undefined behavior in zend_builtin_functions.c

[chongwick]

Description

The following code:

<?php
function foo()
{
$v_370297 = 'c';
$v_370291 = foo($v_370297,);
}
$v_370292 = foo();

Resulted in this output:

/home/w023dtc/nightly_php/php-src/Zend/zend_builtin_functions.c:1967:9: runtime error: member access within null pointer of type 'const zend_op' (aka 'const struct _zend_op')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/w023dtc/nightly_php/php-src/Zend/zend_builtin_functions.c:1967:9

php -d "opcache.enable=1" -d "opcache.enable_cli=1" -d "opcache.jit_buffer_size=256M" -d "opcache.jit=1254" -d "opcache.jit_hot_func=1" -d "opcache.jit_hot_loop=1" -d "opcache.jit_hot_return=1" -d "opcache.jit_hot_side_exit=1" script.php

PHP Version

nightly

Operating System

ubuntu 22.04

[chongwick]

dupes to #18847

[iluuu1994]

Possibly, but let's keep this open so I can see tomorrow whether this one reproduces for me (though it looks suspiciously simple, so probably not). 🙂 Thanks

[iluuu1994]

Right, looks like a duplicate, and also can't reproduce...