Bug #68611 [NEW]: Segmentation fault with deep linked list

From: Date: Mon, 15 Dec 2014 13:16:15 +0000
Subject: Bug #68611 [NEW]: Segmentation fault with deep linked list
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-189071@lists.php.net to get a copy of this message 
From:             reen at alphacomm dot nl
Operating system: Ubuntu
PHP version:      5.6.3
Package:          Reproducible crash
Bug Type:         Bug
Bug description:Segmentation fault with deep linked list

Description:
------------
Tested against:

PHP 5.6.3 (cli) (built: Nov 20 2014 10:45:50) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2014 Zend Technologies
with Xdebug v2.2.6, Copyright (c) 2002-2014, by Derick Rethans

AND

PHP 5.5.9-1ubuntu4.5 (cli) (built: Oct 29 2014 11:59:10) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies
    with Zend OPcache v7.0.3, Copyright (c) 1999-2014, by Zend
Technologies
    with Xdebug v2.2.3, Copyright (c) 2002-2013, by Derick Rethans

Test script:
---------------
<?php
class A {
    public $next;
}

$first = $a = new A();
for ($i = 0; $i < 100000; $i++) {
    $a = $a->next = new A();
}

echo 'Complete'.PHP_EOL;

Expected result:
----------------
Complete

Actual result:
--------------
Complete
Segmentation fault: 11



Complete
Segmentation fault (core dumped)

-- 
Edit bug report at https://bugs.php.net/bug.php?id=68611&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=68611&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=68611&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=68611&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=68611&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=68611&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=68611&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=68611&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=68611&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=68611&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=68611&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=68611&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=68611&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=68611&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68611&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=68611&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=68611&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=68611&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=68611&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=68611&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=68611&r=mysqlcfg

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