Bug #62049 [Com]: A specific regex/input combo crashes PHP

Edit report at https://bugs.php.net/bug.php?id=62049&edit=1 ID: 62049 Comment by: arvids dot kokins at di dot lv Reported by: arvids dot kokins at di dot lv Summary: A specific regex/input combo crashes PHP Status: Open Type: Bug Package: PCRE related Operating System: Windows PHP Version: 5.4.3 Block user comment: N Private report: N New Comment: Looks like a warning is thrown with an internal error: http://codepad.org/FmlJi8N9 Some configurations need bigger input strings to trigger a crash, some react differently... Got HTTP error 101 (connection was reset) at home with the word "error" repeated 25 times. Previous Comments: ------------------------------------------------------------------------ [2012-05-16 19:58:30] nulle at gmx dot com Apache 2.2.9 PHP 5.3.1 Windows Everything works fine. ------------------------------------------------------------------------ [2012-05-16 15:54:06] arvids dot kokins at di dot lv Description: ------------ Test script crashes on web server (Apache 2.2.21) only with "empty response" (324). Suspected to be a limit/overflow problem since it works if "errorerror" is replaced with "error". Test script: --------------- <?php echo preg_match( '/^<a(.)+class="(.)?actor-link(.)?"(.)+>Super User<\/a>/', '<a class="actor-link" href="/errorerror.lv/lv/jomsocial/42-super-user/profile">Super User</a> added 2 new photos in <a href="/errorerror.lv/lv/jomsocial/42-super-user/photos/album?albumid=1">crap</a> album' ); echo "\nFINISHED!"; ?> Expected result: ---------------- "1\nFINISHED" Actual result: -------------- HTTP error 324: empty response. Probably PHP crash. Apache didn't crash. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=62049&edit=1