Xenial update: v4.4.246 upstream stable release

[Kamal Mostafa]

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:

       v4.4.246 upstream stable release
       from git://git.kernel.org/

ah6: fix error return code in ah6_input()
atm: nicstar: Unmap DMA on send error
net: b44: fix error return code in b44_init_one()
net: bridge: add missing counters to ndo_get_stats64 callback
netlabel: fix our progress tracking in netlbl_unlabel_staticlist()
netlabel: fix an uninitialized warning in netlbl_unlabel_staticlist()
net/mlx4_core: Fix init_hca fields offset
net: x25: Increase refcnt of "struct x25_neigh" in x25_rx_call_request
qlcnic: fix error return code in qlcnic_83xx_restart_hw()
sctp: change to hold/put transport for proto_unreach_timer
net: usb: qmi_wwan: Set DTR quirk for MR400
net: Have netpoll bring-up DSA management interface
pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq
arm64: psci: Avoid printing in cpu_psci_cpu_die()
MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS
Input: adxl34x - clean up a data type in adxl34x_probe()
arm: dts: imx6qdl-udoo: fix rgmii phy-mode for ksz9031 phy
ARM: dts: imx50-evk: Fix the chip select 1 IOMUX
perf lock: Don't free "lock_seq_stat" if read_count isn't zero
can: dev: can_restart(): post buffer from the right context
can: peak_usb: fix potential integer overflow on shift of a int
can: m_can: m_can_handle_state_change(): fix state change
MIPS: Alchemy: Fix memleak in alchemy_clk_setup_cpu
regulator: ti-abb: Fix array out of bound read access on the first transition
libfs: fix error cast of negative value in simple_attr_write()
ALSA: ctl: fix error path at adding user-defined element set
ALSA: mixart: Fix mutex deadlock
tty: serial: imx: keep console clocks always on
efivarfs: fix memory leak in efivarfs_create()
ext4: fix bogus warning in ext4_update_dx_flag()
xtensa: disable preemption around cache alias management calls
mac80211: minstrel: remove deferred sampling code
mac80211: minstrel: fix tx status processing corner case
mac80211: allow driver to prevent two stations w/ same address
mac80211: free sta in sta_info_insert_finish() on errors
s390/cpum_sf.c: fix file permission for cpum_sfb_size
x86/microcode/intel: Check patch signature before saving microcode for early loading
Linux 4.4.246
UBUNTU: upstream stable to v4.4.246

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-201.233

---------------
linux (4.4.0-201.233) xenial; urgency=medium

  * xenial/linux: 4.4.0-201.233 -proposed tracker (LP: #1911265)

  * Touchpad not detected on ByteSpeed C15B laptop (LP: #1906128)
    - Input: i8042 - add ByteSpeed touchpad to noloop table

  * stack trace in kernel (LP: #1903596)
    - net: napi: remove useless stack trace

  * CVE-2020-27777
    - powerpc/rtas: Restrict RTAS requests from userspace
    - [Config]: Set CONFIG_PPC_RTAS_FILTER

  * Xenial update: v4.4.247 upstream stable release (LP: #1906703)
    - btrfs: tree-checker: Enhance chunk checker to validate chunk profile
    - btrfs: inode: Verify inode mode to avoid NULL pointer dereference
    - HID: cypress: Support Varmilo Keyboards' media hotkeys
    - Input: i8042 - allow insmod to succeed on devices without an i8042
      controller
    - HID: hid-sensor-hub: Fix issue with devices with no report ID
    - x86/xen: don't unbind uninitialized lock_kicker_irq
    - proc: don't allow async path resolution of /proc/self components
    - dmaengine: pl330: _prep_dma_memcpy: Fix wrong burst size
    - scsi: libiscsi: Fix NOP race condition
    - scsi: target: iscsi: Fix cmd abort fabric stop race
    - scsi: ufs: Fix race between shutdown and runtime resume flow
    - bnxt_en: fix error return code in bnxt_init_board()
    - video: hyperv_fb: Fix the cache type when mapping the VRAM
    - bnxt_en: Release PCI regions when DMA mask setup fails during probe.
    - IB/mthca: fix return value of error branch in mthca_init_cq()
    - nfc: s3fwrn5: use signed integer for parsing GPIO numbers
    - efivarfs: revert "fix memory leak in efivarfs_create()"
    - perf probe: Fix to die_entrypc() returns error correctly
    - USB: core: Change %pK for __user pointers to %px
    - x86/speculation: Fix prctl() when spectre_v2_user={seccomp,prctl},ibpb
    - USB: core: add endpoint-blacklist quirk
    - USB: core: Fix regression in Hercules audio card
    - btrfs: fix lockdep splat when reading qgroup config on mount
    - Linux 4.4.247

  * Xenial update: v4.4.246 upstream stable release (LP: #1906700)
    - ah6: fix error return code in ah6_input()
    - atm: nicstar: Unmap DMA on send error
    - net: b44: fix error return code in b44_init_one()
    - net: bridge: add missing counters to ndo_get_stats64 callback
    - netlabel: fix our progress tracking in netlbl_unlabel_staticlist()
    - netlabel: fix an uninitialized warning in netlbl_unlabel_staticlist()
    - net/mlx4_core: Fix init_hca fields offset
    - net: x25: Increase refcnt of "struct x25_neigh" in x25_rx_call_request
    - qlcnic: fix error return code in qlcnic_83xx_restart_hw()
    - sctp: change to hold/put transport for proto_unreach_timer
    - net: usb: qmi_wwan: Set DTR quirk for MR400
    - net: Have netpoll bring-up DSA management interface
    - pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq
    - arm64: psci: Avoid printing in cpu_psci_cpu_die()
    - MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS
    - Input: adxl34x - clean up a data type in adxl34x_probe()
    - arm: dts: imx6qdl-udoo: fix rgmii phy-mode for ksz9031 phy
    - ARM: ...