php / php/php-src

integer overflow in imagerectangle

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#19,790 1 comment 0 reactions 1 assignee View on GitHub

@devnexen is already working on this.

Since Sep 10, 2025.

Bug Extension: gd Status: Verified
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Description

Description

The following code:

<?php
$v_19356 = 10;
$v_19357 = 10;
$v_19358 = imagecreatetruecolor($v_19356,$v_19357,);
$v_19359 = 1;
$v_19360 = 1;
$v_19361 = 1;
$v_19411 = 2147483647;
$v_19412 = -($v_19411);
$v_19416 = 'Foo';
$v_19417 = 'Bar';
$v_19418 = class_alias($v_19416,$v_19417,);
$v_19364 = imagerectangle($v_19358,$v_19359,$v_19360,$v_19361,$v_19412,$v_19418,);```

Resulted in this output:

/home/w023dtc/nightly_php/php-src/ext/gd/libgd/gd.c:693:32: runtime error: signed integer overflow: 1 - -2147483647 cannot be represented in type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/w023dtc/nightly_php/php-src/ext/gd/libgd/gd.c:693:32




### PHP Version

```plain
nightly
Operating System

ubuntu 22.04

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