http://bugs.winehq.org/show_bug.cgi?id=34406
--- Comment #13 from Ken Thomases ken@codeweavers.com --- (In reply to comment #12)
In the table it shows that when Write permission is granted (column) then special "Read Permissions" are achieved (row).
"Read Permissions" doesn't mean permission to read the file contents. It means permission to read the permissions. That is, a program with Write access can query the file's permissions, too.