#32647 [Asn->Csd]: Using register_shutdown_function() with invalid callback can crash PHP

ID: 32647 Updated by: sniper@php.net -Summary: Register_shutdown_function can crash PHP Reported By: interghost at crovortex dot com -Status: Assigned +Status: Closed Bug Type: Reproducible crash Operating System: * PHP Version: 4.*, 5.* Assigned To: sniper New Comment: This bug has been fixed in CVS. 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/. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2005-04-09 21:05:43] interghost at crovortex dot com Description: ------------ When calling register_shutdown_function with an array argument in which the first index is an unset variable or if the first index is numeric 0 and the second any string variable apache2 crashes...I've tested it on Apache v2.0.52 and v2.0.53. In the server's error log it says: [Sat Apr 09 20:37:19 2005] [notice] Parent: child process exited with status 3221225477 -- Restarting. [Sat Apr 09 20:37:19 2005] [notice] Apache/2.0.53 (Win32) PHP/5.0.4 configured -- resuming normal operations [Sat Apr 09 20:37:19 2005] [notice] Server built: Feb 10 2005 06:11:34 [Sat Apr 09 20:37:19 2005] [notice] Parent: Created child process 3900 [Sat Apr 09 20:37:19 2005] [notice] Child 3900: Child process is running [Sat Apr 09 20:37:19 2005] [notice] Child 3900: Acquired the start mutex. [Sat Apr 09 20:37:19 2005] [notice] Child 3900: Starting 250 worker threads. Reproduce code: --------------- unset($obj); register_shutdown_function(array($obj,"")); register_shutdown_function(array($obj,"some string")); register_shutdown_function(array(0,"")); register_shutdown_function(array(0,"some string")); ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=32647&edit=1