From: sjungwirth at matrix-consultants dot com
Operating system: Linux 2.4.21
PHP version: 5.2.4
PHP Bug Type: Reproducible crash
Bug description: positive lookbehind causing seg fault with preg_match_all
Description:
------------
positive lookbehind is causing seg fault in preg_match_all, If i take out
the positive lookbehind, it doesn't crash.
Reproduce code:
---------------
<?php
echo "starting\n";
$subject = "enum('active','inactive','rockin\'')";
$pattern = "/'(([^']*((?<=\\\\)')?)*)'/";
preg_match_all($pattern,$subject ,$matches);
print_r($matches);
echo "done.";
Expected result:
----------------
starting
Array
(
[0] => Array
(
[0] => 'active'
[1] => 'inactive'
[2] => 'rockin\''
)
[1] => Array
(
[0] => active
[1] => inactive
[2] => rockin\'
)
[2] => Array
(
[0] =>
[1] =>
[2] =>
)
[3] => Array
(
[0] =>
[1] =>
[2] => '
)
)
done.
Actual result:
--------------
starting
Segmentation fault
--
Edit bug report at http://bugs.php.net/?id=43011&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=43011&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=43011&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=43011&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=43011&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=43011&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=43011&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=43011&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=43011&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=43011&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=43011&r=support
Expected behavior: http://bugs.php.net/fix.php?id=43011&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=43011&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=43011&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=43011&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43011&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=43011&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=43011&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=43011&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=43011&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=43011&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=43011&r=mysqlcfg
