From: xanthor at xanthor dot tk
Operating system: Linux, WindowsXP©
PHP version: 4.3.6
PHP Bug Type: PCRE related
Bug description: segmentation fault when using backreferences on a long string
Description:
------------
This line crash PHP with a segmentation fault.
It use a 3-chars-long back reference, on a 2236+3 chars-long string
If the back references is only 2 chars long, it's ok.
If the long string is less that 2236+3 chars, it's ok too...
Reproduce code:
---------------
preg_match("/(((?<!aaa).)*)(?<!aaa)aaa/",str_repeat(' ',2236).'aaa',$z);
Expected result:
----------------
No crash, and true return by the preg_match
Actual result:
--------------
segmentation fault
--
Edit bug report at http://bugs.php.net/?id=28461&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=28461&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=28461&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=28461&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=28461&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=28461&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=28461&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=28461&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=28461&r=support
Expected behavior: http://bugs.php.net/fix.php?id=28461&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=28461&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=28461&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=28461&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28461&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=28461&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=28461&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=28461&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=28461&r=float
