[Bug 1892825] Re: update-locale not perform correctly sanity checks

[Steve Langasek]

Hello bs, or anyone else affected,

Accepted glibc into focal-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/glibc/2.31-0ubuntu9.4
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: glibc (Ubuntu Focal)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-focal

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https://bugs.launchpad.net/bugs/1892825

Title:
  update-locale not perform correctly sanity checks

Status in glibc package in Ubuntu:
  In Progress
Status in pam package in Ubuntu:
  New
Status in glibc source package in Bionic:
  New
Status in pam source package in Bionic:
  New
Status in glibc source package in Focal:
  Fix Committed
Status in pam source package in Focal:
  New
Status in glibc source package in Hirsute:
  New
Status in pam source package in Hirsute:
  New
Status in glibc source package in Impish:
  New
Status in pam source package in Impish:
  New

Bug description:
  [impact]
  A simple typo using the update-locale script can render a system inoperable without booting into single user mode or similar:

  $ sudo update-locale LANGUAGE = en_US.UTF-8
  $ sudo -s
  sudo: pam_open_session: Bad item passed to pam_*_item()
  sudo: policy plugin failed session initialization

  [test case]
  $ cp /etc/default/locale /tmp/locale
  $ update-locale --locale-file /tmp/locale LANGUAGE = en_US.UTF-8

  
  "diff -u /etc/default/locale /tmp/locale" should be empty.

  [original description]
  By passing wrong input as following:
   sudo update-locale LANGUAGE = en_US.UTF-8
  result is:
  ...
  #LANGUAGE=en
  =

  This "equal" sign that was added makes system completely
  unusable(can't run sudo anymore):

  bentzy at bentzy-nb:~$ sudo vim /etc/default/locale
  sudo: pam_open_session: Bad item passed to pam_*_item()
  sudo: policy plugin failed session initialization

  Fixed it booting from installation disk and fixing corrupted
  /etc/default/locale

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: locales 2.31-0ubuntu9
  Uname: Linux 5.5.4-050504-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.6
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: KDE
  Date: Tue Aug 25 09:36:03 2020
  InstallationDate: Installed on 2020-08-17 (7 days ago)
  InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  PackageArchitecture: all
  SourcePackage: glibc
  UpgradeStatus: No upgrade log present (probably fresh install)

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