Bug #70562 [NEW]: preg_replace segmentation fault - string length

From: malcolm at memiah dot co dot uk Operating system: CentOS Linux release 7.0.1406 (C PHP version: 5.6.13 Package: PCRE related Bug Type: Bug Bug description:preg_replace segmentation fault - string length Description: ------------ Running preg_replace on a string length over 8435 causes a segmentation fault. Running default php.ini config. Please see attached script to reproduce. This happens on the CLI as well as through an apache handler. Test script: --------------- <?php $pattern = '/(.)*/'; $limit = 9000; $string = 'a'; for ( $i = 0; $i <= $limit; $i++ ) { $string .= 'a'; echo strlen($string) . "\n"; echo mb_strlen($string); preg_replace($pattern, '', $string); } echo 'done'; exit; -- Edit bug report at https://bugs.php.net/bug.php?id=70562&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70562&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70562&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70562&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70562&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70562&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70562&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70562&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70562&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70562&r=support Expected behavior: https://bugs.php.net/fix.php?id=70562&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70562&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70562&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70562&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70562&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70562&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70562&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70562&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70562&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70562&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70562&r=mysqlcfg