[Pkg-shadow-devel] Bug#892098: Bug#892098: passwd: useradd in Jessie creates user with empty string as shell)

[Bálint Réczey]

Control: fixed -1 1:4.5-1.1

Hi Martin,

Martin Steigerwald <martin.steigerwald at proact.de> ezt írta (időpont:
2018. márc. 26., H, 10:12):
>
> reopen 892098
> thanks
>
> Hello Bálint,
>
> Debian Bug Tracking System - 23.03.18, 14:09:
> > > Package: passwd
> > > Version: 1:4.4-4.1
> > > Severity: normal
> […]
> > > useradd in Jessie creates user with empty string as shell:
> > >
> > > % useradd -m emptyshell
> > > % getent passwd | grep emptyshell
> > > emptyshell:x:4001:4002::/home/emptyshell:
> > >
> > > % useradd -D
> > > GROUP=100
> > > HOME=/home
> > > INACTIVE=-1
> > > EXPIRE=
> > > SHELL=/bin/bash
> > > SKEL=/etc/skel
> > > CREATE_MAIL_SPOOL=no
> > >
> > > useradd from passwd 1:4.5-1 in Debian Sid works correctly.
> >
> > Just like the one in Jessie.
>
> Nope. At least not on my Debian Stretch systems including templates with
> minimal installation and customization.
>
> > > passwd suggests no packages.
> > >
> > > -- Configuration Files:
> > > /etc/default/useradd [Errno 13] Keine Berechtigung: '/etc/default/useradd'
> >
> > /etc/default/useradd is missing, it would set SHELL for adduser.
>
> No, its not. "Keine Berechtigung" means "permission denied". Which is due to
> me running reportbug as a user, not as root and /etc/default/useradd being
> restricted to root:
>
> root at debiantest:~# LANG=C ls -l /etc/default/useradd
> -rw------- 1 root root 1195 Mar 26 10:00 /etc/default/useradd
>
>
> I just tried again on a minimal template:
>
> root at debiantest:~# useradd -m test
> root at debiantest:~# getent passwd | grep test
> test:x:1001:1001::/home/test:
>
> root at debiantest:~# grep -v "^#" /etc/default/useradd
> SHELL=/bin/sh
>
> From your other mail:
> > I mean for useradd, but using adduser is recommended anyway.
>
> Sure is, still, useradd is supposed to work as well and also its the
> distribution agnostic way to add users.


Thanks, I could reproduce the issue in stretch in LXC but not in buster in LXC:

root at stretch:~# useradd -m test
root at stretch:~# getent passwd | grep test
test:x:1001:1001::/home/test:

root at buster:~# useradd -m test
root at buster:~# getent passwd | grep test
test:x:1000:1000::/home/test:/bin/sh

Cheers,
Balint