Edit report at http://bugs.php.net/bug.php?id=51105&edit=1
ID: 51105
Comment by: php at crummett dot us
Reported by: r3d dot w0rm at yahoo dot com
Summary: PHP str_repeat() Function Integer Overflow
Status: No Feedback
Type: Bug
Package: Strings related
Operating System: All
PHP Version: 5.3.2RC2
New Comment:
PHP says you do not have enough memory to do this. The string generated
would be 8GiB in size.
Also, this can be simplified as:
Reproduce code:
---------------
<?php
str_repeat('0x0x0x0x',999999999);
Actual result:
---------------
Fatal error: Possible integer overflow in memory allocation (8 *
999999999 + 1) in crash.php on line 2
Previous Comments:
------------------------------------------------------------------------
[2010-03-01 01:00:01] 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".
------------------------------------------------------------------------
[2010-02-21 17:26:53] [email protected]
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.
------------------------------------------------------------------------
[2010-02-21 16:33:01] r3d dot w0rm at yahoo dot com
Os : win Xp Sp 2 , Fedora 11
Cpu : 2.2
------------------------------------------------------------------------
[2010-02-21 15:14:28] [email protected]
Which processor and OS do you use? I get the expected fatal error here.
------------------------------------------------------------------------
[2010-02-21 14:44:34] r3d dot w0rm at yahoo dot com
Description:
------------
PHP str_repeat() Function Integer Overflow
AUTHOR : Sina Yazdanmehr(R3d.W0rm)
Discovered by : Sina Yazdanmehr (R3d.W0rm)
Our Site : http://IrCrash.com
Our Forums : http://ircrash.com/persian/
My Official WebSite : http://R3dW0rm.ir
IRCRASH Team Members : Khashayar Fereidani - R3d.w0rm (Sina Yazdanmehr)
Reproduce code:
---------------
<?php
//www.IrCrash.com
//By : R3d.W0rm
$str1 = str_repeat('0x0x0x0x',999999999);
$str2 = str_repeat($str,1);
?>
Expected result:
----------------
Fatal error: Possible integer overflow in memory allocation (8 *
999999999 + 1) in F:\Program Files\EasyPHP-5.3.1\www\over.php on line 4
Fatal error: Possible integer overflow in memory allocation (8 *
999999999 + 1) in /var/www/html/over.php on line 4
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=51105&edit=1
