Xenial update to 4.4.34 stable release

[Luis Henriques]

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The 4.4.34 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches from the 4.4.34 stable release shall be applied:

dctcp: avoid bogus doubling of cwnd after loss
net: clear sk_err_soft in sk_clone_lock()
net: mangle zero checksum in skb_checksum_help()
bgmac: stop clearing DMA receive control register right after it is set
ip6_tunnel: Clear IP6CB in ip6tunnel_xmit()
tcp: fix potential memory corruption
dccp: do not send reset to already closed sockets
dccp: fix out of bound access in dccp_v4_err()
ipv6: dccp: fix out of bound access in dccp_v6_err()
ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped
sctp: assign assoc_id earlier in __sctp_connect
fib_trie: Correct /proc/net/route off by one error
sock: fix sendmmsg for partial sendmsg
net: __skb_flow_dissect() must cap its return value
ipv4: use new_gw for redirect neigh lookup
tcp: take care of truncations done by sk_filter()
tty: Prevent ldisc drivers from re-using stale tty fields
sparc: Don't leak context bits into thread->fault_address
sparc: serial: sunhv: fix a double lock bug
sparc64 mm: Fix base TSB sizing when hugetlb pages are used
sparc: Handle negative offsets in arch_jump_label_transform
sparc64: Handle extremely large kernel TSB range flushes sanely.
sparc64: Fix illegal relative branches in hypervisor patched TLB code.
sparc64: Fix instruction count in comment for __hypervisor_flush_tlb_pending.
sparc64: Fix illegal relative branches in hypervisor patched TLB cross-call code.
sparc64: Handle extremely large kernel TLB range flushes more gracefully.
sparc64: Delete __ret_efault.
sparc64: Prepare to move to more saner user copy exception handling.
sparc64: Convert copy_in_user to accurate exception reporting.
sparc64: Convert GENcopy_{from,to}_user to accurate exception reporting.
sparc64: Convert U1copy_{from,to}_user to accurate exception reporting.
sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting.
sparc64: Convert NGcopy_{from,to}_user to accurate exception reporting.
sparc64: Convert NG2copy_{from,to}_user to accurate exception reporting.
sparc64: Convert U3copy_{from,to}_user to accurate exception reporting.
sparc64: Delete now unused user copy assembler helpers.
sparc64: Delete now unused user copy fixup functions.
Linux 4.4.34

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-57.78

---------------
linux (4.4.0-57.78) xenial; urgency=low

  * Release Tracking Bug
    - LP: #1648867

  * Miscellaneous Ubuntu changes
    - SAUCE: Do not build the xr-usb-serial driver for s390

linux (4.4.0-56.77) xenial; urgency=low

  * Release Tracking Bug
    - LP: #1648867

  * Release Tracking Bug
    - LP: #1648579

  * CONFIG_NR_CPUS=256 is too low (LP: #1579205)
    - [Config] Increase the NR_CPUS to 512 for amd64 to support systems with a
      large number of cores.

  * NVMe drives in Amazon AWS instance fail to initialize (LP: #1648449)
    - SAUCE: (no-up) NVMe: only setup MSIX once

linux (4.4.0-55.76) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1648503

  * NVMe driver accidentally reverted to use GSI instead of MSIX (LP: #1647887)
    - (fix) NVMe: restore code to always use MSI/MSI-x interrupts

linux (4.4.0-54.75) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1648017

  * Update hio driver to 2.1.0.28 (LP: #1646643)
    - SAUCE: hio: update to Huawei ES3000_V2 (2.1.0.28)

  * linux: Enable live patching for all supported architectures (LP: #1633577)
    - [Config] CONFIG_LIVEPATCH=y for s390x

  * Botched backport breaks level triggered EOIs in QEMU guests with --machine
    kernel_irqchip=split (LP: #1644394)
    - kvm/irqchip: kvm_arch_irq_routing_update renaming split

  * Xenial update to v4.4.35 stable release (LP: #1645453)
    - x86/cpu/AMD: Fix cpu_llc_id for AMD Fam17h systems
    - KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr
    - KVM: Disable irq while unregistering user notifier
    - fuse: fix fuse_write_end() if zero bytes were copied
    - mfd: intel-lpss: Do not put device in reset state on suspend
    - can: bcm: fix warning in bcm_connect/proc_register
    - i2c: mux: fix up dependencies
    - kbuild: add -fno-PIE
    - scripts/has-stack-protector: add -fno-PIE
    - x86/kexec: add -fno-PIE
    - kbuild: Steal gcc's pie from the very beginning
    - ext4: sanity check the block and cluster size at mount time
    - crypto: caam - do not register AES-XTS mode on LP units
    - drm/amdgpu: Attach exclusive fence to prime exported bo's. (v5)
    - clk: mmp: pxa910: fix return value check in pxa910_clk_init()
    - clk: mmp: pxa168: fix return value check in pxa168_clk_init()
    - clk: mmp: mmp2: fix return value check in mmp2_clk_init()
    - rtc: omap: Fix selecting external osc
    - iwlwifi: pcie: fix SPLC structure parsing
    - mfd: core: Fix device reference leak in mfd_clone_cell
    - uwb: fix device reference leaks
    - PM / sleep: fix device reference leak in test_suspend
    - PM / sleep: don't suspend parent when async child suspend_{noirq, late}
      fails
    - IB/mlx4: Check gid_index return value
    - IB/mlx4: Fix create CQ error flow
    - IB/mlx5: Use cache line size to select CQE stride
    - IB/mlx5: Fix fatal error dispatching
    - IB/core: Avoid unsigned int overflow in sg_alloc_table
    - IB/uverbs: Fix leak of XRC target QPs
    - IB/cm: Mark stale CM id's whenever the mad agent was unregistered
    - netfilter: nft_dynset: fix element timeou...