Segmentation fault (null pointer) in Zend/zend_builtin_functions.c

[YuanchengJiang]

Description

The following code:

<?php
class A {
public $prop {
get {
}
}
}
class B extends A {
}
get_class_vars('B');

Resulted in this output:

/php-src/Zend/zend_builtin_functions.c:735:12: runtime error: applying non-zero offset 4294967248 to null pointer
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /php-src/Zend/zend_builtin_functions.c:735:12 in

PHP Version

PHP 8.4.0-dev

Operating System

ubuntu 22.04

[cmb69]

Apparently, this is not related to inheritance, since

class A {
    public $prop {
        get {
        }
    }
}
get_class_vars('A');

triggers the same behavior.

@iluuu1994, since this looks like a property hook issue, you may want to have a look.