Bug#764472: cups creates millions of temporary files when printing

[Antonio Sartori <anton.sartori@gmail.com>]

Package: cups
Version: 1.7.5-4
Severity: critical
Justification: breaks unrelated software

Dear Maintainer,

When trying to print (tried twice from evince, not tested from other software), cups creates millions of symbolic links in /tmp to the ppd driver in /etc/cups/ppd. The names of the symbolic links are similar to 54351da228fae.

This causes the system to hang on the next reboot while systemd tries to empty the tmp folder, making the system unbootable.

Notice that deleting the files by hand is tricky, since they are too many (rm does not work, it is not even possible to list the files with ls), I don't know how to do this. For now, I rebooted the system using a live dist and I typed mv /tmp /tmp2. This enables the system to boot again. Help on how I can delete the folder tmp2 would also be appreciated.


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages cups depends on:
ii  cups-client            1.7.5-4
ii  cups-common            1.7.5-4
ii  cups-core-drivers      1.7.5-4
ii  cups-daemon            1.7.5-4
ii  cups-filters           1.0.59-1
ii  cups-ppdc              1.7.5-4
ii  cups-server-common     1.7.5-4
ii  debconf [debconf-2.0]  1.5.53
ii  ghostscript            9.06~dfsg-1
ii  libavahi-client3       0.6.31-4
ii  libavahi-common3       0.6.31-4
ii  libc-bin               2.19-11
ii  libc6                  2.19-11
ii  libcups2               1.7.5-4
ii  libcupscgi1            1.7.5-4
ii  libcupsimage2          1.7.5-4
ii  libcupsmime1           1.7.5-4
ii  libcupsppdc1           1.7.5-4
ii  libgcc1                1:4.9.1-16
ii  libstdc++6             4.9.1-16
ii  libusb-1.0-0           2:1.0.19-1
ii  lsb-base               4.1+Debian13
ii  poppler-utils          0.26.5-1
ii  procps                 2:3.3.9-8

Versions of packages cups recommends:
ii  avahi-daemon                     0.6.31-4
ii  colord                           1.2.1-1+b1
ii  cups-filters [ghostscript-cups]  1.0.59-1
ii  printer-driver-gutenprint        5.2.10-3

Versions of packages cups suggests:
ii  cups-bsd                                   1.7.5-4
pn  cups-pdf                                   <none>
ii  foomatic-db-compressed-ppds [foomatic-db]  20140730-1
ii  hplip                                      3.14.6-1
ii  printer-driver-hpcups                      3.14.6-1
ii  smbclient                                  2:4.1.11+dfsg-2
ii  udev                                       215-5+b1

-- debconf information:
  cupsys/raw-print: true
  cupsys/backend: lpd, socket, usb, snmp, dnssd