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From: nikic
Operating system:
PHP version: 7.0.17
Package: Scripting Engine problem
Bug Type: Bug
Bug description:Call trampoline leaked if callback not invoked
Description:
------------
If fci/fcc are acquired via zend_is_callable and the callback is
subsequently not used, the call trampoline is leaked. The script
demonstrates this using array_map() and the method name -- of course,
this also affects other functions, and the trampoline itself may also be
leaked.
Test script:
---------------
<?php
class Test {
public function __call($name, $args) {
echo "__call()\n";
}
}
$name = "foo" . ($x = "bar");
array_map([new Test, $name], []);
--
Edit bug report at https://bugs.php.net/bug.php?id=74345&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74345&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74345&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74345&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=74345&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=74345&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=74345&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=74345&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=74345&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=74345&r=support
Expected behavior: https://bugs.php.net/fix.php?id=74345&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=74345&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=74345&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=74345&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74345&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=74345&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=74345&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=74345&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74345&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=74345&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=74345&r=mysqlcfg