[Bug 1892825] Autopkgtest regression report (glibc/2.27-3ubuntu1.6)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted glibc (2.27-3ubuntu1.6) for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

docker.io/20.10.7-0ubuntu5~18.04.3 (i386, amd64, s390x, arm64, ppc64el)
sbd/1.3.1-2 (amd64)
chromium-browser/100.0.4896.127-0ubuntu0.18.04.1 (armhf)
pymol/1.8.4.0+dfsg-1build1 (s390x, ppc64el)
nvidia-graphics-drivers-390/390.147-0ubuntu0.18.04.1 (i386)
pgbouncer/1.8.1-1build1 (amd64)
r-cran-urltools/1.7.0-1ubuntu1 (arm64, ppc64el)
firefox/100.0+build2-0ubuntu0.18.04.1 (arm64)
python-llfuse/1.3.3+dfsg-3 (arm64)
c-icap/1:0.4.4-1 (ppc64el)
givaro/4.0.2-8ubuntu1 (armhf)
apport/2.20.9-0ubuntu7.27 (amd64)
threadweaver/5.44.0-0ubuntu1 (i386)
apt/1.6.14 (arm64)
containerd/1.5.5-0ubuntu3~18.04.2 (amd64, arm64)
glibc/2.27-3ubuntu1.6 (armhf)
cura-engine/1:3.1.0-2 (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/bionic/update_excuses.html#glibc

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

Thank you!

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

Title:
  update-locale not perform correctly sanity checks

Status in glibc package in Ubuntu:
  Fix Released
Status in pam package in Ubuntu:
  New
Status in glibc source package in Bionic:
  Fix Committed
Status in pam source package in Bionic:
  New
Status in glibc source package in Focal:
  Fix Released
Status in pam source package in Focal:
  New
Status in glibc source package in Hirsute:
  Won't Fix
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.

  $ update-locale --locale-file /tmp/locale LANGUAGE=en_US.UTF-8

  The LANGUAGE=en_US.UTF-8 line should have been replaced by
  LANGUAGE=en_GB.UTF-8.

  $ update-locale --locale-file /tmp/locale LANGUAGE

  The LANGUAGE setting is now commented out.

  [regression potential]
  Apart from the general concerns about a glibc rebuild, this is a simple change to a simple script. Performing the test as in the test case section is enough to ensure it still works.

  [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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