1--TEST-- 2Bug #77381 (heap buffer overflow in multibyte match_at) 3--SKIPIF-- 4<?php extension_loaded('mbstring') or die('skip mbstring not available'); ?> 5--FILE-- 6<?php 7var_dump(mb_ereg("000||0\xfa","0")); 8var_dump(mb_ereg("(?i)000000000000000000000\xf0","")); 9var_dump(mb_ereg("0000\\"."\xf5","0")); 10var_dump(mb_ereg("(?i)FFF00000000000000000\xfd","")); 11?> 12--EXPECT-- 13int(1) 14bool(false) 15bool(false) 16bool(false) 17