From: pahan at hubbitus dot spb dot su Operating system: Linux PHP version: 5.3.0beta1 PHP Bug Type: PCRE related Bug description: Segmentation fault in preg_replace on many repitition of pattern
Description: ------------ On text, where search pattern repeated many times (>643 times by test) php segfaulted (Core dump you may download here: http://ru.bir.ru/_temp/php-pcre-bug/core.8729 ) on preg_replace. So, if we reduce length of test text ( http://ru.bir.ru/_temp/php-pcre-bug/pcre_bug.text ) on 1 line, or just limit repetition on 1 - it is worked. All Zend-modules was disabled. Reproduce code: --------------- <? $text = file_get_contents('pcre_bug.text'); echo preg_replace('/(@@ -[\d,]+ \+[\d,]+ @@\s){2,}/s', '-some data-', $text); //Segmentation fault $text = file(); # Interesting: #echo preg_replace('/(@@ -[\d,]+ \+[\d,]+ @@\s){2,642}/s', '-some data-', $text); //Work, but result it is not same as needed. #echo preg_replace('/(@@ -[\d,]+ \+[\d,]+ @@\s){2,643}/s', '-some data-', $text); //PHP Warning: preg_replace(): Compilation failed: regular expression is too large at offset 33 ?> Expected result: ---------------- Work as when text is less. Actual result: -------------- Segmentation fault -- Edit bug report at http://bugs.php.net/?id=47376&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=47376&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=47376&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=47376&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=47376&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=47376&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=47376&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=47376&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=47376&r=needscript Try newer version: http://bugs.php.net/fix.php?id=47376&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=47376&r=support Expected behavior: http://bugs.php.net/fix.php?id=47376&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=47376&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=47376&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=47376&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47376&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=47376&r=dst IIS Stability: http://bugs.php.net/fix.php?id=47376&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=47376&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=47376&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=47376&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=47376&r=mysqlcfg
