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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1259570

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1259570

Title:
  kexec should get a disabling sysctl

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  To enable kexec makes sense for a generic distro kernel. But if your
  users have root in their virtual machines, and you want to make it
  hard for them to run code in ring 0, you commonly disable further
  module loading and you also want to disable kexec[1]. Kees Cook wrote
  up a patch[2] that we'd like to see applied to the Ubuntu kernel to
  avoid recompilation of the distro kernel.

  I'm marking this as a security issue on the ground that it's quite
  surprising that setting kernel.modules_disabled=1 as a hardening
  feature can be subverted by using kexec.

  [1] http://mjg59.dreamwidth.org/28746.html
  [2] https://lkml.org/lkml/2013/12/9/765

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