ID: 26696
Updated by: iliaa@php.net
Reported By: saruman at northernhacking dot org
-Status: Verified
+Status: Critical
Bug Type: Zend Engine 2 problem
Operating System: *
PHP Version: 5CVS-2004-01-02
New Comment:
Previous Comments:
------------------------------------------------------------------------
[2004-01-02 10:43:39] sniper@php.net
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 20298)]
0x08357f99 in zend_pzval_unlock_func (z=0x1) at
/usr/src/web/php/php5/Zend/zend_execute.c:64
64 z->refcount--;
(gdb) bt
#0 0x08357f99 in zend_pzval_unlock_func (z=0x1) at
/usr/src/web/php/php5/Zend/zend_execute.c:64
#1 0x08358499 in zend_switch_free (opline=0x40e491f8, Ts=0xbfffd640)
at /usr/src/web/php/php5/Zend/zend_execute.c:198
#2 0x083545d6 in zend_switch_free_handler (execute_data=0xbfffd7a0,
op_array=0x40e48704)
at /usr/src/web/php/php5/Zend/zend_execute.c:3072
#3 0x0834efd8 in execute (op_array=0x40e48704) at
/usr/src/web/php/php5/Zend/zend_execute.c:1260
#4 0x0832d924 in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /usr/src/web/php/php5/Zend/zend.c:1050
#5 0x082eac2c in php_execute_script (primary_file=0xbffffba0) at
/usr/src/web/php/php5/main/main.c:1642
#6 0x08367237 in main (argc=2, argv=0xbffffc34) at
/usr/src/web/php/php5/sapi/cli/php_cli.c:924
------------------------------------------------------------------------
[2003-12-22 17:22:03] saruman at northernhacking dot org
This bug is very similar to #26281, in fact, it's probably the same.
------------------------------------------------------------------------
[2003-12-22 17:00:20] moriyoshi@php.net
Maybe related to bug #17997
------------------------------------------------------------------------
[2003-12-22 14:51:55] saruman at northernhacking dot org
case '?': is the culprit.
------------------------------------------------------------------------
[2003-12-22 14:33:53] saruman at northernhacking dot org
Description:
------------
The ONLY change I'd done is install php-5.0.0b3 with the same config as
the php-5.0.0b2 it replaced.
Config vars:
Configure Command './configure' '--with-pear' '--with-pgsql'
'--with-apxs=/usr/local/apache/bin/apxs' '--enable-mbstring'
'--prefix=/usr/local/php5' '--with-libxml-dir=/usr'
Using this with php-5.0.0b2 works as expected. This behavior of a
string is required by DB.php in PEAR, amongst others.
Reproduce code:
---------------
<?php
//$str = Array('a', 's', 'd', 'd', '/',
'?');
$str = 'asdd/?';
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
switch ($str[$i]) {
case '?':
echo '?';
break;
}
}
?>
Did not crash.
Expected result:
----------------
?Did not crash.
Actual result:
--------------
From error_log:
[Mon Dec 22 14:15:38 2003] [notice] child pid 30170 exit signal
Segmentation fault (11)
[Mon Dec 22 14:15:38 2003] [notice] child pid 30187 exit signal
Segmentation fault (11)
The two response are because MSIE seems to do a second query when the
first one unexpectedly close.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=26696&edit=1