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Bug#832155: New ssh-session-cleanup.service kills ssh user session during upgrade

Package: openssh-server
Version: 1:7.2p2-6
Severity: serious


the addition of ssh-session-cleanup.service in the latest upload [1] is
imho a bad idea. It's an aweful hack and besides, it also kills your SSH
sessions on upgrades (thus severity RC).

The proper fix is to use libpam-systemd. This will register a proper
session scope when users log in via SSH. Those session scopes are
ordered against systemd-user-sessions.service which itself has a proper
ordering against network.target. So those user session are stopped
before the network stack is shutdown.

Please drop ssh-session-cleanup.service again and simply add a
dependency on libpam-systemd. It's the correct solution for this


[1] https://anonscm.debian.org/cgit/pkg-ssh/openssh.git/commit/?id=b66f1de1c94

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (200, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages openssh-server depends on:
ii  adduser                3.115
ii  debconf [debconf-2.0]  1.5.59
ii  dpkg                   1.18.9
ii  init-system-helpers    1.39
ii  libaudit1              1:2.6.5-1
ii  libc6                  2.23-2
ii  libcomerr2             1.43.1-1
ii  libgssapi-krb5-2       1.14.2+dfsg-1
ii  libkrb5-3              1.14.2+dfsg-1
ii  libpam-modules         1.1.8-3.3
ii  libpam-runtime         1.1.8-3.3
ii  libpam0g               1.1.8-3.3
ii  libselinux1            2.5-3
ii  libssl1.0.2            1.0.2h-1
ii  libsystemd0            230-7
ii  libwrap0               7.6.q-25
ii  lsb-base               9.20160629
ii  openssh-client         1:7.2p2-6
ii  openssh-sftp-server    1:7.2p2-6
ii  procps                 2:3.3.12-2
ii  zlib1g                 1:1.2.8.dfsg-2+b1

Versions of packages openssh-server recommends:
ii  ncurses-term  6.0+20160625-1
ii  xauth         1:1.0.9-1

Versions of packages openssh-server suggests:
ii  ksshaskpass [ssh-askpass]  4:5.7.0-1
pn  molly-guard                <none>
pn  monkeysphere               <none>
pn  rssh                       <none>
ii  ssh-askpass                1:
pn  ufw                        <none>

-- debconf information excluded

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