Xenial SRU - v4.4.56 stable update

[Tim Gardner]

http://bugs.launchpad.net/bugs/1675789

see attached
-- 
Tim Gardner tim.gardner at canonical.com
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The following changes since commit f4788481fcc21a004ccb2722538d9c824d1218af:

  scsi: lpfc: Add missing memory barrier (2017-03-23 16:25:07 -0700)

are available in the git repository at:

  git://kernel.ubuntu.com/rtg/ubuntu-xenial.git v4.4.y

for you to fetch changes up to 6226a5279e9c5abb7a8e0e1bd4fbb4c221469b88:

  Linux 4.4.56 (2017-03-24 08:17:49 -0600)

----------------------------------------------------------------
Alexander Potapenko (1):
      net: don't call strlen() on the user buffer in packet_bind_spkt()

Andrey Ryabinin (1):
      x86/kasan: Fix boot with KASAN=y and PROFILE_ANNOTATED_BRANCHES=y

Andy Lutomirski (1):
      x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm

Arnaldo Carvalho de Melo (1):
      dccp: Unlock sock before calling sk_free()

David Ahern (2):
      vrf: Fix use-after-free in vrf_xmit
      mpls: Send route delete notifications when router module is unloaded

David Forster (1):
      vti6: return GRE_KEY for vti6

Dmitry V. Levin (1):
      uapi: fix linux/packet_diag.h userspace compilation error

Eric Biggers (2):
      fscrypt: fix renaming and linking special files
      fscrypto: lock inode while setting encryption policy

Eric Dumazet (5):
      net: net_enable_timestamp() can be called from irq contexts
      tcp: fix various issues for sockets morphing to listen state
      net: fix socket refcounting in skb_complete_wifi_ack()
      net: fix socket refcounting in skb_complete_tx_timestamp()
      dccp: fix use-after-free in dccp_feat_activate_values

Etienne Noss (1):
      act_connmark: avoid crashing on malformed nlattrs with null parms

Florian Westphal (3):
      netlink: remove mmapped netlink support
      ipv6: avoid write to a possibly cloned skb
      bridge: drop netfilter fake rtable unconditionally

Greg Kroah-Hartman (1):
      Linux 4.4.56

Hannes Frederic Sowa (1):
      dccp: fix memory leak during tear-down of unsuccessful connection request

Jon Maxwell (1):
      dccp/tcp: fix routing redirect race

Julian Anastasov (1):
      ipv4: mask tos for input route

Matthias Schiffer (1):
      vxlan: correctly validate VXLAN ID against VXLAN_N_VID

Paul Hüber (1):
      l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv

Peter Zijlstra (2):
      futex: Fix potential use-after-free in FUTEX_REQUEUE_PI
      futex: Add missing error handling to FUTEX_REQUEUE_PI

Roman Mashak (1):
      net sched actions: decrement module reference count after table flush.

Sabrina Dubroca (1):
      ipv6: make ECMP route replacement less greedy

Tim Gardner (1):
      UBUNTU: [Config] CONFIG_NETLINK_MMAP disappeared

 Documentation/networking/netlink_mmap.txt | 332 -------------
 Makefile                                  |   2 +-
 arch/x86/events/core.c                    |   4 +-
 arch/x86/kernel/head64.c                  |   1 +
 arch/x86/mm/kasan_init_64.c               |   1 +
 debian.master/config/config.common.ubuntu |   1 -
 drivers/net/vrf.c                         |   3 +-
 drivers/net/vxlan.c                       |   2 +-
 fs/ext4/crypto_policy.c                   |   6 +
 fs/ext4/ioctl.c                           |   4 +
 fs/f2fs/crypto_policy.c                   |   5 +
 fs/f2fs/file.c                            |   9 +-
 include/linux/dccp.h                      |   1 +
 include/uapi/linux/netlink.h              |   4 +
 include/uapi/linux/netlink_diag.h         |   2 +
 include/uapi/linux/packet_diag.h          |   2 +-
 kernel/futex.c                            |  22 +-
 net/bridge/br_input.c                     |   1 +
 net/bridge/br_netfilter_hooks.c           |  21 -
 net/core/dev.c                            |  35 +-
 net/core/skbuff.c                         |  30 +-
 net/dccp/ccids/ccid2.c                    |   1 +
 net/dccp/ipv4.c                           |   3 +-
 net/dccp/ipv6.c                           |   8 +-
 net/dccp/minisocks.c                      |  25 +-
 net/ipv4/route.c                          |   1 +
 net/ipv4/tcp_ipv4.c                       |  10 +-
 net/ipv4/tcp_timer.c                      |   6 +-
 net/ipv6/ip6_fib.c                        |   2 +
 net/ipv6/ip6_output.c                     |   7 +-
 net/ipv6/ip6_vti.c                        |   4 +
 net/ipv6/tcp_ipv6.c                       |   8 +-
 net/l2tp/l2tp_ip.c                        |   2 +-
 net/mpls/af_mpls.c                        |   1 +
 net/netlink/Kconfig                       |   9 -
 net/netlink/af_netlink.c                  | 751 +-----------------------------
 net/netlink/af_netlink.h                  |  15 -
 net/netlink/diag.c                        |  39 --
 net/packet/af_packet.c                    |   8 +-
 net/sched/act_api.c                       |   5 +-
 net/sched/act_connmark.c                  |   3 +
 41 files changed, 174 insertions(+), 1222 deletions(-)
 delete mode 100644 Documentation/networking/netlink_mmap.txt