[Bug 1589015] [NEW] Printer bug adds code into /var/tmp endlessly

[Mark Preston]

Public bug reported:

Canon Maxify MB2320 printer (all-in-one) causes or systemd causes lines
to be added to /var/tmp/ continuously. By constant, I mean whenever the
printer, or scanner, or copier function. I reported a bug at the Canon
Printer Community Forum for it's writing massively large files (starting
cnij) and filling /var/tmp to the point where / was complaining of no
space remaining. As these two problems may be linked I'm posting a
little about the cnij files, too. Please bear with me.

http://community.usa.canon.com/t5/Office-Printers/Maxify-MB2320-and-
driver/td-p/165313

The next problem occurs after I start a weekly removal of those cnij
files. When the device (printer) was first installed there were but 3 or
4 files in /var/tmp, no including the cnij-s.

That has now grown to 70+ lines. I append a few here, as they are
somewhat similar. If you wish to see all 70, they are at
https://paste.ubuntu.com/16968056/

Representative sample:

mark at Lexington:/var/tmp$ ls
canon_sgmp2_setting.ini
kdecache-mark
mkinitramfs-FW_mgeshg
systemd-private-273505a4cf664ff0af6e81870ea6665a-colord.service-hk7T18
systemd-private-273505a4cf664ff0af6e81870ea6665a-rtkit-daemon.service-Lv8yQF
systemd-private-273505a4cf664ff0af6e81870ea6665a-systemd-timesyncd.service-Fizgv4
systemd-private-29b03f52b21d493abf1e8ea22b6b7adc-colord.service-WLN1p1
systemd-private-29b03f52b21d493abf1e8ea22b6b7adc-rtkit-daemon.service-ghG257
systemd-private-29b03f52b21d493abf1e8ea22b6b7adc-systemd-timesyncd.service-BuNOet

While trying to run Ubuntu's (badly named app) "Backup", I received the
following error message:


Backup Failed

Giving up after 5 attempts. Error: g-io-error-quark: Error opening file:
'/media/mark/80cb5313-35a0-432b-9250-4cc62d79a3c8/duplicity-
inc.20160528T201042Z.to.20160603T203335Z.vol2.diff tar.gpg': Read-only
file system (21)

I have asked for help at AskUbuntu and the Ubuntu Forums. At AskU I was
directed to report the bug here. Following the Launchpad reporting
guidelines:

Description:	Ubuntu 16.04 LTS
Release:	16.04

mark at Lexington:/var/tmp$ apt-cache policy backups
N: Unable to locate package backups

I expected the backup to run as it has for years and years.

Backup reports fail message.

I am not aware of whether this is a security bug. I have left that box
unchecked.

There has been no response at Ubuntu Forums as yet. If there is one I
will add the relevant information as it becomes available.

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: colord systemd

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https://bugs.launchpad.net/bugs/1589015

Title:
  Printer bug adds code into /var/tmp endlessly

Status in systemd package in Ubuntu:
  New

Bug description:
  Canon Maxify MB2320 printer (all-in-one) causes or systemd causes
  lines to be added to /var/tmp/ continuously. By constant, I mean
  whenever the printer, or scanner, or copier function. I reported a bug
  at the Canon Printer Community Forum for it's writing massively large
  files (starting cnij) and filling /var/tmp to the point where / was
  complaining of no space remaining. As these two problems may be linked
  I'm posting a little about the cnij files, too. Please bear with me.

  http://community.usa.canon.com/t5/Office-Printers/Maxify-MB2320-and-
  driver/td-p/165313

  The next problem occurs after I start a weekly removal of those cnij
  files. When the device (printer) was first installed there were but 3
  or 4 files in /var/tmp, no including the cnij-s.

  That has now grown to 70+ lines. I append a few here, as they are
  somewhat similar. If you wish to see all 70, they are at
  https://paste.ubuntu.com/16968056/

  Representative sample:

  mark at Lexington:/var/tmp$ ls
  canon_sgmp2_setting.ini
  kdecache-mark
  mkinitramfs-FW_mgeshg
  systemd-private-273505a4cf664ff0af6e81870ea6665a-colord.service-hk7T18
  systemd-private-273505a4cf664ff0af6e81870ea6665a-rtkit-daemon.service-Lv8yQF
  systemd-private-273505a4cf664ff0af6e81870ea6665a-systemd-timesyncd.service-Fizgv4
  systemd-private-29b03f52b21d493abf1e8ea22b6b7adc-colord.service-WLN1p1
  systemd-private-29b03f52b21d493abf1e8ea22b6b7adc-rtkit-daemon.service-ghG257
  systemd-private-29b03f52b21d493abf1e8ea22b6b7adc-systemd-timesyncd.service-BuNOet

  While trying to run Ubuntu's (badly named app) "Backup", I received
  the following error message:

  
  Backup Failed

  Giving up after 5 attempts. Error: g-io-error-quark: Error opening
  file: '/media/mark/80cb5313-35a0-432b-9250-4cc62d79a3c8/duplicity-
  inc.20160528T201042Z.to.20160603T203335Z.vol2.diff tar.gpg': Read-only
  file system (21)

  I have asked for help at AskUbuntu and the Ubuntu Forums. At AskU I
  was directed to report the bug here. Following the Launchpad reporting
  guidelines:

  Description:	Ubuntu 16.04 LTS
  Release:	16.04

  mark at Lexington:/var/tmp$ apt-cache policy backups
  N: Unable to locate package backups

  I expected the backup to run as it has for years and years.

  Backup reports fail message.

  I am not aware of whether this is a security bug. I have left that box
  unchecked.

  There has been no response at Ubuntu Forums as yet. If there is one I
  will add the relevant information as it becomes available.

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