Bug #72458 [Opn->Csd]: Crash in call_user_function_ex when callback target object has a constant

From: Date: Wed, 22 Jun 2016 08:18:50 +0000
Subject: Bug #72458 [Opn->Csd]: Crash in call_user_function_ex when callback target object has a constant
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-201793@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=72458&edit=1

 ID:                 72458
 User updated by:    emilkm at gmail dot com
 Reported by:        emilkm at gmail dot com
 Summary:            Crash in call_user_function_ex when callback target
                     object has a constant
-Status:             Open
+Status:             Closed
 Type:               Bug
 Package:            Reproducible crash
 Operating System:   Windows
 PHP Version:        7.0.8RC1
 Block user comment: N
 Private report:     N

 New Comment:

Sincere apologies, I am pleased to say that was a false alarm. 

I was running the PHP script through NuSphere PHP DBG. Crash occurs only while debugging the PHP
script.


Previous Comments:
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[2016-06-22 04:56:39] emilkm at gmail dot com

Confirmed it works as expected on Linux. Tested on Fedora 23.

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[2016-06-21 00:37:42] oldbucsfan at hotmail dot com

Related to but 72359? https://bugs.php.net/bug.php?id=72359

------------------------------------------------------------------------
[2016-06-20 11:13:54] emilkm at gmail dot com

Description:
------------
I am working on upgrading a custom extension to PHP 7. 

I struck a problem while using call_user_function_ex to call a target object method
- when that object has a constant defined 
- and I pass parameters to the callback

The call completes successfully if I comment out the constant, or do not pass any parameters.

Tried in 7.0.6, 7.0.7, and 7.0.8RC1.

Crash occurs in zend_llist_apply_with_argument

Test script:
---------------
https://github.com/emilkm/aext

Expected result:
----------------
PHP code runs a custom extension function, the extension calls back the PHP method successfully
passing two parameters.

Actual result:
--------------
 	dbg-php-7.0.dll!00007ffbeb3c129f()	Unknown
 	dbg-php-7.0.dll!00007ffbeb3c15a5()	Unknown
 	dbg-php-7.0.dll!00007ffbeb3c1e2a()	Unknown
>	php7.dll!zend_llist_apply_with_argument(_zend_llist * l, void(*)(void *, void *) func, void *
>arg) Line 236	C
 	dbg-php-7.0.dll!00007ffbeb3c37a4()	Unknown
 	dbg-php-7.0.dll!00007ffbeb3bc07e()	Unknown
 	dbg-php-7.0.dll!00007ffbeb3b8f99()	Unknown
 	dbg-php-7.0.dll!00007ffbeb3b916e()	Unknown
 	php7.dll!zend_extension_statement_handler(const _zend_extension * extension, _zend_op_array *
op_array) Line 1491	C
 	php7.dll!zend_llist_apply_with_argument(_zend_llist * l, void(*)(void *, void *) func, void * arg)
Line 236	C
 	php7.dll!ZEND_EXT_STMT_SPEC_HANDLER(_zend_execute_data * execute_data) Line 1301	C
 	php7.dll!execute_ex(_zend_execute_data * ex) Line 417	C
 	dbg-php-7.0.dll!00007ffbeb3b6dce()	Unknown
 	php7.dll!ZEND_DO_FCALL_SPEC_HANDLER(_zend_execute_data * execute_data) Line 802	C
 	php7.dll!execute_ex(_zend_execute_data * ex) Line 417	C
 	dbg-php-7.0.dll!00007ffbeb3b6dce()	Unknown
 	php7.dll!zend_execute(_zend_op_array * op_array, _zval_struct * return_value) Line 459	C
 	php7.dll!zend_execute_scripts(int type, _zval_struct * retval, int file_count, ...) Line 1428	C
 	php7.dll!php_execute_script(_zend_file_handle * primary_file) Line 2494	C
 	php.exe!do_cli(int argc, char * * argv) Line 975	C
 	php.exe!main(int argc, char * * argv) Line 1344	C
 	php.exe!__scrt_common_main_seh() Line 264	C++
 	kernel32.dll!00007ffc091e8102()	Unknown
 	ntdll.dll!00007ffc09e5c5b4()	Unknown


------------------------------------------------------------------------



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