php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login
Bug #70562 preg_replace segmentation fault - string length
Submitted: 2015-09-23 14:02 UTC Modified: 2016-07-31 04:22 UTC
Votes:5
Avg. Score:4.4 ± 0.5
Reproduced:5 of 5 (100.0%)
Same Version:1 (20.0%)
Same OS:2 (40.0%)
From: malcolm at memiah dot co dot uk Assigned: cmb (profile)
Status: No Feedback Package: PCRE related
PHP Version: 5.6.13 OS: CentOS Linux release 7.0.1406 (C
Private report: No CVE-ID: None
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If this is not your bug, you can add a comment by following this link.
If this is your bug, but you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: malcolm at memiah dot co dot uk
New email:
PHP Version: OS:

 

 [2015-09-23 14:02 UTC] malcolm at memiah dot co dot uk
Description:
------------
Running preg_replace on a string length over 8435 causes a segmentation fault. Running default php.ini config. 

Please see attached script to reproduce. This happens on the CLI as well as through an apache handler. 

Test script:
---------------
<?php

$pattern   = '/(.)*/';
$limit     = 9000;
$string    = 'a';

for ( $i = 0; $i <= $limit; $i++ ) {

    $string .= 'a';
    echo strlen($string) . "\n";
    echo mb_strlen($string);

    preg_replace($pattern, '', $string);
}

echo 'done';

exit;


Patches

Add a Patch

Pull Requests

Add a Pull Request

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2016-07-21 12:34 UTC] cmb@php.net
-Status: Open +Status: Feedback -Assigned To: +Assigned To: cmb
 [2016-07-21 12:34 UTC] cmb@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.
 [2016-07-31 04:22 UTC] php-bugs at lists dot php dot net
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 
PHP Copyright © 2001-2024 The PHP Group
All rights reserved.
Last updated: Sun Jul 14 22:01:28 2024 UTC