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[Tim Gardner <tim.gardner@xxxxxxxxxxxxx>]

Public bug reported:

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 v4.4.12 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 v4.4.12 stable release shall be
applied:

Btrfs: don't use src fd for printk
perf/x86/intel/pt: Generate PMI in the STOP region as well
perf/core: Fix perf_event_open() vs. execve() race
perf test: Fix build of BPF and LLVM on older glibc libraries
ext4: iterate over buffer heads correctly in move_extent_per_page()
arm64: Fix typo in the pmdp_huge_get_and_clear() definition
arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
arm64: Implement ptep_set_access_flags() for hardware AF/DBM
arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables
kvm: arm64: Fix EC field in inject_abt64
remove directory incorrectly tries to set delete on close on non-empty directories
fs/cifs: correctly to anonymous authentication via NTLMSSP
fs/cifs: correctly to anonymous authentication for the LANMAN authentication
fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication
fs/cifs: correctly to anonymous authentication for the NTLM(v2) authentication
asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
ring-buffer: Use long for nr_pages to avoid overflow failures
ring-buffer: Prevent overflow of size in ring_buffer_resize()
crypto: caam - fix caam_jr_alloc() ret code
crypto: talitos - fix ahash algorithms registration
crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore}
clk: qcom: msm8916: Fix crypto clock flags
sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems
mfd: omap-usb-tll: Fix scheduling while atomic BUG
Input: pwm-beeper - fix - scheduling while atomic
irqchip/gic: Ensure ordering between read of INTACK and shared data
irqchip/gic-v3: Configure all interrupts as non-secure Group-1
can: fix handling of unmodifiable configuration options
mmc: mmc: Fix partition switch timeout for some eMMCs
mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings
dell-rbtn: Ignore ACPI notifications if device is suspended
mmc: longer timeout for long read time quirk
mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
Bluetooth: vhci: fix open_timeout vs. hdev race
Bluetooth: vhci: purge unhandled skbs
Bluetooth: vhci: Fix race at creating hci device
mei: fix NULL dereferencing during FW initiated disconnection
mei: amthif: discard not read messages
mei: bus: call mei_cl_read_start under device lock
USB: serial: mxuport: fix use-after-free in probe error path
USB: serial: keyspan: fix use-after-free in probe error path
USB: serial: quatech2: fix use-after-free in probe error path
USB: serial: io_edgeport: fix memory leaks in attach error path
USB: serial: io_edgeport: fix memory leaks in probe error path
USB: serial: option: add support for Cinterion PH8 and AHxx
USB: serial: option: add more ZTE device ids
USB: serial: option: add even more ZTE device ids
usb: gadget: f_fs: Fix EFAULT generation for async read operations
usb: f_mass_storage: test whether thread is running before starting another
usb: misc: usbtest: fix pattern tests for scatterlists.
usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request()
staging: comedi: das1800: fix possible NULL dereference
KVM: x86: fix ordering of cr0 initialization code in vmx_cpu_reset
MIPS: KVM: Fix timer IRQ race when freezing timer
MIPS: KVM: Fix timer IRQ race when writing CP0_Compare
KVM: x86: mask CPUID(0xD,0x1).EAX against host value
xen/x86: actually allocate legacy interrupts on PV guests
tty: vt, return error when con_startup fails
TTY: n_gsm, fix false positive WARN_ON
tty/serial: atmel: fix hardware handshake selection
Fix OpenSSH pty regression on close
serial: 8250_pci: fix divide error bug if baud rate is 0
serial: 8250_mid: use proper bar for DNV platform
serial: 8250_mid: recognize interrupt source in handler
serial: samsung: Reorder the sequence of clock control when call s3c24xx_serial_set_termios()
locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait()
clk: bcm2835: add locking to pll*_on/off methods
mcb: Fixed bar number assignment for the gdd
ALSA: hda/realtek - New codecs support for ALC234/ALC274/ALC294
ALSA: hda - Fix headphone noise on Dell XPS 13 9360
ALSA: hda/realtek - Add support for ALC295/ALC3254
ALSA: hda - Fix headset mic detection problem for one Dell machine
IB/srp: Fix a debug kernel crash
thunderbolt: Fix double free of drom buffer
SIGNAL: Move generic copy_siginfo() to signal.h
UBI: Fix static volume checks when Fastmap is used
hpfs: fix remount failure when there are no options changed
hpfs: implement the show_options method
scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
Revert "scsi: fix soft lockup in scsi_remove_target() on module removal"
kbuild: move -Wunused-const-variable to W=1 warning level
Linux 4.4.12

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu Xenial)
     Importance: Undecided
         Status: New


** Tags: kernel-stable-tracking-bug

** Tags added: kernel-stable-tracking-bug

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

** Description changed:

+ SRU Justification
  
-     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 v4.4.12 upstream stable
+        patch set is now available. It should be included in the Ubuntu
+        kernel as well.
  
-     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 v4.4.12 upstream stable
-        patch set is now available. It should be included in the Ubuntu
-        kernel as well.
+        git://git.kernel.org/
  
-        git://git.kernel.org/
+     TEST CASE: TBD
  
-     TEST CASE: TBD
+        The following patches from the v4.4.12 stable release shall be
+ applied:
  
-        The following patches from the v4.4.12 stable release shall be
- applied:
+ Btrfs: don't use src fd for printk
+ perf/x86/intel/pt: Generate PMI in the STOP region as well
+ perf/core: Fix perf_event_open() vs. execve() race
+ perf test: Fix build of BPF and LLVM on older glibc libraries
+ ext4: iterate over buffer heads correctly in move_extent_per_page()
+ arm64: Fix typo in the pmdp_huge_get_and_clear() definition
+ arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
+ arm64: Implement ptep_set_access_flags() for hardware AF/DBM
+ arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
+ arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
+ arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables
+ kvm: arm64: Fix EC field in inject_abt64
+ remove directory incorrectly tries to set delete on close on non-empty directories
+ fs/cifs: correctly to anonymous authentication via NTLMSSP
+ fs/cifs: correctly to anonymous authentication for the LANMAN authentication
+ fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication
+ fs/cifs: correctly to anonymous authentication for the NTLM(v2) authentication
+ asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
+ ring-buffer: Use long for nr_pages to avoid overflow failures
+ ring-buffer: Prevent overflow of size in ring_buffer_resize()
+ crypto: caam - fix caam_jr_alloc() ret code
+ crypto: talitos - fix ahash algorithms registration
+ crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore}
+ clk: qcom: msm8916: Fix crypto clock flags
+ sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems
+ mfd: omap-usb-tll: Fix scheduling while atomic BUG
+ Input: pwm-beeper - fix - scheduling while atomic
+ irqchip/gic: Ensure ordering between read of INTACK and shared data
+ irqchip/gic-v3: Configure all interrupts as non-secure Group-1
+ can: fix handling of unmodifiable configuration options
+ mmc: mmc: Fix partition switch timeout for some eMMCs
+ mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
+ ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings
+ dell-rbtn: Ignore ACPI notifications if device is suspended
+ mmc: longer timeout for long read time quirk
+ mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
+ Bluetooth: vhci: fix open_timeout vs. hdev race
+ Bluetooth: vhci: purge unhandled skbs
+ Bluetooth: vhci: Fix race at creating hci device
+ mei: fix NULL dereferencing during FW initiated disconnection
+ mei: amthif: discard not read messages
+ mei: bus: call mei_cl_read_start under device lock
+ USB: serial: mxuport: fix use-after-free in probe error path
+ USB: serial: keyspan: fix use-after-free in probe error path
+ USB: serial: quatech2: fix use-after-free in probe error path
+ USB: serial: io_edgeport: fix memory leaks in attach error path
+ USB: serial: io_edgeport: fix memory leaks in probe error path
+ USB: serial: option: add support for Cinterion PH8 and AHxx
+ USB: serial: option: add more ZTE device ids
+ USB: serial: option: add even more ZTE device ids
+ usb: gadget: f_fs: Fix EFAULT generation for async read operations
+ usb: f_mass_storage: test whether thread is running before starting another
+ usb: misc: usbtest: fix pattern tests for scatterlists.
+ usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request()
+ staging: comedi: das1800: fix possible NULL dereference
+ KVM: x86: fix ordering of cr0 initialization code in vmx_cpu_reset
+ MIPS: KVM: Fix timer IRQ race when freezing timer
+ MIPS: KVM: Fix timer IRQ race when writing CP0_Compare
+ KVM: x86: mask CPUID(0xD,0x1).EAX against host value
+ xen/x86: actually allocate legacy interrupts on PV guests
+ tty: vt, return error when con_startup fails
+ TTY: n_gsm, fix false positive WARN_ON
+ tty/serial: atmel: fix hardware handshake selection
+ Fix OpenSSH pty regression on close
+ serial: 8250_pci: fix divide error bug if baud rate is 0
+ serial: 8250_mid: use proper bar for DNV platform
+ serial: 8250_mid: recognize interrupt source in handler
+ serial: samsung: Reorder the sequence of clock control when call s3c24xx_serial_set_termios()
+ locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait()
+ clk: bcm2835: add locking to pll*_on/off methods
+ mcb: Fixed bar number assignment for the gdd
+ ALSA: hda/realtek - New codecs support for ALC234/ALC274/ALC294
+ ALSA: hda - Fix headphone noise on Dell XPS 13 9360
+ ALSA: hda/realtek - Add support for ALC295/ALC3254
+ ALSA: hda - Fix headset mic detection problem for one Dell machine
+ IB/srp: Fix a debug kernel crash
+ thunderbolt: Fix double free of drom buffer
+ SIGNAL: Move generic copy_siginfo() to signal.h
+ UBI: Fix static volume checks when Fastmap is used
+ hpfs: fix remount failure when there are no options changed
+ hpfs: implement the show_options method
+ scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
+ Revert "scsi: fix soft lockup in scsi_remove_target() on module removal"
+ kbuild: move -Wunused-const-variable to W=1 warning level
+ Linux 4.4.12

-- 
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https://bugs.launchpad.net/bugs/1588945

Title:
  Xenial update to v4.4.12 stable release

Status in linux package in Ubuntu:
  New
Status in linux source package in Xenial:
  New

Bug description:
  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 v4.4.12 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 v4.4.12 stable release shall be
  applied:

  Btrfs: don't use src fd for printk
  perf/x86/intel/pt: Generate PMI in the STOP region as well
  perf/core: Fix perf_event_open() vs. execve() race
  perf test: Fix build of BPF and LLVM on older glibc libraries
  ext4: iterate over buffer heads correctly in move_extent_per_page()
  arm64: Fix typo in the pmdp_huge_get_and_clear() definition
  arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
  arm64: Implement ptep_set_access_flags() for hardware AF/DBM
  arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
  arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
  arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables
  kvm: arm64: Fix EC field in inject_abt64
  remove directory incorrectly tries to set delete on close on non-empty directories
  fs/cifs: correctly to anonymous authentication via NTLMSSP
  fs/cifs: correctly to anonymous authentication for the LANMAN authentication
  fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication
  fs/cifs: correctly to anonymous authentication for the NTLM(v2) authentication
  asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
  ring-buffer: Use long for nr_pages to avoid overflow failures
  ring-buffer: Prevent overflow of size in ring_buffer_resize()
  crypto: caam - fix caam_jr_alloc() ret code
  crypto: talitos - fix ahash algorithms registration
  crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore}
  clk: qcom: msm8916: Fix crypto clock flags
  sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems
  mfd: omap-usb-tll: Fix scheduling while atomic BUG
  Input: pwm-beeper - fix - scheduling while atomic
  irqchip/gic: Ensure ordering between read of INTACK and shared data
  irqchip/gic-v3: Configure all interrupts as non-secure Group-1
  can: fix handling of unmodifiable configuration options
  mmc: mmc: Fix partition switch timeout for some eMMCs
  mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
  ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings
  dell-rbtn: Ignore ACPI notifications if device is suspended
  mmc: longer timeout for long read time quirk
  mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
  Bluetooth: vhci: fix open_timeout vs. hdev race
  Bluetooth: vhci: purge unhandled skbs
  Bluetooth: vhci: Fix race at creating hci device
  mei: fix NULL dereferencing during FW initiated disconnection
  mei: amthif: discard not read messages
  mei: bus: call mei_cl_read_start under device lock
  USB: serial: mxuport: fix use-after-free in probe error path
  USB: serial: keyspan: fix use-after-free in probe error path
  USB: serial: quatech2: fix use-after-free in probe error path
  USB: serial: io_edgeport: fix memory leaks in attach error path
  USB: serial: io_edgeport: fix memory leaks in probe error path
  USB: serial: option: add support for Cinterion PH8 and AHxx
  USB: serial: option: add more ZTE device ids
  USB: serial: option: add even more ZTE device ids
  usb: gadget: f_fs: Fix EFAULT generation for async read operations
  usb: f_mass_storage: test whether thread is running before starting another
  usb: misc: usbtest: fix pattern tests for scatterlists.
  usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request()
  staging: comedi: das1800: fix possible NULL dereference
  KVM: x86: fix ordering of cr0 initialization code in vmx_cpu_reset
  MIPS: KVM: Fix timer IRQ race when freezing timer
  MIPS: KVM: Fix timer IRQ race when writing CP0_Compare
  KVM: x86: mask CPUID(0xD,0x1).EAX against host value
  xen/x86: actually allocate legacy interrupts on PV guests
  tty: vt, return error when con_startup fails
  TTY: n_gsm, fix false positive WARN_ON
  tty/serial: atmel: fix hardware handshake selection
  Fix OpenSSH pty regression on close
  serial: 8250_pci: fix divide error bug if baud rate is 0
  serial: 8250_mid: use proper bar for DNV platform
  serial: 8250_mid: recognize interrupt source in handler
  serial: samsung: Reorder the sequence of clock control when call s3c24xx_serial_set_termios()
  locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait()
  clk: bcm2835: add locking to pll*_on/off methods
  mcb: Fixed bar number assignment for the gdd
  ALSA: hda/realtek - New codecs support for ALC234/ALC274/ALC294
  ALSA: hda - Fix headphone noise on Dell XPS 13 9360
  ALSA: hda/realtek - Add support for ALC295/ALC3254
  ALSA: hda - Fix headset mic detection problem for one Dell machine
  IB/srp: Fix a debug kernel crash
  thunderbolt: Fix double free of drom buffer
  SIGNAL: Move generic copy_siginfo() to signal.h
  UBI: Fix static volume checks when Fastmap is used
  hpfs: fix remount failure when there are no options changed
  hpfs: implement the show_options method
  scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
  Revert "scsi: fix soft lockup in scsi_remove_target() on module removal"
  kbuild: move -Wunused-const-variable to W=1 warning level
  Linux 4.4.12

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