#30798 [Bgs->Csd]: debug_backtrace returns invalid data in some cases

ID: 30798 User updated by: mikko dot rantalainen at peda dot net Reported By: mikko dot rantalainen at peda dot net -Status: Bogus +Status: Closed Bug Type: Reproducible crash Operating System: Mandrake Linux 10.0 -PHP Version: Irrelevant +PHP Version: 4.3.9 New Comment: I just checked this problem again. The reproduce code segfaults 4.3.9 but works with 4.3.10. Marking as closed. Previous Comments: ------------------------------------------------------------------------ [2004-11-15 18:40:47] derick@php.net Thank you for taking the time to report a problem with PHP. Unfortunately you are not using a current version of PHP -- the problem might already be fixed. Please download a new PHP version from http://www.php.net/downloads.php If you are able to reproduce the bug with one of the latest versions of PHP, please change the PHP version on this bug report to the version you tested and change the status back to "Open". Again, thank you for your continued support of PHP. . ------------------------------------------------------------------------ [2004-11-15 18:31:29] mikko dot rantalainen at peda dot net Description: ------------ Attached script crashes PHP 4.3.4 (plus security fixes) which is latest versions distributed with Mandrake Linux. Reproduce code: --------------- <?php function __errorHandler($errno, $errstr, $errfile, $errline, $errcontext) { error_log("__errorHandler: $errno: $errstr"); $trace = debug_backtrace(); foreach ($trace as $data) { $function = isset($data["function"]) ? $data["function"] : "???"; if ($function == "__errorhandler") continue; # don't print error handler $file = isset($data["file"]) ? $data["file"] : "???"; $line = isset($data["line"]) ? $data["line"] : "??"; $args = isset($data["args"]) ? serialize($data["args"]) : ""; # XXX error_log("$file:$line: $function($args)\n"); } } print("<h1>Check log.</h1>"); set_error_handler("__errorHandler"); $parts = split("/",array()); # generate error here print("EOF."); ?> Expected result: ---------------- A warning message have been sent to server log and a full page should have been returned to a client. Actual result: -------------- PHP crashes at line marked with "XXX". The problem seems to be related to the fact that the error is generated with incorrect call to split(). ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=30798&edit=1