Package: qbittorrent
Version: 3.3.7-3
Severity: critical
Justification: breaks unrelated software

qbittorrent seems to be writing some torrent data to /tmp, which ended up 
filling the filesystem, and causing severe system stability and data loss.   
The data loss and stability issues stem both from other programs being 
unable to write to /tmp, as well as causing anything else that lives on the 
same filesystem to be unable to operate properly.

On my system, /tmp lives on the root filesystem, but if /tmp had been using 
shmfs (as some people do), the whole system could have become unusable from 
filling memory.

I found some links that suggests that it is actually an issue in libtorrent,
but I'm filing the bug against qbittorrent since I'm unsure of the 
relationship of libtorrent-rasterbar9 (which is what qbittorrent is using) 
vs the standard libtorrent 0.16.13 which they claim fixes the issue.

https://github.com/qbittorrent/qBittorrent/issues/994
https://qbforums.shiki.hu/index.php?topic=2221.0

-- System Information:
Debian Release: 9.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968), LANGUAGE= 
(charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages qbittorrent depends on:
ii  geoip-database         20170512-1
ii  libboost-system1.62.0  1.62.0+dfsg-4
ii  libc6                  2.24-11+deb9u1
ii  libgcc1                1:6.3.0-18
ii  libqt5core5a           5.7.1+dfsg-3+b1
ii  libqt5dbus5            5.7.1+dfsg-3+b1
ii  libqt5gui5             5.7.1+dfsg-3+b1
ii  libqt5network5         5.7.1+dfsg-3+b1
ii  libqt5widgets5         5.7.1+dfsg-3+b1
ii  libqt5xml5             5.7.1+dfsg-3+b1
ii  libstdc++6             6.3.0-18
ii  libtorrent-rasterbar9  1.1.1-1+b1
ii  python                 2.7.13-2
ii  zlib1g                 1:1.2.8.dfsg-5

qbittorrent recommends no packages.

Versions of packages qbittorrent suggests:
pn  qbittorrent-dbg  <none>

-- no debconf information

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