Bug #66283 [Fbk->Opn]: Segmentation fault

From: Date: Fri, 13 Dec 2013 10:05:23 +0000
Subject: Bug #66283 [Fbk->Opn]: Segmentation fault
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-183311@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=66283&edit=1

 ID:                 66283
 User updated by:    jan dot kahoun at heureka dot cz
 Reported by:        jan dot kahoun at heureka dot cz
 Summary:            Segmentation fault
-Status:             Feedback
+Status:             Open
 Type:               Bug
 Package:            MySQLi related
 Operating System:   Centos 6.2
 PHP Version:        5.4.22
 Block user comment: N
 Private report:     N

 New Comment:

Modified test script is here http://codepad.org/asoU94b4
It will reproduce the bug. It is not easy to reporduce it, so I do not have shorter code now.


Previous Comments:
------------------------------------------------------------------------
[2013-12-13 09:27:26] krakjoe@php.net

Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.



------------------------------------------------------------------------
[2013-12-13 08:41:20] jan dot kahoun at heureka dot cz

Description:
------------
Using mysqli and multi_query can sometimes lead to Segmentation fault when trying to free the
result.

Test script:
---------------
http://codepad.org/WNxylU8G

Expected result:
----------------
Just PHP Fatal error

Actual result:
--------------
PHP Fatal error:  Allowed memory size of 96468992 bytes exhausted (tried to allocate 2 bytes) in
/home/web/index.php on line 45
PHP Stack trace:
PHP   1. {main}() /home/web/index.php:0
PHP   2. mysqli_result->free() /home/web/index.php:45

Fatal error: Allowed memory size of 96468992 bytes exhausted (tried to allocate 2 bytes) in
/home/web/index.php on line 45

Call Stack:
    0.0002     239480   1. {main}() /home/web/index.php:0
    0.5828   96413160   2. mysqli_result->free() /home/web/index.php:45

Segmentation fault (core dumped)


------------------------------------------------------------------------



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