[Bug 1856703] Re: Return only PAM_IGNORE or error from pam_motd

[Balint Reczey]

Verified 1.3.1-5ubuntu1.19.10.1 on Eoan.

root at ee-proposed:~# login ubuntu
Password: 
Last login: Wed Feb  5 15:40:20 UTC 2020 on UNKNOWN
Welcome to Ubuntu 19.10 (GNU/Linux 5.3.0-29-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

  System information as of Wed Feb  5 15:41:25 UTC 2020

  System load:    0.56      Processes:           39
  Usage of /home: unknown   Users logged in:     0
  Memory usage:   1%        IP address for eth0: 10.84.73.86
  Swap usage:     28%


28 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable


*** System restart required ***

Permission denied
root at ee-proposed:~# dpkg -l libpam-modules
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                 Version                Architecture Description
+++-====================-======================-============-========================================
ii  libpam-modules:amd64 1.3.1-5ubuntu1.19.10.0 amd64        Pluggable Authentication Modules for PAM
root at ee-proposed:~# apt install -qqy libpam-modules=1.3.1-5ubuntu1.19.10.1 update-motd libpam-modules-bin=1.3.1-5ubuntu1.19.10.1
update-motd is already the newest version (3.6-0ubuntu1.19.10.1).
The following packages were automatically installed and are no longer required:
  command-not-found-data libdumbnet1 libidn11 libip4tc0 libip6tc0 multiarch-support
Use 'apt autoremove' to remove them.
The following packages will be upgraded:
  libpam-modules libpam-modules-bin
2 upgraded, 0 newly installed, 0 to remove and 29 not upgraded.
Need to get 288 kB of archives.
After this operation, 0 B of additional disk space will be used.
Preconfiguring packages ...
(Reading database ... 32593 files and directories currently installed.)
Preparing to unpack .../libpam-modules-bin_1.3.1-5ubuntu1.19.10.1_amd64.deb ...
Unpacking libpam-modules-bin (1.3.1-5ubuntu1.19.10.1) over (1.3.1-5ubuntu1.19.10.0) ...
Setting up libpam-modules-bin (1.3.1-5ubuntu1.19.10.1) ...
(Reading database ... 32593 files and directories currently installed.)
Preparing to unpack .../libpam-modules_1.3.1-5ubuntu1.19.10.1_amd64.deb ...
Unpacking libpam-modules:amd64 (1.3.1-5ubuntu1.19.10.1) over (1.3.1-5ubuntu1.19.10.0) ...
Setting up libpam-modules:amd64 (1.3.1-5ubuntu1.19.10.1) ...
Processing triggers for man-db (2.8.7-3) ...
root at ee-proposed:~# login ubuntu
Password: 
Last login: Wed Feb  5 15:41:25 UTC 2020 on UNKNOWN
Welcome to Ubuntu 19.10 (GNU/Linux 5.3.0-29-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

  System information as of Wed Feb  5 15:42:22 UTC 2020

  System load:    0.43      Processes:           39
  Usage of /home: unknown   Users logged in:     0
  Memory usage:   1%        IP address for eth0: 10.84.73.86
  Swap usage:     29%


26 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable


*** System restart required ***
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

ubuntu at ee-proposed:~$ dpkg -l libpam-modules
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                 Version                Architecture Description
+++-====================-======================-============-========================================
ii  libpam-modules:amd64 1.3.1-5ubuntu1.19.10.1 amd64        Pluggable Authentication Modules for PAM
ubuntu at ee-proposed:~$ logout
root at ee-proposed:~# grep success=die /etc/pam.d/login 
session    [success=die ignore=ignore]   pam_motd.so motd=/run/motd.dynamic


** Tags removed: verification-needed verification-needed-eoan
** Tags added: verification-done verification-done-eoan

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https://bugs.launchpad.net/bugs/1856703

Title:
   Return only PAM_IGNORE or error from pam_motd

Status in pam package in Ubuntu:
  Fix Released
Status in pam source package in Eoan:
  Fix Committed

Bug description:
  
  https://github.com/linux-pam/linux-pam/pull/157

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