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Bug #46087 DOMXPath - segfault when trying to clone object
Submitted: 2008-09-15 19:19 UTC Modified: 2008-09-16 00:39 UTC
From: felipe@php.net Assigned:
Status: Closed Package: DOM XML related
PHP Version: 5.3CVS-2008-09-15 (CVS) OS:
Private report: No CVE-ID: None
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 [2008-09-15 19:19 UTC] felipe@php.net 
Description:
------------
See below.

Reproduce code:
---------------
<?php

$x = new domxpath(new domdocument); 
clone $x;


Actual result:
--------------
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1228761392 (LWP 12206)]
zend_hash_destroy (ht=0x0) at /home/felipe/dev/php5/Zend/zend_hash.c:521
521             p = ht->pListHead;
(gdb) bt
#0  zend_hash_destroy (ht=0x0) at /home/felipe/dev/php5/Zend/zend_hash.c:521
#1  0x080c5177 in dom_xpath_objects_free_storage (object=0x8a21400, tsrm_ls=0x8871070) at /home/felipe/dev/php5/ext/dom/php_dom.c:968
#2  0x083d6379 in zend_objects_store_del_ref_by_handle_ex (handle=2, handlers=0x8870540, tsrm_ls=0x8871070) at /home/felipe/dev/php5/Zend/zend_objects_API.c:215
#3  0x083d63d7 in zend_objects_store_del_ref (zobject=0x8a207ec, tsrm_ls=0x8871070) at /home/felipe/dev/php5/Zend/zend_objects_API.c:171
#4  0x083b39c9 in _zval_dtor_func (zvalue=0x8a207ec) at /home/felipe/dev/php5/Zend/zend_variables.c:52
#5  0x083a6b59 in _zval_ptr_dtor (zval_ptr=0x8a52d20) at /home/felipe/dev/php5/Zend/zend_variables.h:35
#6  0x083da01e in ZEND_CLONE_SPEC_CV_HANDLER (execute_data=0x8a52c40, tsrm_ls=0x8871070) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:22416
#7  0x083d9763 in execute (op_array=0x8a20bfc, tsrm_ls=0x8871070) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:104
#8  0x083a773d in zend_eval_string (str=0xbfdeaa51 "$x = new domxpath(new domdocument); clone $x;", retval_ptr=0x0, string_name=0x88510af "Command line code", tsrm_ls=0x8871070)
    at /home/felipe/dev/php5/Zend/zend_execute_API.c:1110
#9  0x083a78e7 in zend_eval_string_ex (str=0xbfdeaa51 "$x = new domxpath(new domdocument); clone $x;", retval_ptr=0x0, string_name=0x88510af "Command line code", handle_exceptions=1, tsrm_ls=0x8871070)

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 [2008-09-16 00:39 UTC] iliaa@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
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