Bug #11806: Using $string = md5($string); crashed HTTP child processes

From: joe@nowalls.com Operating system: Linux 2.2.16 PHP version: 4.0.6 PHP Bug Type: Reproducible crash Bug description: Using $string = md5($string); crashed HTTP child processes PHP Options: './configure' '--with-mysql' '--with-gd' '--enable-track-vars' '--with-jpeg-dir=/usr/local/lib' '--enable-bcmath' '--with-apache=../apache_1.3.20' '--enable-ftp' '--enable-sockets' '--with-mcrypt' The problem I am having is: When using the code: $cipher = md5($cipher); httpd crashes the current child process with: [Fri Jun 29 10:54:49 2001] [notice] child pid 9766 exit signal Segmentation fault (11) [Fri Jun 29 10:54:50 2001] [notice] child pid 9920 exit signal Segmentation fault (11) The page then fails to load, returning nothing to the browser. Also, I have another function called CleanSring($string); which looks like: function CleanString($string) { $string = strip_tags($string); $string = preg_replace("/<\/?(html|head|meta|title|body|font|img|.jpg|.gif|.vbs|script|tr|table|text).*>/","",$string); $string = preg_replace("/<\/?(HTML|HEAD|META|TITLE|BODY|FONT|IMG|.JPG|.GIF|.VBS|SCRIPT|TR|TABLE|TEXT).*>/","",$string); $string = preg_replace("/<[^>]*>/","",$string); return $string; } Calling this function like: $string = CleanString($string); causes the same problem. Whats weird is I call md5() again below the problem code: $now = date("r"); $thisID = md5(substr(makeID(), 0, 16)); $onetimepass = substr(md5($thisID), 0, 8); And neither of these causes the same problem, even when being used in the same document. -- Edit Bug report at: http://bugs.php.net/?id=11806&edit=1