[Bug 1336663] Re: lightdm uses wrong ccache name on pam_krb5 credentials refresh

[Robert Ancell]

This bug occurs when when using LightDM as a lockscreen and pam-krb5 not
correctly updating the credentials of the session you switch back to.

It's not clear if the problem is the way we are using PAM in LightDM
(i.e. insufficient/wrong information for pam-krb5 to do the right thing)
or an assumption by pam-krb5 that is not occurring.

** Also affects: libpam-krb5 (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1336663

Title:
  lightdm uses wrong ccache name on pam_krb5 credentials refresh

Status in Light Display Manager:
  Triaged
Status in “libpam-krb5” package in Ubuntu:
  New
Status in “lightdm” package in Ubuntu:
  Triaged

Bug description:
  As already noted by Brian Knoll in https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1296276/comments/24
  lightdm 1.10.1-0ubuntu1 uses an inappropriate credentials cache, /tmp/krb5cc_0, when refreshing Kerberos credentials on screen unlock.

  I couldn't find the new bug Robert Ancell called for in
  https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1296276/comments/27
  so I'm opening one now.

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