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[Luis Henriques <luis.henriques@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 Linus' tree or in a minimally
       backported form of that patch. The 3.16.7-ckt20 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://kernel.ubuntu.com/ubuntu/linux.git

    TEST CASE: TBD

       The following patches are in the 3.16.7-ckt20 stable release:
regmap: debugfs: Ensure we don't underflow when printing access masks
regmap: debugfs: Don't bother actually printing when calculating max length
x86/xen: Support kexec/kdump in HVM guests by doing a soft reset
s390/boot/decompression: disable floating point in decompressor
svcrdma: handle rdma read with a non-zero initial page offset
dm: fix AB-BA deadlock in __dm_destroy()
[SMB3] Do not fall back to SMBWriteX in set_file_size error cases
clk: ti: fix dual-registration of uart4_ick
ASoC: dwc: correct irq clear method
dm raid: fix round up of default region size
ALSA: hda: Add dock support for ThinkPad T550
ALSA: hda - Apply SPDIF pin ctl to MacBookPro 12,1
USB: Add reset-resume quirk for two Plantronics usb headphones.
usb: Add device quirk for Logitech PTZ cameras
staging: speakup: fix speakup-r regression
ALSA: synth: Fix conflicting OSS device registration on AWE32
arm64: readahead: fault retry breaks mmap file read random detection
sched/core: Fix TASK_DEAD race in finish_task_switch()
dm cache: fix NULL pointer when switching from cleaner policy
3w-9xxx: don't unmap bounce buffered commands
workqueue: make sure delayed work run in local cpu
drm/radeon: add pm sysfs files late
crypto: sparc - initialize blkcipher.ivsize
drm/nouveau/fbcon: take runpm reference when userspace has an open fd
arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419
crypto: ahash - ensure statesize is non-zero
dm thin: fix missing pool reference count decrement in pool_ctr error path
btrfs: check unsupported filters in balance arguments
btrfs: fix use after free iterating extrefs
i2c: rcar: enable RuntimePM before registering to the core
i2c: s3c2410: enable RuntimePM before registering to the core
i2c: designware-platdrv: enable RuntimePM before registering to the core
i2c: designware: Do not use parameters from ACPI on Dell Inspiron 7348
btrfs: fix possible leak in btrfs_ioctl_balance()
drm: Reject DRI1 hw lock ioctl functions for kms drivers
usb: xhci: Add support for URB_ZERO_PACKET to bulk/sg transfers
rbd: fix double free on rbd_dev->header_name
ath9k: declare required extra tx headroom
iio: accel: sca3000: memory corruption in sca3000_read_first_n_hw_rb()
iwlwifi: dvm: fix D3 firmware PN programming
iwlwifi: mvm: fix D3 firmware PN programming
iwlwifi: fix firmware filename for 3160
iwlwifi: pci: add a few more PCI subvendor IDs for the 7265 series
ARM: orion: Fix DSA platform device after mvmdio conversion
xen-blkfront: check for null drvdata in blkback_changed (XenbusStateClosing)
iio: mxs-lradc: Fix temperature offset
ALSA: hda - Fix inverted internal mic on Lenovo G50-80
drm/i915: Deny wrapping an userptr into a framebuffer
x86/efi: Fix multiple GOP device support
ASoC: Add info callback for SX_TLV controls
xhci: don't finish a TD if we get a short transfer event mid TD
xhci: handle no ping response error properly
xhci: Add spurious wakeup quirk for LynxPoint-LP controllers
ASoC: wm8904: Correct number of EQ registers
drm/nouveau/gem: return only valid domain when there's only one
powerpc/rtas: Validate rtas.entry before calling enter_rtas()
mm: make sendfile(2) killable
rbd: don't leak parent_spec in rbd_dev_probe_parent()
rbd: prevent kernel stack blow up on rbd map
dm btree remove: fix a bug when rebalancing nodes after removal
dm btree: fix leak of bufio-backed block in btree_split_beneath error path
IB/cm: Fix rb-tree duplicate free and use-after-free
iwlwifi: mvm: init card correctly on ctkill exit check
module: Fix locking in symbol_put_addr()
crypto: api - Only abort operations on fatal signal
md/raid1: submit_bio_wait() returns 0 on success
md/raid10: submit_bio_wait() returns 0 on success
iommu/amd: Don't clear DTE flags when modifying it
i2c: mv64xxx: really allow I2C offloading
drm/radeon: don't try to recreate sysfs entries on resume
mvsas: Fix NULL pointer dereference in mvs_slot_task_free
Revert "ARM64: unwind: Fix PC calculation"
drm/radeon: Restore LCD backlight level on resume (>= R5xx)
drm/radeon: move bl encoder assignment into bl init
drm/radeon: fix dpms when driver backlight control is disabled
rbd: require stable pages if message data CRCs are enabled
md/raid5: fix locking in handle_stripe_clean_event()
Revert "md: allow a partially recovered device to be hot-added to an array."
ipv6: Fix IPsec pre-encap fragmentation check
ppp: fix pppoe_dev deletion condition in pppoe_release()
ipv6: gre: support SIT encapsulation
net/mlx4: Copy/set only sizeof struct mlx4_eqe bytes
serial: 8250_pci: Add support for 16 port Exar boards
serial: 8250_pci: Add support for 12 port Exar boards
serial: 8250_pci: Correct uartclk for xr17v35x expansion chips
isdn_ppp: Add checks for allocation failure in isdn_ppp_open()
ppp, slip: Validate VJ compression slot parameters completely
staging/dgnc: fix info leak in ioctl
power: bq24190_charger: suppress build warning
sfc: Fix memcpy() with const destination compiler warning.
sched/preempt: Rename PREEMPT_CHECK_OFFSET to PREEMPT_DISABLE_OFFSET
sched/preempt: Fix cond_resched_lock() and cond_resched_softirq()
Linux 3.16.7-ckt20

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

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


** Tags: kernel-stable-tracking-bug

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

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

** Changed in: linux (Ubuntu)
       Status: New => Invalid

** 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 Linus' tree or in a minimally
+        backported form of that patch. The 3.16.7-ckt20 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 Linus' tree or in a minimally
-        backported form of that patch. The 3.16.7-ckt20 upstream stable
-        patch set is now available. It should be included in the Ubuntu
-        kernel as well.
+        git://kernel.ubuntu.com/ubuntu/linux.git
  
-        git://kernel.ubuntu.com/ubuntu/linux.git
+     TEST CASE: TBD
  
-     TEST CASE: TBD
- 
-        The following patches are in the 3.16.7-ckt20 stable release:
+        The following patches are in the 3.16.7-ckt20 stable release:
+ regmap: debugfs: Ensure we don't underflow when printing access masks
+ regmap: debugfs: Don't bother actually printing when calculating max length
+ x86/xen: Support kexec/kdump in HVM guests by doing a soft reset
+ s390/boot/decompression: disable floating point in decompressor
+ svcrdma: handle rdma read with a non-zero initial page offset
+ dm: fix AB-BA deadlock in __dm_destroy()
+ [SMB3] Do not fall back to SMBWriteX in set_file_size error cases
+ clk: ti: fix dual-registration of uart4_ick
+ ASoC: dwc: correct irq clear method
+ dm raid: fix round up of default region size
+ ALSA: hda: Add dock support for ThinkPad T550
+ ALSA: hda - Apply SPDIF pin ctl to MacBookPro 12,1
+ USB: Add reset-resume quirk for two Plantronics usb headphones.
+ usb: Add device quirk for Logitech PTZ cameras
+ staging: speakup: fix speakup-r regression
+ ALSA: synth: Fix conflicting OSS device registration on AWE32
+ arm64: readahead: fault retry breaks mmap file read random detection
+ sched/core: Fix TASK_DEAD race in finish_task_switch()
+ dm cache: fix NULL pointer when switching from cleaner policy
+ 3w-9xxx: don't unmap bounce buffered commands
+ workqueue: make sure delayed work run in local cpu
+ drm/radeon: add pm sysfs files late
+ crypto: sparc - initialize blkcipher.ivsize
+ drm/nouveau/fbcon: take runpm reference when userspace has an open fd
+ arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419
+ crypto: ahash - ensure statesize is non-zero
+ dm thin: fix missing pool reference count decrement in pool_ctr error path
+ btrfs: check unsupported filters in balance arguments
+ btrfs: fix use after free iterating extrefs
+ i2c: rcar: enable RuntimePM before registering to the core
+ i2c: s3c2410: enable RuntimePM before registering to the core
+ i2c: designware-platdrv: enable RuntimePM before registering to the core
+ i2c: designware: Do not use parameters from ACPI on Dell Inspiron 7348
+ btrfs: fix possible leak in btrfs_ioctl_balance()
+ drm: Reject DRI1 hw lock ioctl functions for kms drivers
+ usb: xhci: Add support for URB_ZERO_PACKET to bulk/sg transfers
+ rbd: fix double free on rbd_dev->header_name
+ ath9k: declare required extra tx headroom
+ iio: accel: sca3000: memory corruption in sca3000_read_first_n_hw_rb()
+ iwlwifi: dvm: fix D3 firmware PN programming
+ iwlwifi: mvm: fix D3 firmware PN programming
+ iwlwifi: fix firmware filename for 3160
+ iwlwifi: pci: add a few more PCI subvendor IDs for the 7265 series
+ ARM: orion: Fix DSA platform device after mvmdio conversion
+ xen-blkfront: check for null drvdata in blkback_changed (XenbusStateClosing)
+ iio: mxs-lradc: Fix temperature offset
+ ALSA: hda - Fix inverted internal mic on Lenovo G50-80
+ drm/i915: Deny wrapping an userptr into a framebuffer
+ x86/efi: Fix multiple GOP device support
+ ASoC: Add info callback for SX_TLV controls
+ xhci: don't finish a TD if we get a short transfer event mid TD
+ xhci: handle no ping response error properly
+ xhci: Add spurious wakeup quirk for LynxPoint-LP controllers
+ ASoC: wm8904: Correct number of EQ registers
+ drm/nouveau/gem: return only valid domain when there's only one
+ powerpc/rtas: Validate rtas.entry before calling enter_rtas()
+ mm: make sendfile(2) killable
+ rbd: don't leak parent_spec in rbd_dev_probe_parent()
+ rbd: prevent kernel stack blow up on rbd map
+ dm btree remove: fix a bug when rebalancing nodes after removal
+ dm btree: fix leak of bufio-backed block in btree_split_beneath error path
+ IB/cm: Fix rb-tree duplicate free and use-after-free
+ iwlwifi: mvm: init card correctly on ctkill exit check
+ module: Fix locking in symbol_put_addr()
+ crypto: api - Only abort operations on fatal signal
+ md/raid1: submit_bio_wait() returns 0 on success
+ md/raid10: submit_bio_wait() returns 0 on success
+ iommu/amd: Don't clear DTE flags when modifying it
+ i2c: mv64xxx: really allow I2C offloading
+ drm/radeon: don't try to recreate sysfs entries on resume
+ mvsas: Fix NULL pointer dereference in mvs_slot_task_free
+ Revert "ARM64: unwind: Fix PC calculation"
+ drm/radeon: Restore LCD backlight level on resume (>= R5xx)
+ drm/radeon: move bl encoder assignment into bl init
+ drm/radeon: fix dpms when driver backlight control is disabled
+ rbd: require stable pages if message data CRCs are enabled
+ md/raid5: fix locking in handle_stripe_clean_event()
+ Revert "md: allow a partially recovered device to be hot-added to an array."
+ ipv6: Fix IPsec pre-encap fragmentation check
+ ppp: fix pppoe_dev deletion condition in pppoe_release()
+ ipv6: gre: support SIT encapsulation
+ net/mlx4: Copy/set only sizeof struct mlx4_eqe bytes
+ serial: 8250_pci: Add support for 16 port Exar boards
+ serial: 8250_pci: Add support for 12 port Exar boards
+ serial: 8250_pci: Correct uartclk for xr17v35x expansion chips
+ isdn_ppp: Add checks for allocation failure in isdn_ppp_open()
+ ppp, slip: Validate VJ compression slot parameters completely
+ staging/dgnc: fix info leak in ioctl
+ power: bq24190_charger: suppress build warning
+ sfc: Fix memcpy() with const destination compiler warning.
+ sched/preempt: Rename PREEMPT_CHECK_OFFSET to PREEMPT_DISABLE_OFFSET
+ sched/preempt: Fix cond_resched_lock() and cond_resched_softirq()
+ Linux 3.16.7-ckt20

-- 
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https://bugs.launchpad.net/bugs/1520282

Title:
  Trusty update to 3.16.7-ckt20 stable release

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Trusty:
  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 Linus' tree or in a minimally
         backported form of that patch. The 3.16.7-ckt20 upstream stable
         patch set is now available. It should be included in the Ubuntu
         kernel as well.

         git://kernel.ubuntu.com/ubuntu/linux.git

      TEST CASE: TBD

         The following patches are in the 3.16.7-ckt20 stable release:
  regmap: debugfs: Ensure we don't underflow when printing access masks
  regmap: debugfs: Don't bother actually printing when calculating max length
  x86/xen: Support kexec/kdump in HVM guests by doing a soft reset
  s390/boot/decompression: disable floating point in decompressor
  svcrdma: handle rdma read with a non-zero initial page offset
  dm: fix AB-BA deadlock in __dm_destroy()
  [SMB3] Do not fall back to SMBWriteX in set_file_size error cases
  clk: ti: fix dual-registration of uart4_ick
  ASoC: dwc: correct irq clear method
  dm raid: fix round up of default region size
  ALSA: hda: Add dock support for ThinkPad T550
  ALSA: hda - Apply SPDIF pin ctl to MacBookPro 12,1
  USB: Add reset-resume quirk for two Plantronics usb headphones.
  usb: Add device quirk for Logitech PTZ cameras
  staging: speakup: fix speakup-r regression
  ALSA: synth: Fix conflicting OSS device registration on AWE32
  arm64: readahead: fault retry breaks mmap file read random detection
  sched/core: Fix TASK_DEAD race in finish_task_switch()
  dm cache: fix NULL pointer when switching from cleaner policy
  3w-9xxx: don't unmap bounce buffered commands
  workqueue: make sure delayed work run in local cpu
  drm/radeon: add pm sysfs files late
  crypto: sparc - initialize blkcipher.ivsize
  drm/nouveau/fbcon: take runpm reference when userspace has an open fd
  arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419
  crypto: ahash - ensure statesize is non-zero
  dm thin: fix missing pool reference count decrement in pool_ctr error path
  btrfs: check unsupported filters in balance arguments
  btrfs: fix use after free iterating extrefs
  i2c: rcar: enable RuntimePM before registering to the core
  i2c: s3c2410: enable RuntimePM before registering to the core
  i2c: designware-platdrv: enable RuntimePM before registering to the core
  i2c: designware: Do not use parameters from ACPI on Dell Inspiron 7348
  btrfs: fix possible leak in btrfs_ioctl_balance()
  drm: Reject DRI1 hw lock ioctl functions for kms drivers
  usb: xhci: Add support for URB_ZERO_PACKET to bulk/sg transfers
  rbd: fix double free on rbd_dev->header_name
  ath9k: declare required extra tx headroom
  iio: accel: sca3000: memory corruption in sca3000_read_first_n_hw_rb()
  iwlwifi: dvm: fix D3 firmware PN programming
  iwlwifi: mvm: fix D3 firmware PN programming
  iwlwifi: fix firmware filename for 3160
  iwlwifi: pci: add a few more PCI subvendor IDs for the 7265 series
  ARM: orion: Fix DSA platform device after mvmdio conversion
  xen-blkfront: check for null drvdata in blkback_changed (XenbusStateClosing)
  iio: mxs-lradc: Fix temperature offset
  ALSA: hda - Fix inverted internal mic on Lenovo G50-80
  drm/i915: Deny wrapping an userptr into a framebuffer
  x86/efi: Fix multiple GOP device support
  ASoC: Add info callback for SX_TLV controls
  xhci: don't finish a TD if we get a short transfer event mid TD
  xhci: handle no ping response error properly
  xhci: Add spurious wakeup quirk for LynxPoint-LP controllers
  ASoC: wm8904: Correct number of EQ registers
  drm/nouveau/gem: return only valid domain when there's only one
  powerpc/rtas: Validate rtas.entry before calling enter_rtas()
  mm: make sendfile(2) killable
  rbd: don't leak parent_spec in rbd_dev_probe_parent()
  rbd: prevent kernel stack blow up on rbd map
  dm btree remove: fix a bug when rebalancing nodes after removal
  dm btree: fix leak of bufio-backed block in btree_split_beneath error path
  IB/cm: Fix rb-tree duplicate free and use-after-free
  iwlwifi: mvm: init card correctly on ctkill exit check
  module: Fix locking in symbol_put_addr()
  crypto: api - Only abort operations on fatal signal
  md/raid1: submit_bio_wait() returns 0 on success
  md/raid10: submit_bio_wait() returns 0 on success
  iommu/amd: Don't clear DTE flags when modifying it
  i2c: mv64xxx: really allow I2C offloading
  drm/radeon: don't try to recreate sysfs entries on resume
  mvsas: Fix NULL pointer dereference in mvs_slot_task_free
  Revert "ARM64: unwind: Fix PC calculation"
  drm/radeon: Restore LCD backlight level on resume (>= R5xx)
  drm/radeon: move bl encoder assignment into bl init
  drm/radeon: fix dpms when driver backlight control is disabled
  rbd: require stable pages if message data CRCs are enabled
  md/raid5: fix locking in handle_stripe_clean_event()
  Revert "md: allow a partially recovered device to be hot-added to an array."
  ipv6: Fix IPsec pre-encap fragmentation check
  ppp: fix pppoe_dev deletion condition in pppoe_release()
  ipv6: gre: support SIT encapsulation
  net/mlx4: Copy/set only sizeof struct mlx4_eqe bytes
  serial: 8250_pci: Add support for 16 port Exar boards
  serial: 8250_pci: Add support for 12 port Exar boards
  serial: 8250_pci: Correct uartclk for xr17v35x expansion chips
  isdn_ppp: Add checks for allocation failure in isdn_ppp_open()
  ppp, slip: Validate VJ compression slot parameters completely
  staging/dgnc: fix info leak in ioctl
  power: bq24190_charger: suppress build warning
  sfc: Fix memcpy() with const destination compiler warning.
  sched/preempt: Rename PREEMPT_CHECK_OFFSET to PREEMPT_DISABLE_OFFSET
  sched/preempt: Fix cond_resched_lock() and cond_resched_softirq()
  Linux 3.16.7-ckt20

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