Bug #62384 [Asn->Csd]: Attempting to invoke a Closure more than once causes segfault

Edit report at https://bugs.php.net/bug.php?id=62384&edit=1 ID: 62384 Updated by: felipe@php.net Reported by: alexander dot carver at gmail dot com Summary: Attempting to invoke a Closure more than once causes segfault -Status: Assigned +Status: Closed Type: Bug Package: Reflection related Operating System: Debian 6.0 PHP Version: 5.3.14 Assigned To: felipe Block user comment: N Private report: N New Comment: This bug has been fixed in SVN. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. For Windows: http://windows.php.net/snapshots/ Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2012-06-22 15:07:40] felipe@php.net Automatic comment on behalf of felipensp@gmail.com Revision: http://git.php.net/?p=php-src.git;a=commit;h=b8e946b02eac53f46cbfc8eefb5c91fb5b075c9d Log: - Fixed bug #62384 (Attempting to invoke a Closure more than once causes segfaul) ------------------------------------------------------------------------ [2012-06-22 06:37:09] alexander dot carver at gmail dot com Yes I can. php5 -m : [PHP Modules] bcmath bz2 calendar Core ctype curl date dba dom ereg exif fileinfo filter ftp gd gettext hash iconv json libxml mbstring mhash mysql mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar posix readline Reflection session shmop SimpleXML soap sockets SPL SQLite sqlite3 ssh2 standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter yaml zip zlib [Zend Modules] ------------------------------------------------------------------------ [2012-06-22 02:19:25] Reeze dot xia at gmail dot com Can you reproduce it when apc and xdebug disabled？ ------------------------------------------------------------------------ [2012-06-21 23:10:37] alexander dot carver at gmail dot com Wrong version number, sorry. ------------------------------------------------------------------------ [2012-06-21 23:08:39] alexander dot carver at gmail dot com Description: ------------ The code below should be fairly self-explanatory. Invoking a reflection of the __invoke method of the Closure class more than once per reflection instance causes a segfault. This happens regardless of context or argument parameters passed to ReflectionMethod::invokeArgs(). Can't imagine this is a common use case but thought I'd share anyway. PHP Version is 5.3.14. I don't have php configured to get a backtrace at the moment, and my .ini is pretty average. If you can't reproduce it with the script below I'll look into it more. php5 -m : [PHP Modules] apc bcmath bz2 calendar Core ctype curl date dba dom ereg exif fileinfo filter ftp gd gettext hash iconv json libxml mbstring mhash mysql mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar posix readline Reflection session shmop SimpleXML soap sockets SPL SQLite sqlite3 ssh2 standard sysvmsg sysvsem sysvshm tokenizer wddx xdebug xml xmlreader xmlwriter yaml zip zlib [Zend Modules] Xdebug Test script: --------------- <?php $closure1 = function($val){ return $val; }; $closure2 = function($val){ return $val; }; $reflection_class = new ReflectionClass($closure1); $reflection_method = $reflection_class->getMethod('__invoke'); $arguments1 = array('hello'); $arguments2 = array('world'); // Invoking once is OK... print $reflection_method->invokeArgs($closure1, $arguments1); if(true){ // But don't do it again! #print $reflection_method->invokeArgs($closure1, $arguments1); // Using different arguments per invokation makes no difference :( #print $reflection_method->invokeArgs($closure1, $arguments2); // Doesn't matter if you attempt to invoke a different closure with the same reflection. print $reflection_method->invokeArgs($closure2, $arguments1); } ?> Expected result: ---------------- "helloworld" printed Actual result: -------------- Segmentationfault ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=62384&edit=1