#41050 [NEW]: Segmentation fault using preg_match (any PCRE matching)

From: legolas558 at users dot sourceforge dot net Operating system: Windows XP SP2 PHP version: 4.4.6 PHP Bug Type: PCRE related Bug description: Segmentation fault using preg_match (any PCRE matching) Description: ------------ I have tested the below script with PHP 4.4.4.4 and there was no problem; now with PHP 4.4.6 there is a crash (probably a segmentation fault) and a server error (500) is returned. I could not provide a win32 backtrace however you can easily generate it using the testcase. Reproduce code: --------------- <?php // by legolas558 $regex = '/(insert|drop|create|select|delete|update)([^;\']*('."('[^']*')+".')?)*(;|$)/i'; $sql = 'SELECT * FROM #__components'; //$sql = ''; // does not cause error if (preg_match($regex,$sql, $m)) echo 'matched'; else echo 'not matched'; ?> Expected result: ---------------- matched Actual result: -------------- CGI Error The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are: -- Edit bug report at http://bugs.php.net/?id=41050&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=41050&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=41050&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=41050&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=41050&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=41050&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=41050&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=41050&r=needscript Try newer version: http://bugs.php.net/fix.php?id=41050&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=41050&r=support Expected behavior: http://bugs.php.net/fix.php?id=41050&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=41050&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=41050&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=41050&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41050&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=41050&r=dst IIS Stability: http://bugs.php.net/fix.php?id=41050&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=41050&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=41050&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=41050&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=41050&r=mysqlcfg