Bug #62500 [Opn->Csd]: Segfault in DateInterval class when extended

Edit report at https://bugs.php.net/bug.php?id=62500&edit=1 ID: 62500 Updated by: laruence@php.net Reported by: rik at c-ict dot com Summary: Segfault in DateInterval class when extended -Status: Open +Status: Closed Type: Bug Package: Reproducible crash Operating System: At least Linux PHP Version: 5.4.4 -Assigned To: +Assigned To: laruence 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: ------------------------------------------------------------------------ [2012-07-08 16:28:00] laruence@php.net Automatic comment on behalf of laruence Revision: http://git.php.net/?p=php-src.git;a=commit;h=e3b9b1e6dc016d9128ac5e9ed95aa5b1a5065e5f Log: Fixed Bug #62500 (Segfault in DateInterval class when extended) ------------------------------------------------------------------------ [2012-07-08 16:26:27] laruence@php.net Automatic comment on behalf of laruence Revision: http://git.php.net/?p=php-src.git;a=commit;h=e3b9b1e6dc016d9128ac5e9ed95aa5b1a5065e5f Log: Fixed Bug #62500 (Segfault in DateInterval class when extended) ------------------------------------------------------------------------ [2012-07-08 08:19:10] reeze dot xia at gmail dot com It missing a initialized checking when accessing member variable. I've sent a patch here: https://github.com/php/php-src/pull/123 ------------------------------------------------------------------------ [2012-07-07 16:00:14] rik at c-ict dot com Also a short note, This problem can be worked around by calling the parent constructor before accessing any members. ------------------------------------------------------------------------ [2012-07-07 15:53:59] rik at c-ict dot com Description: ------------ Hello, I found a way to reproduce a segfault on at least linux but possibly on other OS'es as wel. It is very simple to reproduce: 1 overload the DateInterval in a new class. 2 overload the constructor 3 use one of the member variables. [Sat Jul 07 17:46:32 2012] [notice] child pid 5775 exit signal Segmentation fault (11) I tested with PHP 5.4.4 and it is there, but it also exists in PHP 5.3 Test script: --------------- <?php class Crasher extends DateInterval { public function __construct($time_spec) { echo "Yes i did it, with the next statement it gives a segfault\n"; // It doesn't matter if we take the y parameter or any other. $this->y = 3; } } $c = new Crasher('blah'); ?> Expected result: ---------------- Yes i did it, with the next statement it gives a segfault Segmentation fault ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=62500&edit=1