kern/47748: Invalid file on ffs

[frederic%fauberteau.org@localhost]

>Number:         47748
>Category:       kern
>Synopsis:       Invalid file on ffs
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Apr 18 07:45:01 +0000 2013
>Originator:     Frédéric Fauberteau
>Release:        netbsd-6
>Organization:
>Environment:
NetBSD trashware 6.0_STABLE NetBSD 6.0_STABLE (TRASHWARE) #0: Fri Feb  8 
09:00:00 CET 2013  root@trashware:/usr/obj/sys/arch/amd64/compile/TRASHWARE 
amd64
>Description:
An invalid file is in the directory tree and can not be removed.

The report of daily insecurity script is:
Checking setuid files and devices:
Setuid/device find errors:
find: /usr/pkgsrc/ham/tfkiss/pkg/CVS/K+: No such file or directory
find: fts_read: No such file or directory

When I use autocomplete to try to remove the file, I obtain:
root@trashware:~$ rm /usr/pkgsrc/ham/tfkiss/pkg/CVS/K+^F
rm: /usr/pkgsrc/ham/tfkiss/pkg/CVS/K+: No such file or directory

root@trashware:pkg$ rm -rf /usr/pkgsrc/ham/tfkiss/pkg/CVS/
rm: CVS: Directory not empty
>How-To-Repeat:
No repeatable...

The file has probably been created by a failed ^C during a cvs update. The 'F' 
key is very closed to the 'C' key, but I don't know the exact combination.
>Fix: