[Bug 2150695] Re: sudo-rs won't allow root in proot in Termux in Android

[Shem Pasamba]

So I debugged the old sudo and sudo-rs and saw that sudo-rs was not
doing the same as the code in the old sudo. It was not checking if the
euid != To root uid before checking for the no new priv flag. So here's
a debdiff to fix that. I've tested this fix in my machine and it works.

** Patch added: "changes.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/rust-sudo-rs/+bug/2150695/+attachment/5968409/+files/changes.debdiff

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Title:
  sudo-rs won't allow root in proot in Termux in Android

Status in rust-sudo-rs package in Ubuntu:
  Invalid

Bug description:
  Unable get root in Ubuntu using sudo-rs when running it in proot in
  Termux in Android due to the check of a flag in the kernel. That flag
  can't be changed in the kernel since I'm running Android.

  The output is:
  sudo: The "no new privileges" flag is set, which prevents sudo from running as root.
  sudo: If sudo is running in a container, you may need to adjust the container configuration to disable the flag.

  Fix:
  Login as root & purge sudo-rs:

  pd login --user root ubuntu
  apt purge sudo-rs
  apt install sudo

  Then one can login and use sudo normally as before:

  pd login --user shemgp ubuntu
  sudo apt update -y

  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: sudo-rs (not installed)
  Uname: Linux 6.17.0-PRoot-Distro aarch64
  ApportVersion: 2.34.0-0ubuntu2
  Architecture: arm64
  CasperMD5CheckResult: unknown
  Date: Thu Apr 30 11:29:20 2026
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   TERM=xterm-256color
  SourcePackage: rust-sudo-rs
  UpgradeStatus: Upgraded to resolute on 2026-04-23 (7 days ago)

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