Security update for Linux Kernel Live Patch 20 for SLE 12 SP1 (important)

This update for the Linux Kernel 3.12.74-60_64_57 fixes several issues.

The following security bugs were fixed:

• CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c
  in the Linux kernel was too late in checking whether an overwrite of an
  skb data structure may occur, which allowed local users to cause a
  denial of service (system crash) via crafted system calls (bsc#1038564,
  bsc#1042892).
• CVE-2017-8890: The inet_csk_clone_lock function in
  net/ipv4/inet_connection_sock.c in the Linux kernel allowed attackers to
  cause a denial of service (double free) or possibly have unspecified
  other impact by leveraging use of the accept system call (bsc#1038564).