#36246 [NEW]: Memory problem (double free)

From: Date: Wed, 01 Feb 2006 12:36:23 +0000
Subject: #36246 [NEW]: Memory problem (double free)
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-92768@lists.php.net to get a copy of this message 
From:             eustaquiorangel at yahoo dot com
Operating system: Linux, Slackware 10.2 (current)
PHP version:      5.1.2
PHP Bug Type:     XSLT related
Bug description:  Memory problem (double free)

Description:
------------
After I use the XSLT extension to process a huge file, I got an error on
the Apache error_log and a blank page on the browser. The error is:

*** glibc detected *** double free or corruption (fasttop): 0x08236cc8
***
[Wed Feb 01 08:56:12 2006] [notice] child pid 7121 exit signal Aborted (6)

Reproduce code:
---------------
http://pastebin.com/533629

Expected result:
----------------
A regular HTML page and no error on error_log.

Actual result:
--------------
Sometimes it becomes blank and after some realoading it works, but
*always* with an error message on error_log.

I tested the code on all the ways I could but the only solution was
downgrade PHP to 4.4.2 with Sablotron support.

Then everything run fine (same Apache version, same OS), the only negavite
thing is that it takes a lot of time to show the results on the browser,
while using PHP 5.1.2 it was very fast.


-- 
Edit bug report at http://bugs.php.net/?id=36246&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=36246&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=36246&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=36246&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=36246&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=36246&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=36246&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=36246&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=36246&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=36246&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=36246&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=36246&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=36246&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=36246&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=36246&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=36246&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=36246&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=36246&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=36246&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=36246&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=36246&r=mysqlcfg

Thread (15 messages)

« previous php.bugs (#92768) next »