Bug #60264 [NEW]: stack/memory exhaustion

From: Operating system: linux PHP version: 5.4.0RC1 Package: *Regular Expressions Bug Type: Bug Bug description:stack/memory exhaustion Description: ------------ pcre allow to stack or heap memory exhaustion stack cx () cx64:/www$ cat crash0.php <?php preg_match("/((.*)((!?.*)+)\\w+)/iU",str_repeat(" ",4096),$exxx); ?> cx () cx64:/www$ php crash0.php Segmentation fault -- Edit bug report at https://bugs.php.net/bug.php?id=60264&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=60264&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=60264&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=60264&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=60264&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=60264&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=60264&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=60264&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=60264&r=needscript Try newer version: https://bugs.php.net/fix.php?id=60264&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=60264&r=support Expected behavior: https://bugs.php.net/fix.php?id=60264&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=60264&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=60264&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=60264&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=60264&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=60264&r=dst IIS Stability: https://bugs.php.net/fix.php?id=60264&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=60264&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=60264&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=60264&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=60264&r=mysqlcfg