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[2009-07-06 11:59 UTC] dennis at born05 dot nl
Description:
------------
When you subclass RecursiveDirectoryIterator and override the
constructor with enhanced functionality it makes PHP segfault.
I have tested this on 5.2.10 and 5.3.0, both display similar (but not
equal) behaviour, the output is somewhat different, but both versions
segfault.
Reproduce code:
---------------
<?php
class MyRDI extends RecursiveDirectoryIterator
{
public $base_path;
public function __construct($path, $flags = 0)
{
$this->base_path = $path;
parent::__construct($path, $flags);
}
}
$iterator = new RecursiveIteratorIterator(new MyRDI('/path/to/dir/hierarchy'));
foreach($iterator as $entry)
{
echo $entry->getFilename()."\n";
}
?>
Expected result:
----------------
See a list of all the filenames
Actual result:
--------------
PHP segfaults
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Last updated: Thu Jul 03 12:01:33 2025 UTC |
HEAD works fine. 5.2 and 5.3 segfaults: (gdb) bt #0 0x08412082 in _zval_ptr_dtor (zval_ptr=0xa37dc0f, __zend_filename=0x87bbafc "/home/felipe/dev/php5/Zend/zend_variables.c", __zend_lineno=175) at /home/felipe/dev/php5/Zend/zend.h:391 #1 0x08421c68 in _zval_ptr_dtor_wrapper (zval_ptr=0xa37dc10) at /home/felipe/dev/php5/Zend/zend_variables.c:175 #2 0x08434493 in zend_hash_destroy (ht=0xa37db58) at /home/felipe/dev/php5/Zend/zend_hash.c:526 #3 0x0844d749 in zend_object_std_dtor (object=0xa38460c, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/Zend/zend_objects.c:45 #4 0x0827ddff in spl_filesystem_object_free_storage (object=0xa38460c, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/ext/spl/spl_directory.c:81 #5 0x08453566 in zend_objects_store_del_ref_by_handle_ex (handle=5, handlers=0x87d0e40, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/Zend/zend_objects_API.c:220 #6 0x08453138 in zend_objects_store_del_ref (zobject=0xa37d78c, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/Zend/zend_objects_API.c:172 #7 0x0842185b in _zval_dtor_func (zvalue=0xa37d78c, __zend_filename=0x87ba958 "/home/felipe/dev/php5/Zend/zend_execute_API.c", __zend_lineno=435) at /home/felipe/dev/php5/Zend/zend_variables.c:52 ---Type <return> to continue, or q <return> to quit--- #8 0x08411d2c in _zval_dtor (zvalue=0xa37d78c, __zend_filename=0x87ba958 "/home/felipe/dev/php5/Zend/zend_execute_API.c", __zend_lineno=435) at /home/felipe/dev/php5/Zend/zend_variables.h:35 #9 0x08412111 in _zval_ptr_dtor (zval_ptr=0xa387cd0, __zend_filename=0x876bf7c "/home/felipe/dev/php5/ext/spl/spl_iterators.c", __zend_lineno=352) at /home/felipe/dev/php5/Zend/zend_execute_API.c:435 #10 0x0826e5d7 in spl_recursive_it_move_forward_ex (object=0xa37c814, zthis=0xa37bf40, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/ext/spl/spl_iterators.c:352 #11 0x0826e888 in spl_recursive_it_move_forward (iter=0xa37d5b4, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/ext/spl/spl_iterators.c:387 #12 0x0847bba4 in ZEND_FE_FETCH_SPEC_VAR_HANDLER (execute_data=0xa3ab6a4, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:8894 #13 0x0845647b in execute (op_array=0xa37f748, tsrm_ls=0xa22d070) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:104 #14 0x084252c2 in zend_execute_scripts (type=8, tsrm_ls=0xa22d070, retval=0x0, file_count=3) at /home/felipe/dev/php5/Zend/zend.c:1188