[Bug 2150073] Re: sudo-rs causes `apt-get install to enter `T+` when script stdout is piped and stdin is a TTY

[KJ LAU]

Awesome , this version of sudo-rs 0.2.14-1ubuntu2~26.04.1~ppa1 actually addressed the issue.
Millions Thx Simon for the effort 

Sorry for my ignorance, what is the process to to update  this sudo-rs
to 0.2.14? Have this SRU this issue? if yes, what is the expectation? it
will be available in next HWE version of u26.04 and make available  for
stable version ubuntu beyond 26.10?

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Title:
  sudo-rs causes `apt-get install to enter `T+` when script stdout is
  piped and stdin is a TTY

Status in rust-sudo-rs package in Ubuntu:
  In Progress

Bug description:
  On Ubuntu 26.04 (where /usr/bin/sudo is implemented via sudo-rs), running apt-get upgrade or install under sudo from a non‑interactive SSH + Expect‑driven environment causes the apt-get process to enter a T+ (stopped) state due to do_signal_stop(), causing the installation to hang indefinitely.
  This problem does not reproduce when replacing sudo-rs with classic sudo (sudo.ws) under identical conditions.

  High level flow:

  Host OS (launcher):
    Ubuntu 22.04 LTS

  Guest OS (QEMU VM):
    Ubuntu 26.04 (daily / pre‑release)

  user at localhost:~$ sudo --version
  sudo-rs 0.2.13-0ubuntu1

  sudo implementation:
    - Failing: sudo-rs (default sudo in Ubuntu 26.04)
    - Working: classic sudo (sudo.ws)

  Invocation context:
    SSH non‑interactive session
    Command chain driven via shell script + Expect
    No human‑attached TTY inside the guest

  Guest OS debug information:

  sudo ps -eo pid,ppid,stat,wchan:32,cmd | egrep 'apt|dpkg|ldconfig' | grep -v grep
     8809    7947 T+   do_signal_stop                   apt-get upgrade -y

  pstree -ap output:

    ├─sshd,3270
    │   ├─sshd-session,3757
    │   │   └─sshd-session,3793
    │   │       └─bash,3799
    │   │           ├─sudo,3960 ./installer.sh ASL default
    │   │           │   └─sudo,3964 ./installer.sh ASL default
    │   │           │       └─installer.sh,3966 /home/user/installer.sh ASL default
    │   │           │           ├─installer.sh,7947 /home/user/installer.sh ASL default
    │   │           │           │   └─apt-get,8809 upgrade -y
    │   │           │           └─tee,7948 -a /home/user/cbkc_output.log
    │   │           └─tee,3961 installer_logs.txt

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