1--TEST-- 2Bug #72730: imagegammacorrect allows arbitrary write access 3--EXTENSIONS-- 4gd 5--FILE-- 6<?php 7 8require __DIR__ . '/func.inc'; 9 10$img = imagecreatetruecolor(1, 1); 11 12trycatch_dump( 13 fn() => imagegammacorrect($img, -1, 1337) 14); 15 16?> 17--EXPECT-- 18!! [ValueError] imagegammacorrect(): Argument #2 ($input_gamma) must be greater than 0 19