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Bug #31987 phpinfo() crash PHP when --enable-zend-multibyte is enabled on Win-XP
Submitted: 2005-02-15 16:05 UTC Modified: 2005-02-21 19:35 UTC
From: hirokawa@php.net Assigned: fujimoto (profile)
Status: Closed Package: mbstring related
PHP Version: 5CVS-2005-02-15 (dev) OS: Windows XP PRo SP2
Private report: No CVE-ID: None
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 [2005-02-15 16:05 UTC] hirokawa@php.net 
Description:
------------
When ZEND_MULTIBYTE option is defined on Windows XP Pro SP2,
and PHP is compiled as Apache 2 module,
PHP 5.0.x break up by phpinfo().

Here is backtrace by VC6++ for PHP 5.0.4dev,

zif_phpinfo()
 -> php_print_info(-1 TSRMLS_CC);
   -> zend_html_puts(zend_version, 
           strlen(zend_verison TSRMLS_CC)
     -> (L66)
        LANG_SCNG(output_filter)(&filtered, 
           &filtered_len, s, len TSRMLS_CC)

     filtered = 0xcccccccc "";
     &filtered = 0x04fcf54c
     filtered_len = -858993460
     s = "Zend Engine v2.1.0-dev,..."
     len = 66


Reproduce code:
---------------
<?php
 phpinfo();
?>


Expected result:
----------------
php releated info.



Actual result:
--------------
PHP 5.0.4dev executed as Apache 2 module will crash.

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 [2005-02-19 09:01 UTC] hirokawa@php.net 
Here is a patch to solve this problem,
I don't know if it has any side-effect.

*** Zend/zend_language_scanner.l	13 Feb 2005 13:50:48 -0000	1.120
--- Zend/zend_language_scanner.l	19 Feb 2005 07:42:35 -0000
***************
*** 135,140 ****
--- 135,144 ----
  	SCNG(script_org_size) = 0;
  	SCNG(script_filtered) = NULL;
  	SCNG(script_filtered_size) = 0;
+ 	SCNG(input_filter) = NULL;
+ 	SCNG(output_filter) = NULL;
+ 	SCNG(script_encoding) = NULL;
+ 	SCNG(internal_encoding) = NULL;
  #endif /* ZEND_MULTIBYTE */
  }
 [2005-02-19 15:36 UTC] hirokawa@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
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