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Bug #55425 closure with use of referenced array -> SEGV
Submitted: 2011-08-15 16:00 UTC Modified: 2011-08-18 07:11 UTC
From: ajrattink at correct dot net Assigned: laruence (profile)
Status: Closed Package: Reproducible crash
PHP Version: 5.3.6 OS: linux2.4.25
Private report: No CVE-ID: None
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 [2011-08-15 16:00 UTC] ajrattink at correct dot net 
Description:
------------
If you reference an array (with instances) and 'use' that array in a closure (without referencing it again) you get a segmentation fault

Using 'use (&$ar)' iso 'use ($ar)' fixes it. 

Test script:
---------------
http://www.correct.nl/bug_closure_b338f79f99c96c55fc879211ca2fe370.php.txt

Expected result:
----------------
exit 0, I guess

Actual result:
--------------
SEGV, gdb where -> 
#0  0x0827e6ff in zend_objects_store_del_ref_by_handle_ex ()
#1  0x0827e684 in zend_objects_store_del_ref ()
#2  0x082595a3 in _zval_dtor_func ()
#3  0x0824d238 in _zval_dtor ()
#4  0x0824d464 in _zval_ptr_dtor ()
#5  0x0826692a in _zend_hash_index_update_or_next_insert ()
#6  0x082677df in zend_hash_copy ()
#7  0x0825971f in _zval_copy_ctor_func ()
#8  0x0827f259 in _zval_copy_ctor ()
#9  0x08299456 in zend_send_by_var_helper_SPEC_VAR ()
#10 0x08299e34 in ZEND_SEND_VAR_SPEC_VAR_HANDLER ()
#11 0x08280901 in execute ()
#12 0x0825b513 in zend_execute_scripts ()
#13 0x0820088b in php_execute_script ()
#14 0x082ff885 in main ()

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 [2011-08-16 04:54 UTC] laruence@php.net
-Status: Open +Status: Feedback
 [2011-08-16 04:54 UTC] laruence@php.net 
Please try using this snapshot:

  http://snaps.php.net/php5.3-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/

Hi, I can reproduct this in php 5.3.6, and I have a quick look at php 5.3.7, seems 
there is no such issue in PHP 5.3.7, so plz try with php 5.3.7.
 [2011-08-16 12:43 UTC] ajrattink at correct dot net 
Tested with 5.3.7RC5, no more SEGV.
 [2011-08-18 07:11 UTC] laruence@php.net
-Status: Feedback +Status: Closed -Assigned To: +Assigned To: laruence
 [2011-08-18 07:11 UTC] laruence@php.net 
okey, well, I am going to close this report
 
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