#43990 [NEW]: session_start() - failed: Permission denied (13)

From: Date: Thu, 31 Jan 2008 04:30:50 +0000
Subject: #43990 [NEW]: session_start() - failed: Permission denied (13)
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-121811@lists.php.net to get a copy of this message 
From:             antonprk at mail dot ru
Operating system: Linux
PHP version:      4.4.8
PHP Bug Type:     Session related
Bug description:  session_start() - failed: Permission denied (13)

Description:
------------
In PHP 4.4.4, 4.4.7, 4.4.8, on a server more than 200 users at which
periodically arise the specified error.
In php.ini add an option the name of a file of session.

2008-01-31 05:33:36 Warning(2): Unknown():
open(/tmp/sess_842bfb761b488cb7c0df711a162f6b56, O_RDWR) failed: Permission
denied (13) in /home/USER_ONE/lib/session.inc (/eng.php) on line 24

root@server [/tmp]# ls -l --full-time
sess_842bfb761b488cb7c0df711a162f6b56
-rw-------  1 USER_TWO USER_TWO 46 2008-01-31 05:33:26.000000000 +0300
sess_842bfb761b488cb7c0df711a162f6b56


Two different users try to use one file of session.

Reproduce code:
---------------
USER_ONE

<?php
session_start();
?>


USER_TWO

<?php
session_start();
?>

Expected result:
----------------
Creation of not existing file of session was expected.

Actual result:
--------------
Attempt of creation of already existing file of session.

-- 
Edit bug report at http://bugs.php.net/?id=43990&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=43990&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=43990&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=43990&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=43990&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=43990&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=43990&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=43990&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=43990&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=43990&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=43990&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=43990&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=43990&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=43990&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=43990&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=43990&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=43990&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=43990&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=43990&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=43990&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=43990&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=43990&r=mysqlcfg

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