ID: 47799 Comment by: amr dot mostafa at gmail dot com Reported By: mb at insidetheweb dot de Status: No Feedback Bug Type: PCRE related Operating System: * PHP Version: 5.2.9 New Comment:
I've created a script to reproduce this. I was able to reproduce it on *some* systems (Ubuntu 9.04) using PHP 5.2.10, 5.2.11 and 5.3.0 (using vanilla PHP downloaded from php.net). I've also tried compiling PHP 5.3.0 against vanilla PCRE 7.9 (using --with-pcre-regex) but that didn't make any difference. However, I cannot reproduce this issue on CentOS 5.3 and 4.6 with PHP 5.2.9 and 5.2.10 from Oracle RPMs. Script: http://gist.github.com/212434 (download directly: http://gist.github.com/raw/212434/6cf1720cbac05340a5cb2a5c6431b2a4f6024e0d/pcre%20segfault) Previous Comments: ------------------------------------------------------------------------ [2009-04-07 01:00:00] php-bugs at lists dot php dot net No feedback was provided for this bug for over a week, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". ------------------------------------------------------------------------ [2009-03-30 18:06:07] j...@php.net You would find out how to generate the backtrace if you bother reading the document in the link provided. And you don't need to do it in web server, CLI is fine too. ------------------------------------------------------------------------ [2009-03-28 01:29:37] mb at insidetheweb dot de Sorry, no clue how to get a backtrace on a running system. This httpd -X does not work. Not even mod_backtrace. Simply Download the Text_Wiki with Mediawiki and parse some large Table. You get the error then yourself. I really doubt its system related. ------------------------------------------------------------------------ [2009-03-27 16:16:34] fel...@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ [2009-03-27 01:09:11] mb at insidetheweb dot de Description: ------------ When i do this Regex #^\{\|(.*?)(?:^\|\+(.*?))?(^(?:((?R))|.)*?)^\|}#msi on larger requests, it causes a seqfault. You just need to be some chars above some kind of limit and you got the error. Reproduce code: --------------- http://cvs.php.net/viewvc.cgi/pear/Text_Wiki/Text/Wiki/Parse/Mediawiki/Table.php?revision=1.11&view=markup Its Text_Wiki_Mediawiki. Expected result: ---------------- HTTPD Seqfault ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47799&edit=1
