UBSan abort in ext/sockets/sockets.c:373

[YuanchengJiang]

Description

The following code:

<?php
socket_strerror(-2147483648);

Resulted in this output:

/php-src/ext/sockets/sockets.c:373:11: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /php-src/ext/sockets/sockets.c:373:11

Such bugs look nonsensical to me. Shall I keep reporting them?

PHP Version

PHP 8.4.0-dev

Operating System

ubuntu 22.04

[YuanchengJiang]

it happens again in the latest commit

[devnexen]

I can t reproduce with last master, how does it look to you in ext/sockets/sockets.c around line 1258 (I assume you run 64 bits ubuntu) ? Actually I can, will make a PR