Bug #70873 [NEW]: Regression on private static properties access

From: Date: Fri, 06 Nov 2015 20:19:28 +0000
Subject: Bug #70873 [NEW]: Regression on private static properties access
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-197086@lists.php.net to get a copy of this message
From:             marcio
Operating system: 
PHP version:      7.0.0RC6
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:Regression on private static properties access

Description:
------------
It seems that since PHP7 alpha it's possible to access private static
properties of upper classes. This is an unwanted regression
https://3v4l.org/4XheY

Currently on master, the same example has a failing assertion and a
segfault:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
php: php/Zend/zend_object_handlers.c:279: zend_verify_property_access:
Assertion `property_info->flags & 0x200' failed.

Program received signal SIGABRT, Aborted.
0x00007ffff5ea5877 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
56        return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);

Expected result:
----------------
Same error as php 5.6: Fatal error: Cannot access property B::$x in
/in/4XheY on line 9

Actual result:
--------------
On RC6 it's possible to access the private static property from the
upper class.
On master it causes a segfault.

-- 
Edit bug report at https://bugs.php.net/bug.php?id=70873&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=70873&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=70873&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=70873&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=70873&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=70873&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=70873&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=70873&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=70873&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=70873&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=70873&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=70873&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=70873&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=70873&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70873&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=70873&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=70873&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=70873&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=70873&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=70873&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=70873&r=mysqlcfg



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