Security update for the Linux Kernel (important)

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

Security issue fixed:

• CVE-2016-4997: A buffer overflow in 32bit compat_setsockopt iptables
  handling could lead to a local privilege escalation. (bsc#986362)

The following non-security bugs were fixed:

• KVM: x86: expose invariant tsc cpuid bit (v2) (bsc#971770).
• block: do not check request size in blk_cloned_rq_check_limits()
  (bsc#972124).
• rbd: handle OBJ_REQUEST_SG types for copyup (bsc#983394).
• target/rbd: do not put snap_context twice (bsc#981143).
• target/rbd: remove caw_mutex usage (bsc#981143).