ID: 26696
Updated by: [EMAIL PROTECTED]
-Summary: Using string index in a switch() crashes
Reported By: saruman at northernhacking dot org
Status: Critical
Bug Type: Zend Engine 2 problem
Operating System: *
PHP Version: 5CVS-2004-01-02
New Comment:
Confirmed in recent cvs. It only happens with a default: block before
which there is an applicable case ending in a break; statement.
<?php
$line = '*';
switch ($line{0}) { // crashes also with $line[0]
case '*';
echo '* RAN!';
ob_flush();
break;
default:
echo 'Default RAN!';
ob_flush();
}
?>
This results in '* RAN!Segmentation Fault'. :(
BTW, I discovered this bug because it breaks Wakka.
Previous Comments:
------------------------------------------------------------------------
[2004-01-07 21:36:22] [EMAIL PROTECTED]
See also bug #26801
------------------------------------------------------------------------
[2004-01-02 10:43:39] [EMAIL PROTECTED]
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] [EMAIL PROTECTED]
Maybe related to bug #17997
------------------------------------------------------------------------
[2003-12-22 14:51:55] saruman at northernhacking dot org
case '?': is the culprit.
------------------------------------------------------------------------
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the rest of the comments, please view the bug report online at
http://bugs.php.net/26696
--
Edit this bug report at http://bugs.php.net/?id=26696&edit=1
