1--TEST-- 2Bug #70345 (Multiple vulnerabilities related to PCRE functions) 3--FILE-- 4<?php 5$regex = '/(?=xyz\K)/'; 6$subject = "aaaaxyzaaaa"; 7 8var_dump(preg_split($regex, $subject)); 9 10$regex = '/(a(?=xyz\K))/'; 11$subject = "aaaaxyzaaaa"; 12preg_match($regex, $subject, $matches); 13 14var_dump($matches); 15?> 16--EXPECTF-- 17bool(false) 18 19Warning: preg_match(): Get subpatterns list failed in %s on line %d 20array(0) { 21} 22