samba -- potential Denial of Service bug in smbd

The Samba Team reports:

Internally Samba’s file server daemon, smbd, implements
support for deferred file open calls in an attempt to serve
client requests that would otherwise fail due to a share mode
violation. When renaming a file under certain circumstances
it is possible that the request is never removed from the deferred
open queue. smbd will then become stuck is a loop trying to
service the open request.
This bug may allow an authenticated user to exhaust resources
such as memory and CPU on the server by opening multiple CIFS
sessions, each of which will normally spawn a new smbd process,
and sending each connection into an infinite loop.