[Pkg-utopia-maintainers] Bug#1054017: network-manager: cannot edit network connection from inside xephyr instance

[Josh Voorkamp]

Package: network-manager
Version: 1.42.4-1
Severity: normal

Hello,

So the set up is that I have a user I want to be able to
alter/bring-up/bring-down network connections. 

I have a main user `user` that can do it fine. I created a new user
`newuser` and added them to the `netdev` group.

If I login to the new account via `sudo -i -u newuser` I can alter the
existing connection fine.

However I'm also running xephyr for nested logins. To start the instance
I run the command `dm-tool add-nested-seat`. If I login as `newuser`,
open a terminal and run, say, `nmcli con down 'Wired connection 1` I'm
told: `Connection 'Wired connection 1' deactivation failed: Not
authorized to deactivate connections`. 

I'm not clear why this works in one case but not the other. I'd expect
it to work in both!

-- System Information:
Debian Release: 12.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.1.0-13-amd64 (SMP w/24 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_NZ.UTF-8, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8), LANGUAGE=en_NZ:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages network-manager depends on:
ii  adduser                         3.134
ii  dbus [default-dbus-system-bus]  1.14.10-1~deb12u1
ii  libaudit1                       1:3.0.9-1
ii  libbluetooth3                   5.66-1
ii  libc6                           2.36-9+deb12u3
ii  libcurl3-gnutls                 7.88.1-10+deb12u4
ii  libglib2.0-0                    2.74.6-2
ii  libgnutls30                     3.7.9-2
ii  libjansson4                     2.14-2
ii  libmm-glib0                     1.20.4-1
ii  libndp0                         1.8-1
ii  libnewt0.52                     0.52.23-1+b1
ii  libnm0                          1.42.4-1
ii  libpsl5                         0.21.2-1
ii  libreadline8                    8.2-1.3
ii  libselinux1                     3.4-1+b6
ii  libsystemd0                     252.17-1~deb12u1
ii  libteamdctl0                    1.31-1
ii  libudev1                        252.17-1~deb12u1
ii  policykit-1                     122-3
ii  polkitd                         122-3
ii  udev                            252.17-1~deb12u1

Versions of packages network-manager recommends:
ii  dnsmasq-base [dnsmasq-base]  2.89-1
ii  libpam-systemd               252.17-1~deb12u1
ii  modemmanager                 1.20.4-1
ii  ppp                          2.4.9-1+1.1+b1
ii  wireless-regdb               2022.06.06-1
ii  wpasupplicant                2:2.10-12

Versions of packages network-manager suggests:
pn  iptables       <none>
pn  libteam-utils  <none>

Versions of packages network-manager is related to:
ii  isc-dhcp-client  4.4.3-P1-2

-- no debconf information
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