[Bug 2136942] Re: The visudo command fails to read files passed via stdin

[Launchpad Bug Tracker]

This bug was fixed in the package rust-sudo-rs - 0.2.12-0ubuntu1

---------------
rust-sudo-rs (0.2.12-0ubuntu1) resolute; urgency=medium

  * New upstream version (LP: #2141927)
  * Fixes:
    - Cockpit cannot escalate privileges with sudo-rs [--askpass unsupported]
      (LP: #2122048)
    - wrong /dev/pts owner for login shell (and $HOME) (LP: #2131153)
    - The visudo command fails to read files passed via stdin (LP: #2136942)
    - renable test `test_build_run_context` (LP: #2120544)
  * New patches:
    - enable-pwfeedback-by-default.patch: Cherry-pick enable pwfeedback by
      default, thanks Tim Hutt.
    - correct-backspace-for-multibyte-characters.patch: Cherry-pick correct
      backspace for multibyte characters, thanks Marc Schoolderman.
  * Changes:
    - d/control: Add python3:any as dependency for apport package hook.
    - d/sudo-rs.manpages: Sort entry order alphabetically.

 -- Simon Johnsson <simon.johnsson at canonical.com>  Mon, 16 Feb 2026
14:24:39 +0100

** Changed in: rust-sudo-rs (Ubuntu Resolute)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2136942

Title:
  The visudo command fails to read files passed via stdin

Status in rust-sudo-rs package in Ubuntu:
  Fix Released
Status in rust-sudo-rs source package in Questing:
  Triaged
Status in rust-sudo-rs source package in Resolute:
  Fix Released

Bug description:
  Expected output (as seen in 24.04, 25.04):

  $ cat /etc/sudoers | visudo -c -f -
  stdin: parsed OK
  /etc/sudoers.d/90-cloud-init-users: parsed OK
  /etc/sudoers.d/README: parsed OK

  Actual output (as seen in 25.10):

  $ cat /etc/sudoers | visudo -c -f -
  visudo: unable to open -: No such file or directory (os error 2)

  Ansible's community.general.sudoers module hits this bug because it
  relies on sudo being able to consume stdin to do validation.

  Bug is fixed upstream:

  https://github.com/trifectatechfoundation/sudo-rs/issues/1358

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