Bug#915950: dconf-service: /var/run/user/<UID>/dconf/user switches ownership to root:root

[Axel Stammler]

Package: dconf-service
Version: 0.26.0-2+b1
Severity: important

Dear Maintainer,

I noticed some programs not working, hanging, or going into infinite loops eating up all
memory and swap space (e.g. Mate Panel or Mate Settings, cf. Bug#913996). Looking for the
cause, I found that my D Conf file (see subject line) was owned by the super user instead
of me with permissions not allowing anyone else access.

If I am quick enough, I can resolve this situation by using Sudo to reset ownership to
myself. Some programs immediately work again, others (like the Mate programs) need to be
killed (so that they are automatically restarted by Mate, in this case).

Sometimes the infinite loop (100% usage of one CPU) can be seen to start when I try to
open Mate's main menu.

-- System Information:
Debian Release: 9.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-0.bpo.1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8), LANGUAGE=en_IE:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages dconf-service depends on:
ii  libc6         2.24-11+deb9u3
ii  libdconf1     0.26.0-2+b1
ii  libglib2.0-0  2.50.3-2

Versions of packages dconf-service recommends:
ii  dconf-gsettings-backend  0.26.0-2+b1

dconf-service suggests no packages.

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