, $errfile, $errline)
{
throw new MyException($errstr, $errno);
}
set_error_handler('Error2Exception');
function bar(array &$a): ?bool {
foreach ($a as $key => $val) {
if ($val === 2) {
unset($a[$fusion]);
}
}
}
function foo($a, bool $b): bool {
do {
$res = bar($a);
} while ($res === null && $n !== $n2);
}
foo([2,'a'=>5], false);Resulted in this output:
php: /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_hash.c:1543: zend_result zend_hash_del(HashTable *, zend_string *): Assertion `(zend_gc_refcount(&(ht)->gc) == 1) || ((ht)->u.flags & (1<<6))' failed.
Aborted (core dumped)
PHP Version
nightly
Operating System
No response
Activity
arnaud-lb commentedon Jan 9, 2025
Minimal reproducer:
$ais separated at the beginning ofZEND_UNSET_DIM, but new references are created when collecting arguments for the exception backtrace, before actually modifying the array.This would be fixed by delaying error handling (#12805).
Defer user error handlers raised from user-code opcodes