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IDProjectCategoryView StatusDate SubmittedLast Update
0000801XdebugUncategorizedpublic2012-03-20 11:462012-04-22 13:48
ReporterSjon Assigned To 
PrioritynormalSeveritycrashReproducibilityalways
Status closedResolutionfixed 
PlatformanyOSlinuxOS Version-
Product Version2.2dev 
Target Version2.2.0Fixed in Version2.2.0RC2 
Summary0000801: Segfault with streamwrapper, unclosed $fp and xdebug on destruction
Description

#0 0x00000000005abd12 in zend_hash_find ()
#1 0x00002aaaae139561 in xdebug_execute () from /usr/lib64/php/modules/xdebug.so
0000002 0x0000000000593c23 in zend_call_function ()
0000003 0x0000000000594070 in call_user_function_ex ()
0000004 0x0000000000567e5a in php_userstreamop_close ()
0000005 0x0000000000561e47 in _php_stream_free ()
0000006 0x00000000005620d1 in stream_resource_regular_dtor ()
0000007 0x00000000005ae10e in list_entry_destructor ()
0000008 0x00000000005ac104 in zend_hash_del_key_or_index ()
0000009 0x00000000005ae389 in _zend_list_delete ()
0000010 0x0000000000591f58 in _zval_ptr_dtor ()
0000011 0x00000000005ab4e8 in zend_hash_destroy ()
0000012 0x00000000005bcf19 in zend_object_std_dtor ()
0000013 0x00000000005bcf39 in zend_objects_free_object_storage ()
0000014 0x00000000005c0be5 in zend_objects_store_del_ref_by_handle_ex ()
0000015 0x00000000005c0c23 in zend_objects_store_del_ref ()
0000016 0x0000000000591f58 in _zval_ptr_dtor ()
0000017 0x00000000005ab4e8 in zend_hash_destroy ()
0000018 0x00000000005bcf19 in zend_object_std_dtor ()
0000019 0x00000000005bcf39 in zend_objects_free_object_storage ()
0000020 0x00000000005c0be5 in zend_objects_store_del_ref_by_handle_ex ()
0000021 0x00000000005c0c23 in zend_objects_store_del_ref ()
0000022 0x0000000000591f58 in _zval_ptr_dtor ()
0000023 0x00000000005ab793 in zend_hash_clean ()
0000024 0x0000000000595894 in zend_cleanup_class_data ()
0000025 0x00000000005ab3e5 in zend_hash_apply ()
0000026 0x00000000005921cd in shutdown_executor ()
0000027 0x000000000059ea02 in zend_deactivate ()
0000028 0x000000000054c58e in php_request_shutdown ()
0000029 0x00000000006279cf in main ()

doesn't happen without xdebug

Steps To Reproduce

<?php

class Handler
{
protected $_sp;

public function __construct()
{
    $this->_sp = fopen('wrap://lalal', 'a');
}

}

class Wrapper
{
protected $_fp;

public function stream_close()
{
    die('waa');
}

public function stream_open($path, $mode)
{
    $this->_fp = fopen('/tmp/asdf', $mode);

    return true;
}

}

stream_wrapper_register('wrap', 'Wrapper');

class Manager
{
public static $stuff;
}

Manager::$stuff = new stdClass();
Manager::$stuff->Logs = new Handler;

Additional Information

the 'die' is only to illustrate that stream_close isn't called. Reproducable on

PHP 5.3.10 with Suhosin-Patch (cli) (built: Feb 6 2012 19:18:12)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies
with Xdebug v2.2.0rc1, Copyright (c) 2002-2012, by Derick Rethans

and

PHP 5.3.10 (cli) (built: Feb 2 2012 23:38:14)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies
with Xdebug v2.1.4, Copyright (c) 2002-2012, by Derick Rethans
with Zend Guard Loader v3.3, Copyright (c) 1998-2010, by Zend Technologies

TagsNo tags attached.
Operating SystemArchlinux, CentOS
PHP Version5.3.10

Activities

derick

2012-03-24 00:06

administrator   ~0002002

Fixed, and thanks for your report with excellent reproduce case.

derick

2012-03-27 16:44

administrator   ~0002022

Still causes issues for PHP 5.1 and 5.2.

derick

2012-03-29 08:22

administrator   ~0002025

It crashes in PHP 5.1 and 5.2 even without Xdebug, so just ignoring those then.