From: steve at webdrive dot co dot nz
Operating system: Debian Linux 3.1
PHP version: 4.4.5
PHP Bug Type: Session related
Bug description: Segmentation fault on session_register of undeclared variable
Description:
------------
The upgrade from PHP 4.4.4 to 4.4.5 caused a Segmentation Fault on a
client's osCommerce site. I've tracked the problem down to a
session_register function call on a undeclared variable.
Reproduce code:
---------------
<?php
session_start();
// Uncomment the following line to prevent the Segmentation Fault
//$myvar = 1;
session_register("myvar");
echo "Hello World";
?>
Expected result:
----------------
Hello World and no "Segmentation Fault" in Apache's error log:
[Sat Feb 17 21:14:16 2007] [notice] child pid 20549 exit signal
Segmentation fault (11)
Actual result:
--------------
0x080dbbc2 in php_add_session_var (name=0x850b75c "myvar", namelen=5)
at /usr/src/apache-php/build/php-4.4.5/ext/session/session.c:287
287 if ((Z_TYPE_PP(sym_global) == IS_ARRAY &&
Z_ARRVAL_PP(sym_global) == &EG(symbol_table)) || *sym_global ==
PS(http_session_vars)) {
--
Edit bug report at http://bugs.php.net/?id=40514&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=40514&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=40514&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=40514&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=40514&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=40514&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=40514&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=40514&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=40514&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=40514&r=support
Expected behavior: http://bugs.php.net/fix.php?id=40514&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=40514&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=40514&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=40514&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40514&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=40514&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=40514&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=40514&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=40514&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=40514&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=40514&r=mysqlcfg
