Signed integer overflow in ext/standard/file.c

[YuanchengJiang]

Description

The following code:

<?php
$filename = __DIR__ . '/fgetcsv_variation23.tmp';
$fp = fopen ($filename, "r");
var_dump( fgetcsv($fp, PHP_INT_MAX) );

Resulted in this output:

/php-src/ext/standard/file.c:1901:9: runtime error: signed integer overflow: 9223372036854775807 + 1 cannot be represented in type 'long'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /php-src/ext/standard/file.c:1901:9 in 

PHP Version

PHP 8.4.0-dev

Operating System

ubuntu 22.04