1--TEST-- 2Bug #81739 (OOB read due to insufficient validation in imageloadfont()) 3--SKIPIF-- 4<?php 5if (!extension_loaded("gd")) die("skip gd extension not available"); 6?> 7--FILE-- 8<?php 9$s = fopen(__DIR__ . "/font.font", "w"); 10// header without character data 11fwrite($s, "\x01\x00\x00\x00\x20\x00\x00\x00\x08\x00\x00\x00\x08\x00\x00\x00"); 12fclose($s); 13var_dump(imageloadfont(__DIR__ . "/font.font")); 14?> 15--CLEAN-- 16<?php 17@unlink(__DIR__ . "/font.font"); 18?> 19--EXPECTF-- 20Warning: imageloadfont(): %croduct of memory allocation multiplication would exceed INT_MAX, failing operation gracefully 21 in %s on line %d 22 23Warning: imageloadfont(): Error reading font, invalid font header in %s on line %d 24bool(false)
