Bug #52818 [NEW]: PCRE segfault

From: Operating system: Debian-50-lenny-64 PHP version: 5.3.3 Package: Reproducible crash Bug Type: Bug Bug description:PCRE segfault Description: ------------ My phpinfo: http://188.40.74.4/_phpinfo.php My hardware configuration: http://www.hetzner.de/en/hosting/produkte_rootserver/eq4/ Test condition: Run the script below in console (via SSH in my case). Result: Segmentation fault Note: the regular expression may look senseless, because it was shortened to the minimun length for reproducing the bug. Bug is reproducible on php 5.2.6, 5.2.9, 5.2.12 and 5.3.2. (Sorry, can't test on the latest version, waiting for someone to confirm the bug on 5.3.3). Sorry, can't make a backtrace on a production server, because it is necessary to recompile the php. In Windows this script works well. Test script: --------------- $str="<script>".str_repeat(".", 7000); //at least 6378 bytes (or more) $str=preg_replace("/<script>((?!qqqq).)*/", "", $str); Expected result: ---------------- Not a Segmentation fault :) Actual result: -------------- Debian-50-lenny-64-LAMP:/home/httpd# php -f segf.php Segmentation fault Debian-50-lenny-64-LAMP:/home/httpd# -- Edit bug report at http://bugs.php.net/bug.php?id=52818&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=52818&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=52818&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=52818&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=52818&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52818&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=52818&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=52818&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=52818&r=needscript Try newer version: http://bugs.php.net/fix.php?id=52818&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=52818&r=support Expected behavior: http://bugs.php.net/fix.php?id=52818&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=52818&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=52818&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=52818&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52818&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=52818&r=dst IIS Stability: http://bugs.php.net/fix.php?id=52818&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=52818&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=52818&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=52818&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=52818&r=mysqlcfg