[Bug 1668641] Re: Error message: pam_systemd(su:session): Cannot create session: Already running in a session

[dundir]

I'm receiving this error on 18.04.2 LTS. Will the fix for this will be
backported for the LTS releases?

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Title:
  Error message: pam_systemd(su:session): Cannot create session: Already
  running in a session

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd package in Debian:
  Fix Released

Bug description:
  Hi,

  here is how to reproduce this error:

  1. log in to the root account with ssh
  2. run "su - some_user_account"

  Here is what I see in the logs:

  Feb 28 15:21:45 xeelee su[9843]: Successful su for bonnaudl by root
  Feb 28 15:21:45 xeelee su[9843]: + /dev/pts/10 root:bonnaudl
  Feb 28 15:21:45 xeelee su[9843]: pam_unix(su:session): session opened for user bonnaudl by root(uid=0)
  Feb 28 15:21:45 xeelee su[9843]: pam_systemd(su:session): Cannot create session: Already running in a session
  Feb 28 15:21:48 xeelee su[9843]: pam_unix(su:session): session closed for user bonnaudl

  In another usage scenario of "su -" there is no error message and the
  creation of a new session:

  févr. 28 15:08:15 vougeot su[18962]: Successful su for bonnaudl by root
  févr. 28 15:08:15 vougeot su[18962]: + /dev/pts/0 root:bonnaudl
  févr. 28 15:08:15 vougeot su[18962]: pam_unix(su:session): session opened for user bonnaudl by bonnaudl(uid=0)
  févr. 28 15:08:15 vougeot systemd-logind[1162]: New session c9 of user bonnaudl.
  févr. 28 15:08:15 vougeot systemd[1]: Started Session c9 of user bonnaudl.
  févr. 28 15:08:17 vougeot su[18962]: pam_unix(su:session): session closed for user bonnaudl
  févr. 28 15:08:17 vougeot systemd-logind[1162]: Removed session c9.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: libpam-systemd 231-9ubuntu3
  Uname: Linux 4.10.1-041001-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8.2
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Tue Feb 28 15:21:09 2017
  EcryptfsInUse: Yes
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)

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