[Bug 2080518] Re: /usr/bin/w:11:print_host:print_from:showinfo:main

[Timo Aaltonen]

Hello errors.ubuntu.com, or anyone else affected,

Accepted procps into noble-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/procps/2:4.0.4-4ubuntu3.2 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-
noble to verification-done-noble. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-noble. 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: procps (Ubuntu Noble)
       Status: Triaged => Fix Committed

** Tags added: verification-needed verification-needed-noble

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https://bugs.launchpad.net/bugs/2080518

Title:
  /usr/bin/w:11:print_host:print_from:showinfo:main

Status in procps package in Ubuntu:
  Fix Released
Status in procps source package in Noble:
  Fix Committed

Bug description:
  [Impact]

  * Running `w -s` crashes. Segmentation fault. It only crashes when
  there are users in `w` output.

  [ Test Plan ]

  * Launch a noble vm. If run `w` doesn't show any user (for example the shell is launched by lxc exec), then run `login -f root` to populate a user in `w` output.
  * Install the version from -proposed, and run `w -hs`. It shouldn't crash.
  * Run other `w` options, like without `-s`, and combine `-s` with other options as well. They all shouldn't crash.

  [ Where problems could occur ]

  * The backported patch only affects the `w` utility in procps. The
  tests should cover most options of `w` utility. It may have
  regressions if we miss some tests for the options.

  [ Original description ]

  Running `w -hs` crashes.

  The Ubuntu Error Tracker has been receiving reports about a problem regarding procps.  This problem was most recently seen with package version 2:4.0.4-4ubuntu4, the problem page at https://errors.ubuntu.com/problem/373d37cffbad5aec5447c867001913ba8278a791 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

  917 crashes in the last month on Ubuntu 24.04 makes it #31 on
  https://errors.ubuntu.com/?release=Ubuntu%2024.04&period=month

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