From: jeroen at derks dot it
Operating system: Linux 2.4.20 Debian 3.0
PHP version: 4.3.3
PHP Bug Type: Reproducible crash
Bug description: In error handler, modifying 5th arg (errcontext) may result in seg
fault
Description:
------------
Modifying 5th parameter of error handler will make PHP crash when leaving
the error handler.
NB: This seems to happen only when the error was generated in a function
(possibly also in a member function). Please see the code.
NB2: When changing function test()'s parameter name into $args, PHP
exitted normally.
Reproduce code:
---------------
function my_error_handler( $error, $errmsg = '', $errfile = '',
$errline = 0, $errcontext = '' )
{
$errcontext = '';
}
set_error_handler( 'my_error_handler' );
function test( $headers = '' )
{
echo "Undefined index here: '{$data['HTTP_HEADER']}'\n";
}
test();
Expected result:
----------------
Undefined index here: ''
Actual result:
--------------
Undefined index here: ''
Segmentation fault
--
Edit bug report at http://bugs.php.net/?id=25922&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=25922&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=25922&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=25922&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=25922&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=25922&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=25922&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=25922&r=support
Expected behavior: http://bugs.php.net/fix.php?id=25922&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=25922&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=25922&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=25922&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25922&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=25922&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=25922&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=25922&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=25922&r=float
