Bug #68648 [NEW]: call_user_func inside __callStatic cause segmentation fault
| From: | valentiny510 at gmail dot com | Date: | Wed, 24 Dec 2014 15:08:21 +0000 |
| Subject: | Bug #68648 [NEW]: call_user_func inside __callStatic cause segmentation fault | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-189181@lists.php.net to get a copy of this message | ||
From: valentiny510 at gmail dot com
Operating system: Windows 8 x64
PHP version: 5.6.4
Package: Reproducible crash
Bug Type: Bug
Bug description:call_user_func inside __callStatic cause segmentation fault
Description:
------------
This piece of code make my apache to restart with status 3221225477.
One quick search on the web and find that is a segmentation fault on
windows.
#define STATUS_ACCESS_VIOLATION ((NTSTATUS)0xC0000005L)
I tried different combinations, with or without namespace, etc.., but
the result is always the same, Ex:
call_user_func(array('X', $method));
call_user_func(__NAMESPACE__ . '\X::exist');
call_user_func(array(__NAMESPACE__ . '\X', 'exist'));
I guess will recursively call the same method over and over but at least
php should not crash the apache or throw something
Test script:
---------------
<?php
namespace Y;
class X
{
public static function __callStatic($method, $args) {
if (is_callable([__CLASS__, $method])) {
if (empty($args)) {
call_user_func([__CLASS__, $method]);
return;
}
call_user_func([__CLASS__, $method], join(',', $args));
return;
}
throw new Exception("The class '" . __CLASS__ . "' does not have
a method called '$method'");
}
}
var_dump(X::exist('la bla'));
Expected result:
----------------
The class 'X' does not have a method called 'exist'
Actual result:
--------------
apache shutdown and restart
--
Edit bug report at https://bugs.php.net/bug.php?id=68648&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68648&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68648&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68648&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=68648&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=68648&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=68648&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=68648&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=68648&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=68648&r=support
Expected behavior: https://bugs.php.net/fix.php?id=68648&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=68648&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=68648&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=68648&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68648&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=68648&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=68648&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=68648&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=68648&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=68648&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=68648&r=mysqlcfg