[Bug 1995294] Autopkgtest regression report (openssh/1:9.0p1-1ubuntu7.1)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted openssh (1:9.0p1-1ubuntu7.1) for kinetic have finished running.
The following regressions have been reported in tests triggered by the package:

dropbear/2022.82-4 (armhf)
gvfs/1.50.2-2 (amd64, arm64)
sbuild/0.83.1ubuntu1 (s390x, amd64, arm64, ppc64el)
piuparts/1.1.5 (s390x, amd64, arm64, ppc64el)
xen-tools/4.9.1-1 (arm64)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/kinetic/update_excuses.html#openssh

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1995294

Title:
  rmdir: failed to remove '/etc/systemd/system/ssh.socket.d': Directory
  not empty

Status in openssh package in Ubuntu:
  Triaged
Status in openssh source package in Kinetic:
  Fix Committed

Bug description:
  [Impact]

  If a user a has an existing drop-in config for ssh.socket in
  /etc/systemd/system/ssh.socket.d upgrades to kinetic, and openssh-
  server.postint determines it should *not* perform migration to socket-
  activated ssh, they will receive an error from dpkg:

  Errors were encountered while processing:
   openssh-server
  Exception during pm.DoInstall():  E:Sub-process /usr/bin/dpkg returned an error code (1)

  Could not install the upgrades

  The upgrade has aborted. Your system could be in an unusable state. A 
  recovery will run now (dpkg --configure -a). 

  Please report this bug in a browser at 
  http://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+filebug 
  and attach the files in /var/log/dist-upgrade/ to the bug report. 
  E:Sub-process /usr/bin/dpkg returned an error code (1) 

  Setting up openssh-server (1:9.0p1-1ubuntu7) ...
  rmdir: failed to remove '/etc/systemd/system/ssh.socket.d': Directory not empty
  dpkg: error processing package openssh-server (--configure):
   installed openssh-server package post-installation script subprocess returned error exit status 1
  Errors were encountered while processing:
   openssh-server

  [Test Plan]

  * On a Jammy machine, install openssh-server if necessary. Edit
  /etc/ssh/sshd_config to contain the following:

  $ cat /etc/ssh/sshd_config
  [... defaults everywhere else ...]

  #Port 22
  #AddressFamily any
  ListenAddress 0.0.0.0
  ListenAddress ::

  [... defaults everywhere else ...]

  * Create a trivial drop-in override for ssh.socket:

  $ systemctl edit ssh.socket
  $ cat /etc/systemd/system/ssh.socket.d/override.conf 
  [Unit]
  Description=Testing

  * Now perform an upgrade to Kinetic, and observe the dpkg error.

  [Where problems could occur]
  The solution should be to use rmdir's --ignore-fail-on-empty flag. If the flag was mis-spelled, that would produce a new error.

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