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Bug #38387 Calling set_error_handler from constructor segfaults apache
Submitted: 2006-08-08 20:37 UTC Modified: 2006-08-09 08:32 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:1 (100.0%)
From: trivoallan at clever-age dot com Assigned:
Status: Not a bug Package: Apache2 related
PHP Version: 5.1.4 OS: GNU/Linux (ubuntu dapper)
Private report: No CVE-ID: None
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 [2006-08-08 20:37 UTC] trivoallan at clever-age dot com 
Description:
------------
Apache version : 2.0.55

Calling set_error_handler from a class constructor makes apache crash.

Calling the function from other methods works without problems.

I've run accross #24708, and the problem does not come from there.

Reproduce code:
---------------
class cbJob
{
  public function __construct($id_ressource = null, $action_name = null)
  {
    set_error_handler(array($this, 'handleError'));
  }

  public function __destruct()
  {
    restore_error_handler();
  }
}

Expected result:
----------------
Error handler is cbJob::handleError()

Actual result:
--------------
[Tue Aug 08 22:09:49 2006] [notice] child pid 6876 exit signal Segmentation fault (11)

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 [2006-08-08 20:48 UTC] judas dot iscariote at gmail dot com 
what code your handleError method have ?

works perfectly fine in current 5_2 CVS... provide complete code please ;-)
 [2006-08-08 21:04 UTC] tony2001@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5.2-win32-latest.zip

Can't reproduce.
 [2006-08-08 21:52 UTC] trivoallan at clever-age dot com 
I found the source of the problem while reviewing the handleError method code (thanks for the pointer :).

There was a missing break in the switch statement.

Should it segfault anyway ?

Here's the uncorrected code for the handleError method : 

  function handleRuntimeError($errno, $errstr, $errfile = null, $errline = null, $errcontext = array() )
  {

    $error_types = array (
       E_ERROR              => 'Error',
       E_WARNING            => 'Warning',
       E_PARSE              => 'Parsing Error',
       E_NOTICE             => 'Notice',
       E_CORE_ERROR         => 'Core Error',
       E_CORE_WARNING       => 'Core Warning',
       E_COMPILE_ERROR      => 'Compile Error',
       E_COMPILE_WARNING    => 'Compile Warning',
       E_USER_ERROR         => 'User Error',
       E_USER_WARNING       => 'User Warning',
       E_USER_NOTICE        => 'User Notice',
       E_STRICT             => 'Runtime Notice',
       E_RECOVERABLE_ERRROR => 'Catchable Fatal Error'
    );

    $msg = sprintf('%s : "%s" occured in %s on line %d',
                   $error_types[$errno], $errstr, $errfile, $errline);

    switch($errno)
    {
      // A notice cannot fail the job
      case E_NOTICE:
        $this->setFailureMessage($msg);
      default:
        $this->errorOccured($msg, $this->getMaxTries());
    }
  }
 [2006-08-08 22:01 UTC] judas dot iscariote at gmail dot com 
again, need **complete** reproduce code ..

WTH the setFailureMessage() and errorOccured() methods do eh ?
 [2006-08-08 22:22 UTC] trivoallan at clever-age dot com 
bugs.php.net says : "Please do not SPAM our bug system."

so here's a link to the code : http://hashphp.org/pastebin.php?pid=8014
 [2006-08-09 07:52 UTC] mike@php.net 
Sorry, I didn't even look further require_once.
 [2006-08-09 08:32 UTC] tony2001@php.net 
1) Please try latest snapshot. http://snaps.php.net/php5.2-latest.tar.gz
2) After that, if you are still able to reproduce it, please provide a SHORT (max. 20 lines long) and COMPLETE (without any includes of non-existent files etc.) reproduce script.
Until then -> bogus.
 
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