Package: bash
Version: 5.2.15-2+b2
Severity: normal
Dear Maintainer,
* What led up to the situation?
A script that worked fine on Debian 11 caused terminal corruption on Debian 12.
* What exactly did you do (or not do) that was effective (or
ineffective)?
I was able to create a minimal test case to illustrate the problem.
* What was the outcome of this action?
The problem is that output loses carriage returns and echo is turned off for
the terminal on script exit.
* What outcome did you expect instead?
I expected no terminal device corruption. stty sane does fix the terminal
after the failure.
Here is a test case:
#!/bin/bash
for DIR in $(jot 5)
do { echo 1; sudo -u $USER -- echo test > /dev/null; echo 2; } |
cat &
done
wait
Running this on my system outputs the '2' with line feeds and no carriage
returns, and on exit, the terminal has echo turned off. stty sane fixes it.
-- System Information:
Debian Release: 12.1
APT prefers stable-debug
APT policy: (500, 'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.1.0-10-amd64 (SMP w/48 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages bash depends on:
ii base-files 12.4+deb12u1
ii debianutils 5.7-0.4
ii libc6 2.36-9+deb12u1
ii libtinfo6 6.4-4
Versions of packages bash recommends:
ii bash-completion 1:2.11-6
Versions of packages bash suggests:
pn bash-doc <none>
-- Configuration Files:
/etc/bash.bashrc changed:
[ -z "$PS1" ] && return
shopt -s checkwinsize
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
debian_chroot=$(cat /etc/debian_chroot)
fi
if ! [ -n "${SUDO_USER}" -a -n "${SUDO_PS1}" ]; then
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
if [ -x /usr/lib/command-not-found -o -x
/usr/share/command-not-found/command-not-found ]; then
function command_not_found_handle {
# check because c-n-f could've been removed in the meantime
if [ -x /usr/lib/command-not-found ]; then
/usr/lib/command-not-found -- "$1"
return $?
elif [ -x /usr/share/command-not-found/command-not-found ]; then
/usr/share/command-not-found/command-not-found -- "$1"
return $?
else
printf "%s: command not found\n" "$1" >&2
return 127
fi
}
fi
shopt -s histappend
-- no debconf information
