Security update for the Linux Kernel (important)

The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

• CVE-2017-1000405: A bug in the THP CoW support could be used by local
  attackers to corrupt memory of other processes and cause them to crash
  (bnc#1069496).
• CVE-2017-16939: The XFRM dump policy implementation in
  net/xfrm/xfrm_user.c in the Linux kernel allowed local users to gain
  privileges or cause a denial of service (use-after-free) via a crafted
  SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY
  Netlink messages (bnc#1069702).

The following non-security bugs were fixed:

Fix a build issue on ppc64le systems (bsc#1070805)