[Bug 1522371] Re: iproute2: seg fault with 'ip link type gre ...' commands

[Nicolas Dichtel]

Done here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812102

** Bug watch added: Debian Bug tracker #812102
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812102

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https://bugs.launchpad.net/bugs/1522371

Title:
  iproute2: seg fault with 'ip link type gre ...' commands

Status in iproute2 package in Ubuntu:
  Triaged

Bug description:
  This upstream patch needs to be backported:
  bde5baa5476c gre: raising the size of the buffer holding nl messages.
  https://git.kernel.org/cgit/linux/kernel/git/shemminger/iproute2.git/commit/?id=bde5baa5476c

  Example:
  root at ubuntu1404:~# ip link add dummy1 type dummy
  root at ubuntu1404:~# ip a a 10.200.0.1/24 dev dummy1
  root at ubuntu1404:~# ip link add gre2 type gre local 10.200.0.1 remote 10.200.0.2 dev dummy1
  root at ubuntu1404:~# ip link set gre2 type gre ttl 32
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  addattr_l ERROR: message exceeded bound of 1024
  *** stack smashing detected ***: ip terminated
  Aborted
  root at ubuntu1404:~# uname -a
  Linux ubuntu1404 3.13.0-66-generic #108-Ubuntu SMP Wed Oct 7 15:20:27 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
  root at ubuntu1404:~# ip -V
  ip utility, iproute2-ss131122
  root at ubuntu1404:~#

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