#42976 [Com]: ReflectionClass::newInstance[Args]() crashes if ctor takes arg by reference
| From: | felipensp at gmail dot com | Date: | Mon, 15 Oct 2007 18:04:00 +0000 |
| Subject: | #42976 [Com]: ReflectionClass::newInstance[Args]() crashes if ctor takes arg by reference | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-118564@lists.php.net to get a copy of this message | ||
ID: 42976
Comment by: felipensp at gmail dot com
Reported By: robin_fernandes at uk dot ibm dot com
Status: Open
Bug Type: Reproducible crash
Operating System: Windows
PHP Version: 5CVS-2007-10-15 (snap)
New Comment:
GDB:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1211603264 (LWP 6092)]
0x0826a03c in _zval_ptr_dtor (zval_ptr=0xbfae34c8)
at /home/felipe/php5.2-200710131830/Zend/zend_execute_API.c:412
412 (*zval_ptr)->refcount--;
---------------------
Backtrace:
#0 0x0826a03c in _zval_ptr_dtor (zval_ptr=0xbfae34c8)
at /home/felipe/php5.2-200710131830/Zend/zend_execute_API.c:412
#1 0x08156d72 in zim_reflection_class_newInstance (ht=1,
return_value=0x847ef88, return_value_ptr=0x0, this_ptr=0x847eee0,
return_value_used=0)
at
/home/felipe/php5.2-200710131830/ext/reflection/php_reflection.c:3452
#2 0x08294748 in zend_do_fcall_common_helper_SPEC
(execute_data=0xbfae375c)
at /home/felipe/php5.2-200710131830/Zend/zend_vm_execute.h:200
#3 0x082937b9 in execute (op_array=0x847e540)
at /home/felipe/php5.2-200710131830/Zend/zend_vm_execute.h:92
#4 0x082761f2 in zend_execute_scripts (type=8, retval=<value optimized
out>,
file_count=3) at /home/felipe/php5.2-200710131830/Zend/zend.c:1134
#5 0x08235251 in php_execute_script (primary_file=0xbfae5b1c)
at /home/felipe/php5.2-200710131830/main/main.c:2003
#6 0x082eecf5 in main (argc=2, argv=0xbfae5c34)
at /home/felipe/php5.2-200710131830/sapi/cli/php_cli.c:1140
Previous Comments:
------------------------------------------------------------------------
[2007-10-15 17:13:11] robin_fernandes at uk dot ibm dot com
Description:
------------
In some cases, ReflectionClass::newInstance() and
ReflectionClass::newInstanceArgs() can trigger a segmentation fault when
the constructor of the reflected class takes arguments by reference.
Tested on PHP 5.2.5-dev (cli) (built: Oct 15 2007 12:04:27) on Win XP.
Reproduce code:
---------------
<?php
Class C {
function __construct(&$x) {
$x = "x.changed";
}
}
$x = "x.original";
new C($x); // OK
var_dump($x);
$rc = new ReflectionClass('C');
$x = "x.original";
$rc->newInstance($x); // causes crash
var_dump($x);
$x = "x.original";
$rc->newInstanceArgs(array($x)); // causes crash
var_dump($x);
?>
Expected result:
----------------
string(9) "x.changed"
string(9) "x.changed"
string(10) "x.original"
Actual result:
--------------
string(9) "x.changed"
*CRASH*
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=42976&edit=1