Xenial update: 4.4.171 upstream stable release

[Juerg Haefliger]

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 following upstream
       stable patches should be included in the Ubuntu kernel:

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

Linux 4.4.171
sunrpc: use-after-free in svc_process_common()
ext4: fix a potential fiemap/page fault deadlock w/ inline_data
crypto: cts - fix crash on short inputs
i2c: dev: prevent adapter retries and timeout being set as minus value
ACPI: power: Skip duplicate power resource references in _PRx
PCI: altera: Move retrain from fixup to altera_pcie_host_init()
PCI: altera: Rework config accessors for use without a struct pci_bus
PCI: altera: Poll for link training status after retraining the link
PCI: altera: Poll for link up status after retraining the link
PCI: altera: Check link status before retrain link
PCI: altera: Reorder read/write functions
PCI: altera: Fix altera_pcie_link_is_up()
slab: alien caches must not be initialized if the allocation of the alien cache failed
USB: Add USB_QUIRK_DELAY_CTRL_MSG quirk for Corsair K70 RGB
USB: storage: add quirk for SMI SM3350
USB: storage: don't insert sane sense for SPC3+ when bad sense specified
usb: cdc-acm: send ZLP for Telit 3G Intel based modems
cifs: Fix potential OOB access of lock element array
CIFS: Do not hide EINTR after sending network packets
btrfs: tree-checker: Fix misleading group system information
btrfs: tree-checker: Check level for leaves and nodes
btrfs: Verify that every chunk has corresponding block group at mount time
btrfs: Check that each block group has corresponding chunk at mount time
btrfs: validate type when reading a chunk
btrfs: tree-checker: Detect invalid and empty essential trees
btrfs: tree-checker: Verify block_group_item
btrfs: tree-check: reduce stack consumption in check_dir_item
btrfs: tree-checker: use %zu format string for size_t
btrfs: tree-checker: Add checker for dir item
btrfs: tree-checker: Fix false panic for sanity test
btrfs: tree-checker: Enhance btrfs_check_node output
btrfs: Move leaf and node validation checker to tree-checker.c
btrfs: Add checker for EXTENT_CSUM
btrfs: Add sanity check for EXTENT_DATA when reading out leaf
btrfs: Check if item pointer overlaps with the item itself
btrfs: Refactor check_leaf function for later expansion
btrfs: struct-funcs, constify readers
Btrfs: fix emptiness check for dirtied extent buffers at check_leaf()
Btrfs: memset to avoid stale content in btree leaf
Btrfs: kill BUG_ON in run_delayed_tree_ref
Btrfs: improve check_node to avoid reading corrupted nodes
Btrfs: memset to avoid stale content in btree node block
Btrfs: fix BUG_ON in btrfs_mark_buffer_dirty
Btrfs: check btree node's nritems
Btrfs: detect corruption when non-root leaf has zero item
Btrfs: fix em leak in find_first_block_group
Btrfs: check inconsistence between chunk and block group
Btrfs: add validadtion checks for chunk loading
btrfs: Enhance chunk validation check
btrfs: cleanup, stop casting for extent_map->lookup everywhere
ALSA: hda/realtek - Disable headset Mic VREF for headset mode of ALC225

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-145.171

---------------
linux (4.4.0-145.171) xenial; urgency=medium

  * linux: 4.4.0-145.171 -proposed tracker (LP: #1821724)

  * linux-generic should depend on linux-base >=4.1 (LP: #1820419)
    - [Packaging] Fix linux-base dependency

linux (4.4.0-144.170) xenial; urgency=medium

  * linux: 4.4.0-144.170 -proposed tracker (LP: #1819660)

  * Packaging resync (LP: #1786013)
    - [Packaging] resync getabis
    - [Packaging] update helper scripts
    - [Packaging] resync retpoline extraction

  * C++ demangling support missing from perf (LP: #1396654)
    - [Packaging] fix a mistype

  * CVE-2019-9213
    - mm: enforce min addr even if capable() in expand_downwards()

  * CVE-2019-3460
    - Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt

  * Xenial update: 4.4.176 upstream stable release (LP: #1818815)
    - net: fix IPv6 prefix route residue
    - vsock: cope with memory allocation failure at socket creation time
    - hwmon: (lm80) Fix missing unlock on error in set_fan_div()
    - net: Fix for_each_netdev_feature on Big endian
    - net: Add header for usage of fls64()
    - tcp: tcp_v4_err() should be more careful
    - net: Do not allocate page fragments that are not skb aligned
    - tcp: clear icsk_backoff in tcp_write_queue_purge()
    - vxlan: test dev->flags & IFF_UP before calling netif_rx()
    - net: stmmac: Fix a race in EEE enable callback
    - net: ipv4: use a dedicated counter for icmp_v4 redirect packets
    - x86: livepatch: Treat R_X86_64_PLT32 as R_X86_64_PC32
    - mfd: as3722: Handle interrupts on suspend
    - mfd: as3722: Mark PM functions as __maybe_unused
    - net/x25: do not hold the cpu too long in x25_new_lci()
    - mISDN: fix a race in dev_expire_timer()
    - ax25: fix possible use-after-free
    - Linux 4.4.176

  * sky2 ethernet card don't work after returning from suspension
    (LP: #1798921) // Xenial update: 4.4.176 upstream stable release
    (LP: #1818815)
    - sky2: Increase D3 delay again

  * Xenial update: 4.4.175 upstream stable release (LP: #1818813)
    - drm/bufs: Fix Spectre v1 vulnerability
    - staging: iio: adc: ad7280a: handle error from __ad7280_read32()
    - ASoC: Intel: mrfld: fix uninitialized variable access
    - scsi: lpfc: Correct LCB RJT handling
    - ARM: 8808/1: kexec:offline panic_smp_self_stop CPU
    - dlm: Don't swamp the CPU with callbacks queued during recovery
    - x86/PCI: Fix Broadcom CNB20LE unintended sign extension (redux)
    - powerpc/pseries: add of_node_put() in dlpar_detach_node()
    - serial: fsl_lpuart: clear parity enable bit when disable parity
    - ptp: check gettime64 return code in PTP_SYS_OFFSET ioctl
    - staging:iio:ad2s90: Make probe handle spi_setup failure
    - staging: iio: ad7780: update voltage on read
    - ARM: OMAP2+: hwmod: Fix some section annotations
    - modpost: validate symbol names also in find_elf_symbol
    - perf tools: Add Hygon Dhyana support
    - soc/tegra: Don't leak device tree node reference
    - f2fs: move dir data flush to write checkpoint process
    - f2fs: fix wrong return value of f2fs_acl_create
    - sunvdc: Do not spin in an infin...