Guest account is created/destroyed each time it is selected/deselected on the list

[Jean-Baptiste Lallement]

The Guest Account and its associated chroot (/tmp/guest-home-XXXXX) is created/destroyed each time it is selected/deselected on the list instead of being created on login.

A user can easily DOS a system from the login screen with up/down arrows.

TEST CASE:
1. With Unity Greeter enabled, press Down to select 'Guest Account'
  -> Switch to a console and verify that a directory named /tmp/guest-home.XXXXX exists
2. Switch back to lightdm
3. Quickly press Up/Down for a few seconds to switch between the Guest Account and another entry
  -> Switch to a console and count the number of ck-history process
$ pgrep ck-history| wc -l

The number increase really quickly to the point the system becomes unusable.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity-greeter 0.0.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-5.6-generic 3.0.0-rc7
Uname: Linux 3.0.0-5-generic i686
Architecture: i386
Date: Mon Jul 25 23:58:00 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110209)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity-greeter
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

Could you try if that's still an issue with the new version?

[Jean-Baptiste Lallement (jibel)]

Fixed with latest update. Thanks.