Comment 13 for bug 563805

 setuid bit is set to /bin/mount and /sbin/mount.cifs:
sudo ls -la /bin/mount /sbin/mount.cifs
-rwsr-sr-x 1 root root 72188 2010-03-22 18:51 /bin/mount
-rwsr-sr-x 1 root root 30424 2010-04-09 17:29 /sbin/mount.cifs

but I got:
mount -t cifs //server/datenauf$ /mnt -o user,rw,user=bbr,dom=ivu-ag
mount: Nur „root“ kann dies tun

(that means: only root can do). The user I try to mount this share is the owner of /mnt. So for me the workaround is not working and for both files the setuid was already set!