#45441 [NEW]: count_chars() crashs if both arguments are the same reference

From: victor dot stinner at haypocalc dot com Operating system: Linux (Ubuntu Gutsy) PHP version: 5.2CVS-2008-07-06 (snap) PHP Bug Type: Reproducible crash Bug description: count_chars() crashs if both arguments are the same reference Description: ------------ count_chars() function converts the second argument ($mode) using convert_to_long_ex(). If $input and $mode are both a reference to the same variable, PHP crashs with a segfault. Reproduce code: --------------- <?php $text = 'Hello World!'; $n = count_chars(&$text, &$text); print_r($n); ?> -- Edit bug report at http://bugs.php.net/?id=45441&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=45441&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=45441&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=45441&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=45441&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=45441&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=45441&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=45441&r=needscript Try newer version: http://bugs.php.net/fix.php?id=45441&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=45441&r=support Expected behavior: http://bugs.php.net/fix.php?id=45441&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=45441&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=45441&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=45441&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=45441&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=45441&r=dst IIS Stability: http://bugs.php.net/fix.php?id=45441&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=45441&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=45441&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=45441&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=45441&r=mysqlcfg