Bug #70685 [NEW]: Segfault for getClosure() internal method rebind with invalid $this

From: nikic Operating system: PHP version: 5.6.14 Package: Scripting Engine problem Bug Type: Bug Bug description:Segfault for getClosure() internal method rebind with invalid $this Description: ------------ So zend_create_closure correctly detects that this is wrong ... and then just goes on to bind NULL for $this, which is a lot worse. This has been fixed for PHP 7.0 as a side-effect of https://github.com/php/php-src/commit/4b821f0fc6aade0eb9793a8b4fa3cd28b347ac2f, but needs to be fixed for PHP 5.6 as well. Test script: --------------- <?php class cls {} $c = (new ReflectionMethod('SplStack', 'count'))->getClosure(new SplStack); $c = $c->bindTo(new cls); $c(); -- Edit bug report at https://bugs.php.net/bug.php?id=70685&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70685&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70685&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70685&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70685&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70685&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70685&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70685&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70685&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70685&r=support Expected behavior: https://bugs.php.net/fix.php?id=70685&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70685&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70685&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70685&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70685&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70685&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70685&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70685&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70685&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70685&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70685&r=mysqlcfg