** Also affects: linux (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Bionic)
       Status: New => Fix Committed

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  Bionic update to 4.15.8 stable release

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  SRU Justification

         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 4.15.8 upstream stable
         patch set is now available. It should be included in the Ubuntu
         kernel as well.



         The following patches from the 4.15.8 stable release shall be

  hrtimer: Ensure POSIX compliance (relative CLOCK_REALTIME hrtimers)
  ipmi_si: Fix error handling of platform device
  platform/x86: dell-laptop: Allocate buffer on heap rather than globally
  powerpc/pseries: Enable RAS hotplug events later
  Bluetooth: btusb: Use DMI matching for QCA reset_resume quirking
  ixgbe: fix crash in build_skb Rx code path
  tpm: st33zp24: fix potential buffer overruns caused by bit glitches on the bus
  tpm: fix potential buffer overruns caused by bit glitches on the bus
  tpm_i2c_infineon: fix potential buffer overruns caused by bit glitches on the 
  tpm_i2c_nuvoton: fix potential buffer overruns caused by bit glitches on the 
  tpm_tis: fix potential buffer overruns caused by bit glitches on the bus
  ALSA: usb-audio: Add a quirck for B&W PX headphones
  ALSA: control: Fix memory corruption risk in snd_ctl_elem_read
  ALSA: x86: Fix missing spinlock and mutex initializations
  ALSA: hda: Add a power_save blacklist
  ALSA: hda - Fix pincfg at resume on Lenovo T470 dock
  mmc: sdhci-pci: Fix S0i3 for Intel BYT-based controllers
  mmc: dw_mmc-k3: Fix out-of-bounds access through DT alias
  mmc: dw_mmc: Avoid accessing registers in runtime suspended state
  mmc: dw_mmc: Factor out dw_mci_init_slot_caps
  mmc: dw_mmc: Fix out-of-bounds access for slot's caps
  timers: Forward timer base before migrating timers
  parisc: Use cr16 interval timers unconditionally on qemu
  parisc: Reduce irq overhead when run in qemu
  parisc: Fix ordering of cache and TLB flushes
  parisc: Hide virtual kernel memory layout
  btrfs: use proper endianness accessors for super_copy
  block: fix the count of PGPGOUT for WRITE_SAME
  block: kyber: fix domain token leak during requeue
  block: pass inclusive 'lend' parameter to truncate_inode_pages_range
  vfio: disable filesystem-dax page pinning
  cpufreq: s3c24xx: Fix broken s3c_cpufreq_init()
  dax: fix vma_is_fsdax() helper
  direct-io: Fix sleep in atomic due to sync AIO
  x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend
  x86/platform/intel-mid: Handle Intel Edison reboot correctly
  x86/cpu_entry_area: Sync cpu_entry_area to initial_page_table
  bridge: check brport attr show in brport_show
  fib_semantics: Don't match route with mismatching tclassid
  hdlc_ppp: carrier detect ok, don't turn off negotiation
  ipv6 sit: work around bogus gcc-8 -Wrestrict warning
  net: amd-xgbe: fix comparison to bitshift when dealing with a mask
  net: ethernet: ti: cpsw: fix net watchdog timeout
  net: fix race on decreasing number of TX queues
  net: ipv4: don't allow setting net.ipv4.route.min_pmtu below 68
  netlink: ensure to loop over all netns in genlmsg_multicast_allns()
  net: sched: report if filter is too large to dump
  ppp: prevent unregistered channels from connecting to PPP units
  sctp: verify size of a new chunk in _sctp_make_chunk()
  udplite: fix partial checksum initialization
  net/mlx5e: Fix TCP checksum in LRO buffers
  sctp: fix dst refcnt leak in sctp_v4_get_dst
  mlxsw: spectrum_switchdev: Check success of FDB add operation
  net/mlx5e: Specify numa node when allocating drop rq
  net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT
  tcp: Honor the eor bit in tcp_mtu_probe
  rxrpc: Fix send in rxrpc_send_data_packet()
  tcp_bbr: better deal with suboptimal GSO
  doc: Change the min default value of tcp_wmem/tcp_rmem.
  net/mlx5e: Fix loopback self test when GRO is off
  net_sched: gen_estimator: fix broken estimators based on percpu stats
  net/sched: cls_u32: fix cls_u32 on filter replace
  sctp: do not pr_err for the duplicated node in transport rhlist
  mlxsw: spectrum_router: Fix error path in mlxsw_sp_vr_create
  net: ipv4: Set addr_type in hash_keys for forwarded case
  sctp: fix dst refcnt leak in sctp_v6_get_dst()
  bridge: Fix VLAN reference count problem
  net/mlx5e: Verify inline header size do not exceed SKB linear size
  tls: Use correct sk->sk_prot for IPV6
  amd-xgbe: Restore PCI interrupt enablement setting on resume
  cls_u32: fix use after free in u32_destroy_key()
  mlxsw: spectrum_router: Do not unconditionally clear route offload indication
  netlink: put module reference if dump start fails
  tcp: purge write queue upon RST
  tuntap: correctly add the missing XDP flush
  tuntap: disable preemption during XDP processing
  virtio-net: disable NAPI only when enabled during XDP set
  cxgb4: fix trailing zero in CIM LA dump
  net/mlx5: Fix error handling when adding flow rules
  net: phy: Restore phy_resume() locking assumption
  tcp: tracepoint: only call trace_tcp_send_reset with full socket
  l2tp: don't use inet_shutdown on tunnel destroy
  l2tp: don't use inet_shutdown on ppp session destroy
  l2tp: fix races with tunnel socket close
  l2tp: fix race in pppol2tp_release with session object destroy
  l2tp: fix tunnel lookup use-after-free race
  s390/qeth: fix underestimated count of buffer elements
  s390/qeth: fix SETIP command handling
  s390/qeth: fix overestimated count of buffer elements
  s390/qeth: fix IP removal on offline cards
  s390/qeth: fix double-free on IP add/remove race
  Revert "s390/qeth: fix using of ref counter for rxip addresses"
  s390/qeth: fix IP address lookup for L3 devices
  s390/qeth: fix IPA command submission race
  tcp: revert F-RTO middle-box workaround
  tcp: revert F-RTO extension to detect more spurious timeouts
  blk-mq: don't call io sched's .requeue_request when requeueing rq to 
  media: m88ds3103: don't call a non-initalized function
  EDAC, sb_edac: Fix out of bound writes during DIMM configuration on KNL
  KVM: s390: take care of clock-comparator sign control
  KVM: s390: provide only a single function for setting the tod (fix SCK)
  KVM: s390: consider epoch index on hotplugged CPUs
  KVM: s390: consider epoch index on TOD clock syncs
  nospec: Allow index argument to have const-qualified type
  x86/mm: Fix {pmd,pud}_{set,clear}_flags()
  ARM: orion: fix orion_ge00_switch_board_info initialization
  ARM: dts: rockchip: Remove 1.8 GHz operation point from phycore som
  ARM: mvebu: Fix broken PL310_ERRATA_753970 selects
  ARM: kvm: fix building with gcc-8
  KVM: X86: Fix SMRAM accessing even if VM is shutdown
  KVM: mmu: Fix overlap between public and private memslots
  KVM/x86: Remove indirect MSR op calls from SPEC_CTRL
  KVM: x86: move LAPIC initialization after VMCS creation
  KVM/VMX: Optimize vmx_vcpu_run() and svm_vcpu_run() by marking the RDMSR path 
as unlikely()
  KVM: x86: fix vcpu initialization with userspace lapic
  KVM/x86: remove WARN_ON() for when vm_munmap() fails
  ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530
  ARM: dts: LogicPD SOM-LV: Fix I2C1 pinmux
  ARM: dts: LogicPD Torpedo: Fix I2C1 pinmux
  powerpc/64s/radix: Boot-time NULL pointer protection using a guard-PID
  md: only allow remove_and_add_spares when no sync_thread running.
  platform/x86: dell-laptop: fix kbd_get_state's request value
  Linux 4.15.8

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