Bug #74345 [Opn->Csd]: Call trampoline leaked if callback not invoked

Edit report at https://bugs.php.net/bug.php?id=74345&edit=1 ID: 74345 Updated by: nikic@php.net Reported by: nikic@php.net Summary: Call trampoline leaked if callback not invoked -Status: Open +Status: Closed Type: Bug Package: Scripting Engine problem PHP Version: 7.0.17 Block user comment: N Private report: N New Comment: Automatic comment on behalf of nikita.ppv@gmail.com Revision: http://git.php.net/?p=php-src.git;a=commit;h=abc457fe1ddba07b1574744593f81ce1005025cd Log: Fixed bug #74345 Previous Comments: ------------------------------------------------------------------------ [2017-03-30 21:56:33] nikic@php.net 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 this bug report at https://bugs.php.net/bug.php?id=74345&edit=1