Ubuntu
bash package

-su: cannot set terminal process group (-1): Inappropriate ioctl for device

Bug #1323068 reported by Nicolas
24
This bug affects 5 people
Affects Status Importance Assigned to Milestone
bash (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

*Not* happening in Ubuntu 12.04.4 LTS

ubuntu-precise-daily-amd64-server-20140522 (ami-c446aeac)

ubuntu@ip-10-0-0-30:~$ sudo su -
root@ip-10-0-0-30:~# su - ubuntu -
ubuntu@ip-10-0-0-30:~$

Happening in Ubuntu 14.04 LTS

ubuntu-trusty-14.04-amd64-server-20140416.1 (ami-018c9568)

ubuntu@build:~$ sudo su -
root@build:~# su - ubuntu -
-su: cannot set terminal process group (-1): Inappropriate ioctl for device
-su: no job control in this shell
ubuntu@build:~$

*******
test with zsh (ubuntu:x:1000:1000:Ubuntu:/home/ubuntu:/bin/zsh)
build% sudo su -
root@build:~# su - ubuntu -
build%

Tags: bash
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in bash (Ubuntu):
status: New → Confirmed
Revision history for this message
Carl-Johan Sveningsson (cj-sveningsson) wrote :

Umm, confirmed on Ubuntu 14.04.1 LTS, recently updated from 12... what's this about and how can I fix it? Seems harmless so far though.

cj@rocksteady:~$ sudo su minecraft -
[sudo] password for cj:
no talloc stackframe at ../source3/param/loadparm.c:4864, leaking memory
bash: cannot set terminal process group (-1): Inappropriate ioctl for device
bash: no job control in this shell
minecraft@rocksteady:/mnt/data/home/cj$ script /dev/null
Script started, file is /dev/null
minecraft@rocksteady:/mnt/data/home/cj$ screen -dR

I realize I get some nutty memory leak before the other dude though. I'll investigate.

/CJ

Revision history for this message
Carl-Johan Sveningsson (cj-sveningsson) wrote :

Edit: that memory leak was due to https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1257186, which fixed (by removing libpam-smbpass) leaves the original ioctl error :-/

Revision history for this message
Gus Kyriakakis (gus-u) wrote :

This was working in Ubuntu 14.04 a few weeks ago. Did something change with bash recently, perhaps with the vulnerability that was announced? How can we fix this? I have a script that is broken now because of it.

Revision history for this message
Andrew Meyer (dmeyer-andrew) wrote :

Still an issue in 14.04. After enabling ldap-client su no longer works
andrew.meyer@icinga-master:~$ su scmeyer
Password:
bash: cannot set terminal process group (1338): Inappropriate ioctl for device
bash: no job control in this shell
andrew.meyer@icinga-master:~$

Revision history for this message
Andrew Meyer (dmeyer-andrew) wrote :

Disregard my comment, it was due to UID mismatching

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