Bug #54317 [NEW]: Regexp crashes Apache/PHP

From: Operating system: Windows PHP version: 5.3.6 Package: Regexps related Bug Type: Bug Bug description:Regexp crashes Apache/PHP Description: ------------ --- From manual page: http://www.php.net/function.preg-replace#Description --- Calling the script below apache crashes on windows installations. After removing almost any of the lines inside $notworking apache will NOT crash, no matter which line was removed in most cases. Here is the system list that causes a crash or not: Windows 7 SP1 (64bit) | XAMPP | Apache/2.2.17 (Win32) | PHP 5.3.5 | <<<<<<< CRASH! Windows XP (32+64bit) | XAMPP | Apache 2.2.17 | PHP 5.3.5 | <<<<<<< CRASH! WinXP 32Bit / Apache 2.2.17 / PHP 5.2.14 <<<<<<< CRASH! Fedora 32Bit / Apache 2.2.15 / PHP 5.3.3 --> OK Ubuntu 10.10 32Bit / Apache2 2.2.16 / PHP 5.3.3 -> OK Test script: --------------- <?php echo 'Is the following crashing apache or whatever?<br />'.PHP_EOL; // After removing almost any of the lines inside $notworking apache will NOT crash, no matter which line was removed in most cases. $notworking = '<?php //<*IslandStorageBase:start*> DO NOT CHANGE THIS COMMENT! /** * Automatically generated BaseObject for IslandStorage. !!DO NOT CHANGE THIS BASE-CLASS!! * CHANGES WILL BE OVERWRITTEN WHEN UPDATING!! * You can change class "IslandStorage" which will extend this base-class. */ class IslandStorageBase extends AbstractSimpleStorage { } <*IslandStorageBase:end*> ?>'; $content = preg_replace( '%//<\*IslandStorageBase:start\*>(.)+<\*IslandStorageBase:end\*>%s', 'test', $notworking ); echo 'If you can see this everything seems to be working fine.'; ?> Expected result: ---------------- Is the following crashing apache or whatever? If you can see this everything seems to be working fine. Actual result: -------------- Apache crashes with the following log entry: Parent: child process exited with status xyz -- Restarting. -- Edit bug report at http://bugs.php.net/bug.php?id=54317&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54317&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54317&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54317&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54317&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54317&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54317&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54317&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54317&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54317&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54317&r=support Expected behavior: http://bugs.php.net/fix.php?id=54317&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54317&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54317&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54317&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54317&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54317&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54317&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54317&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54317&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54317&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54317&r=mysqlcfg