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[Ural Tunaboyu <2111126@xxxxxxxxxxxxxxxxxx>]

** Also affects: util-linux (Ubuntu Questing)
   Importance: Low
     Assignee: Ural Tunaboyu (uralt)
       Status: In Progress

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https://bugs.launchpad.net/bugs/2111126

Title:
  TTY1 login prompt becomes unresponsive after arrow key and backspace
  input

Status in util-linux package in Ubuntu:
  In Progress
Status in util-linux source package in Noble:
  New
Status in util-linux source package in Oracular:
  New
Status in util-linux source package in Plucky:
  New
Status in util-linux source package in Questing:
  In Progress

Bug description:
  On Ubuntu Server 24.04.2 LTS, using the arrow key and backspace at the
  `tty1` login prompt breaks the prompt, preventing login.

  ## Steps to reproduce:
  1. Boot into Ubuntu Server (no GUI).
  2. Wait for the `tty1` login prompt.
  3. Press an arrow key (← or →).
  4. Press backspace to delete part of the line.
  5. Attempt to type a username and press Enter.

  ## Result:
  - The login prompt no longer accepts input or proceeds.
  - You cannot log in until the system is restarted.

  ## Expected behavior:
  - Arrow key and backspace input should be handled cleanly.
  - Login should still be possible.

  ## Notes:
  - This bug occurs on the text-based terminal (`tty1`) launched by `getty@tty1.service`, managed by systemd.
  - Kernel version: 6.8.0-60-generic
  - Affected version: Ubuntu Server 24.04.2 LTS

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