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

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

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  Xenial update: 4.4.164 upstream stable release

Status in linux package in Ubuntu:
Status in linux source package in Xenial:
  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 following upstream
         stable patches should be included in the Ubuntu kernel:

         4.4.164 upstream stable release
         from git://git.kernel.org/

  Linux 4.4.164
  drm/i915/hdmi: Add HDMI 2.0 audio clock recovery N values
  drm/dp_mst: Check if primary mstb is null
  drm/rockchip: Allow driver to be shutdown on reboot/kexec
  mm: migration: fix migration of huge PMD shared pages
  hugetlbfs: fix kernel BUG at fs/hugetlbfs/inode.c:444!
  configfs: replace strncpy with memcpy
  fuse: fix leaked notify reply
  rtc: hctosys: Add missing range error reporting
  sunrpc: correct the computation for page_ptr when truncating
  mount: Prevent MNT_DETACH from disconnecting locked mounts
  mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts
  mount: Retest MNT_LOCKED in do_umount
  ext4: fix buffer leak in __ext4_read_dirblock() on error path
  ext4: fix buffer leak in ext4_xattr_move_to_block() on error path
  ext4: release bs.bh before re-using in ext4_xattr_block_find()
  ext4: fix possible leak of sbi->s_group_desc_leak in error path
  ext4: avoid possible double brelse() in add_new_gdb() on error path
  ext4: fix missing cleanup if ext4_alloc_flex_bg_array() fails while resizing
  ext4: avoid buffer leak in ext4_orphan_add() after prior errors
  ext4: fix possible inode leak in the retry loop of ext4_resize_fs()
  ext4: avoid potential extra brelse in setup_new_flex_group_blocks()
  ext4: add missing brelse() add_new_gdb_meta_bg()'s error path
  ext4: add missing brelse() in set_flexbg_block_bitmap()'s error path
  ext4: add missing brelse() update_backups()'s error path
  clockevents/drivers/i8253: Add support for PIT shutdown quirk
  Btrfs: fix data corruption due to cloning of eof block
  arch/alpha, termios: implement BOTHER, IBSHIFT and termios2
  termios, tty/tty_baudrate.c: fix buffer overrun
  mtd: docg3: don't set conflicting BCH_CONST_PARAMS option
  mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings
  ocfs2: fix a misuse a of brelse after failing ocfs2_check_dir_entry
  vhost/scsi: truncate T10 PI iov_iter to prot_bytes
  mach64: fix image corruption due to reading accelerator registers
  mach64: fix display corruption on big endian machines
  libceph: bump CEPH_MSG_MAX_DATA_LEN
  clk: s2mps11: Fix matching when built as module and DT node contains 
  xtensa: fix boot parameters address translation
  xtensa: make sure bFLT stack is 16 byte aligned
  xtensa: add NOTES section to the linker script
  MIPS: Loongson-3: Fix BRIDGE irq delivery problem
  MIPS: Loongson-3: Fix CPU UART irq delivery problem
  bna: ethtool: Avoid reading past end of buffer
  e1000: fix race condition between e1000_down() and e1000_watchdog
  e1000: avoid null pointer dereference on invalid stat type
  mm: do not bug_on on incorrect length in __mm_populate()
  fs, elf: make sure to page align bss in load_elf_library
  mm: refuse wrapped vm_brk requests
  binfmt_elf: fix calculations for bss padding
  mm, elf: handle vm_brk error
  fuse: set FR_SENT while locked
  fuse: fix blocked_waitq wakeup
  fuse: Fix use-after-free in fuse_dev_do_write()
  fuse: Fix use-after-free in fuse_dev_do_read()
  scsi: qla2xxx: Fix incorrect port speed being set for FC adapters
  cdrom: fix improper type cast, which can leat to information leak.
  9p: clear dangling pointers in p9stat_free
  9p locks: fix glock.client_id leak in do_lock
  media: tvp5150: fix width alignment during set_selection()
  sc16is7xx: Fix for multi-channel stall
  powerpc/boot: Ensure _zimage_start is a weak symbol
  MIPS: kexec: Mark CPU offline before disabling local IRQ
  media: pci: cx23885: handle adding to list failure
  drm/omap: fix memory barrier bug in DMM driver
  powerpc/nohash: fix undefined behaviour when testing page size support
  tty: check name length in tty_find_polling_driver()
  MD: fix invalid stored role for a disk - try2
  btrfs: set max_extent_size properly
  Btrfs: fix null pointer dereference on compressed write path error
  btrfs: qgroup: Dirty all qgroups before rescan
  Btrfs: fix wrong dentries after fsync of file that got its parent replaced
  btrfs: make sure we create all new block groups
  btrfs: reset max_extent_size on clear in a bitmap
  btrfs: wait on caching when putting the bg cache
  btrfs: don't attempt to trim devices that don't support it
  btrfs: iterate all devices during trim, instead of fs_devices::alloc_list
  btrfs: locking: Add extra check in btrfs_init_new_buffer() to avoid deadlock
  btrfs: Handle owner mismatch gracefully when walking up tree
  soc/tegra: pmc: Fix child-node lookup
  arm64: dts: stratix10: Correct System Manager register size
  Cramfs: fix abad comparison when wrap-arounds occur
  ext4: avoid running out of journal credits when appending to an inline file
  media: em28xx: make v4l2-compliance happier by starting sequence on zero
  media: em28xx: fix input name for Terratec AV 350
  media: em28xx: use a default format if TRY_FMT fails
  xen: fix xen_qlock_wait()
  kgdboc: Passing ekgdboc to command line causes panic
  TC: Set DMA masks for devices
  MIPS: OCTEON: fix out of bounds array access on CN68XX
  powerpc/msi: Fix compile error on mpc83xx
  dm ioctl: harden copy_params()'s copy_from_user() from malicious users
  lockd: fix access beyond unterminated strings in prints
  nfsd: Fix an Oops in free_session()
  NFSv4.1: Fix the r/wsize checking
  genirq: Fix race on spurious interrupt detection
  printk: Fix panic caused by passing log_buf_len to command line
  smb3: on kerberos mount if server doesn't specify auth type use krb5
  smb3: do not attempt cifs operation in smb3 query info error path
  smb3: allow stats which track session and share reconnects to be reset
  w1: omap-hdq: fix missing bus unregister at removal
  iio: adc: at91: fix wrong channel number in triggered buffer mode
  iio: adc: at91: fix acking DRDY irq on simple conversions
  kbuild: fix kernel/bounds.c 'W=1' warning
  hugetlbfs: dirty pages as they are added to pagecache
  ima: fix showing large 'violations' or 'runtime_measurements_count'
  crypto: lrw - Fix out-of bounds access on counter overflow
  signal/GenWQE: Fix sending of SIGKILL
  PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk
  HID: hiddev: fix potential Spectre v1
  ext4: initialize retries variable in ext4_da_write_inline_data_begin()
  gfs2_meta: ->mount() can get NULL dev_name
  jbd2: fix use after free in jbd2_log_do_checkpoint()
  libnvdimm: Hold reference on parent while scheduling async init
  net/ipv4: defensive cipso option parsing
  xen: make xen_qlock_wait() nestable
  xen: fix race in xen_qlock_wait()
  tpm: Restore functionality to xen vtpm driver.
  xen-swiotlb: use actually allocated size on check physical continuous
  ALSA: hda: Check the non-cached stream buffers more explicitly
  dmaengine: dma-jz4780: Return error if not probed from DT
  signal: Always deliver the kernel's SIGKILL and SIGSTOP to a pid namespace 
  scsi: lpfc: Correct soft lockup when running mds diagnostics
  uio: ensure class is registered before devices
  driver/dma/ioat: Call del_timer_sync() without holding prep_lock
  usb: chipidea: Prevent unbalanced IRQ disable
  MD: fix invalid stored role for a disk
  ext4: fix argument checking in EXT4_IOC_MOVE_EXT
  tpm: suppress transmit cmd error logs when TPM 1.2 is disabled/deactivated
  scsi: megaraid_sas: fix a missing-check bug
  scsi: esp_scsi: Track residual for PIO transfers
  ath10k: schedule hardware restart if WMI command times out
  pinctrl: ssbi-gpio: Fix pm8xxx_pin_config_get() to be compliant
  pinctrl: spmi-mpp: Fix pmic_mpp_config_get() to be compliant
  pinctrl: qcom: spmi-mpp: Fix drive strength setting
  ACPI / LPSS: Add alternative ACPI HIDs for Cherry Trail DMA controllers
  kprobes: Return error if we fail to reuse kprobe instead of BUG_ON()
  pinctrl: qcom: spmi-mpp: Fix err handling of pmic_mpp_set_mux
  x86: boot: Fix EFI stub alignment
  Bluetooth: btbcm: Add entry for BCM4335C0 UART bluetooth
  mmc: sdhci-pci-o2micro: Add quirk for O2 Micro dev 0x8620 rev 0x01
  perf tools: Cleanup trace-event-info 'tdata' leak
  perf tools: Free temporary 'sys' string in read_event_files()
  tun: Consistently configure generic netdev params via rtnetlink
  swim: fix cleanup on setup error
  ataflop: fix error handling during setup
  locking/lockdep: Fix debug_locks off performance problem
  selftests: ftrace: Add synthetic event syntax testcase
  net: qla3xxx: Remove overflowing shift statement
  x86/fpu: Remove second definition of fpu in __fpu__restore_sig()
  sparc: Fix single-pcr perf event counter management.
  x86/kconfig: Fall back to ticket spinlocks
  x86/corruption-check: Fix panic in memory_corruption_check() when boot option 
without value is provided
  ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops
  ALSA: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905)
  parisc: Fix map_pages() to not overwrite existing pte entries
  parisc: Fix address in HPMC IVA
  ipmi: Fix timer race with module unload
  pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
  jffs2: free jffs2_sb_info through jffs2_kill_sb()
  hwmon: (pmbus) Fix page count auto-detection.
  bcache: fix miss key refill->end in writeback

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