[GIT PULL] Keys fixes

[James Morris]

Please pull these fixes from David Howells:


 (1) Fix a buffer overflow when displaying /proc/keys [CVE-2016-7042].

 (2) Fix broken initialisation in the big_key implementation that can
     result in an oops.

 (3) Make big_key depend on having a random number generator available in
     Kconfig.

---

The following changes since commit 9fe68cad6e74967b88d0c6aeca7d9cd6b6e91942:

  Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 (2016-10-24 21:34:13 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git for-linus

Artem Savkov (1):
      security/keys: make BIG_KEYS dependent on stdrng.

David Howells (2):
      KEYS: Fix short sprintf buffer in /proc/keys show function
      KEYS: Sort out big_key initialisation

 security/keys/Kconfig   |    2 +-
 security/keys/big_key.c |   59 +++++++++++++++++++++++++---------------------
 security/keys/proc.c    |    2 +-
 3 files changed, 34 insertions(+), 29 deletions(-)