[wp-trac] [WordPress Trac] #4962: Orphan attachment's "parent_post" seems to be undefined or overflowed

[WordPress Trac]

#4962: Orphan attachment's "parent_post" seems to be undefined or overflowed
---------------------+------------------------------------------------------
 Reporter:  ulfben   |       Owner:  anonymous                                                             
     Type:  defect   |      Status:  new                                                                   
 Priority:  normal   |   Milestone:  2.4 (next)                                                            
Component:  General  |     Version:  2.2.3                                                                 
 Severity:  normal   |    Keywords:  upload, attachment, parent_post, wp_posts, wp_upload_tab_upload_action
---------------------+------------------------------------------------------
 Orphan attachment's "parent_post" seems to be undefined or overflowed

 In `wp_posts` (the db table), parent_post defaults to NULL. An ordinary
 post has no parent, and it's `parent_post` is set to 0 appropriately. Thus
 an orphaned uploaded file (not attached to any post) should also be set to
 0, right?

 What I find is that they are all set to a value like -1189551062,
 -1189547712, -1189551992 and so on, wich looks suspiciously like an
 overflow of some kind.

 Looking at `wp_upload_tab_upload_action()` I notice that `$post_id` is
 never checked before constructing the attachment array. I don't know
 enough PHP/MySQL/WP to know if this might be the cause or not, but I need
 to know:

 Are these (huge) negative `post_parent` id's a desired behaviour?

-- 
Ticket URL: <http://trac.wordpress.org/ticket/4962>
WordPress Trac <http://trac.wordpress.org/>
WordPress blogging software