Thread:Project talk:Support desk/Fatal error: Possible integer overflow in memory allocation

I upgraded from version 1.17.0 to 1.22.2 and now when I click on Special Pages I receive this error: Fatal error: Possible integer overflow in memory allocation (2147483648 * 4 + 0) in /var/www/wiki/includes/User.php on line 2312

I went and opened up user.php and line 2312 reads: if ($ignoreHidden && in_array( $oname, $wgHiddenPrefs ) ) { return self::getDefaultOption( $oname ); }