linux-2.6 - security update

This update fixes the CVEs described below.

• CVE-2015-7566
  Ralf Spenneberg of OpenSource Security reported that the visor
  driver crashes when a specially crafted USB device without bulk-out
  endpoint is detected.
• CVE-2015-8767
  An SCTP denial-of-service was discovered which can be triggered by a
  local attacker during a heartbeat timeout event after the 4-way
  handshake.
• CVE-2015-8785
  It was discovered that local users permitted to write to a file on
  a FUSE filesystem could cause a denial of service (unkillable loop
  in the kernel).
• CVE-2016-0723
  A use-after-free vulnerability was discovered in the TIOCGETD ioctl.
  A local attacker could use this flaw for denial-of-service.
• CVE-2016-2069
  Andy Lutomirski discovered a race condition in flushing of the TLB
  when switching tasks. On an SMP system this could possibly lead to
  a crash, information leak or privilege escalation.

For the oldoldstable distribution (squeeze), these problems have been
fixed in version 2.6.32-48squeeze19. Additionally, this version
includes upstream stable update 2.6.32.70. This is the final update
to the linux-2.6 package for squeeze.

For the oldstable distribution (wheezy), these problems will be fixed
soon.

For the stable distribution (jessie), CVE-2015-7566, CVE-2015-8767 and
CVE-2016-0723 were fixed in linux version 3.16.7-ckt20-1+deb8u3 and
the remaining problems will be fixed soon.