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

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

Linux 4.4.163
x86/time: Correct the attribute on jiffies' definition
l2tp: hold tunnel socket when handling control frames in l2tp_ip and l2tp_ip6
cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE
x86/percpu: Fix this_cpu_read()
sched/fair: Fix throttle_list starvation with low CFS quota
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
USB: fix the usbfs flag sanitization for control transfers
usb: gadget: storage: Fix Spectre v1 vulnerability
cdc-acm: correct counting of UART states in serial state notification
IB/ucm: Fix Spectre v1 vulnerability
RDMA/ucma: Fix Spectre v1 vulnerability
ptp: fix Spectre v1 vulnerability
cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
ahci: don't ignore result code of ahci_reset_controller()
crypto: shash - Fix a sleep-in-atomic bug in shash_setkey_unaligned
mremap: properly flush TLB before releasing the page
rtnetlink: Disallow FDB configuration for non-Ethernet device
vhost: Fix Spectre V1 vulnerability
net: drop skb on failure in ip_check_defrag()
sctp: fix race on sctp_id2asoc
r8169: fix NAPI handling under high load
net: stmmac: Fix stmmac_mdio_reset() when building stmmac as modules
net: socket: fix a missing-check bug
net: sched: gred: pass the right attribute to gred_change_table_def()
net/ipv6: Fix index counter for unicast addresses in in6_dump_addrs
ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
ipv6: mcast: fix a use-after-free in inet6_mc_check
net: bridge: remove ipv6 zero address check in mcast queries
bridge: do not add port to router list when receives query with source 0.0.0.0
perf tools: Disable parallelism for 'make clean'
mtd: spi-nor: Add support for is25wp series chips
fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
ARM: dts: imx53-qsb: disable 1.2GHz OPP
MIPS: DEC: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression
igb: Remove superfluous reset to PHY and page 0 selection
MIPS: microMIPS: Fix decoding of swsp16 instruction
scsi: aacraid: Fix typo in blink status
bonding: avoid defaulting hard_header_len to ETH_HLEN on slave removal
PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()
ASoC: spear: fix error return code in spdif_in_probe()
spi: xlp: fix error return code in xlp_spi_probe()
spi/bcm63xx: fix error return code in bcm63xx_spi_probe()
MIPS: Handle non word sized instructions when examining frame
spi/bcm63xx-hspi: fix error return code in bcm63xx_hsspi_probe()
usb: dwc3: omap: fix error return code in dwc3_omap_probe()
usb: ehci-omap: fix error return code in ehci_hcd_omap_probe()
usb: imx21-hcd: fix error return code in imx21_probe()
gpio: msic: fix error return code in platform_msic_gpio_probe()
sparc64: Fix exception handling in UltraSPARC-III memcpy.
gpu: host1x: fix error return code in host1x_probe()
sparc64 mm: Fix more TSB sizing issues
video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe()
tty: serial: sprd: fix error return code in sprd_probe()
l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()
brcmfmac: Fix glom_skb leak in brcmf_sdiod_recv_chain
gro: Allow tunnel stacking in the case of FOU/GUE
vti6: flush x-netns xfrm cache when vti interface is removed
ALSA: timer: Fix zero-division by continue of uninitialized instance
ixgbe: Correct X550EM_x revision check
ixgbe: fix RSS limit for X550
net/mlx5e: Correctly handle RSS indirection table when changing number of 
channels
net/mlx5e: Fix LRO modify
ixgbevf: Fix handling of NAPI budget when multiple queues are enabled per vector
fuse: Dont call set_page_dirty_lock() for ITER_BVEC pages for async_dio
drm/nouveau/fbcon: fix oops without fbdev emulation
bpf: generally move prog destruction to RCU deferral
usb-storage: fix bogus hardware error messages for ATA pass-thru devices
sch_red: update backlog as well
sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata
scsi: Add STARGET_CREATED_REMOVE state to scsi_target_state
xfrm: Clear sk_dst_cache when applying per-socket policy.
arm64: Fix potential race with hardware DBM in ptep_set_access_flags()
CIFS: handle guest access errors to Windows shares
ASoC: wm8940: Enable cache usage to fix crashes on resume
ASoC: ak4613: Enable cache usage to fix crashes on resume
MIPS: Fix FCSR Cause bit handling for correct SIGFPE issue
usbvision: revert commit 588afcc1
perf/core: Don't leak event in the syscall error path
aacraid: Start adapter after updating number of MSIX vectors
x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs
tpm: fix: return rc when devm_add_action() fails
thermal: allow u8500-thermal driver to be a module
thermal: allow spear-thermal driver to be a module
btrfs: don't create or leak aliased root while cleaning up orphans
sched/cgroup: Fix cgroup entity load tracking tear-down
um: Avoid longjmp/setjmp symbol clashes with libpthread.a
ipv6: orphan skbs in reassembly unit
net/mlx4_en: Resolve dividing by zero in 32-bit system
af_iucv: Move sockaddr length checks to before accessing sa_family in bind and 
connect handlers
radix-tree: fix radix_tree_iter_retry() for tagged iterators.
x86/mm/pat: Prevent hang during boot when mapping pages
ARM: dts: apq8064: add ahci ports-implemented mask
tracing: Skip more functions when doing stack tracing of events
ser_gigaset: use container_of() instead of detour
net: drop write-only stack variable
ipv6: suppress sparse warnings in IP6_ECN_set_ce()
KEYS: put keyring if install_session_keyring_to_cred() fails
net: cxgb3_main: fix a missing-check bug
perf/ring_buffer: Prevent concurent ring buffer access
smsc95xx: Check for Wake-on-LAN modes
smsc75xx: Check for Wake-on-LAN modes
r8152: Check for supported Wake-on-LAN Modes
sr9800: Check for supported Wake-on-LAN modes
lan78xx: Check for supported Wake-on-LAN modes
ax88179_178a: Check for supported Wake-on-LAN modes
asix: Check for supported Wake-on-LAN modes
pxa168fb: prepare the clock
Bluetooth: SMP: fix crash in unpairing
mac80211_hwsim: do not omit multicast announce of first added radio
xfrm: validate template mode
ARM: 8799/1: mm: fix pci_ioremap_io() offset check
cfg80211: reg: Init wiphy_idx in regulatory_hint_core()
mac80211: Always report TX status
xfrm6: call kfree_skb when skb is toobig
xfrm: Validate address prefix lengths in the xfrm selector.

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


** Tags: kernel-stable-tracking-bug

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

** 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 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:
  
-     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:
+        4.4.163 upstream stable release
+        from git://git.kernel.org/
  
-        4.4.163 upstream stable release
-        from git://git.kernel.org/
+ Linux 4.4.163
+ x86/time: Correct the attribute on jiffies' definition
+ l2tp: hold tunnel socket when handling control frames in l2tp_ip and l2tp_ip6
+ cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE
+ x86/percpu: Fix this_cpu_read()
+ sched/fair: Fix throttle_list starvation with low CFS quota
+ Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
+ USB: fix the usbfs flag sanitization for control transfers
+ usb: gadget: storage: Fix Spectre v1 vulnerability
+ cdc-acm: correct counting of UART states in serial state notification
+ IB/ucm: Fix Spectre v1 vulnerability
+ RDMA/ucma: Fix Spectre v1 vulnerability
+ ptp: fix Spectre v1 vulnerability
+ cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
+ ahci: don't ignore result code of ahci_reset_controller()
+ crypto: shash - Fix a sleep-in-atomic bug in shash_setkey_unaligned
+ mremap: properly flush TLB before releasing the page
+ rtnetlink: Disallow FDB configuration for non-Ethernet device
+ vhost: Fix Spectre V1 vulnerability
+ net: drop skb on failure in ip_check_defrag()
+ sctp: fix race on sctp_id2asoc
+ r8169: fix NAPI handling under high load
+ net: stmmac: Fix stmmac_mdio_reset() when building stmmac as modules
+ net: socket: fix a missing-check bug
+ net: sched: gred: pass the right attribute to gred_change_table_def()
+ net/ipv6: Fix index counter for unicast addresses in in6_dump_addrs
+ ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
+ ipv6: mcast: fix a use-after-free in inet6_mc_check
+ net: bridge: remove ipv6 zero address check in mcast queries
+ bridge: do not add port to router list when receives query with source 0.0.0.0
+ perf tools: Disable parallelism for 'make clean'
+ mtd: spi-nor: Add support for is25wp series chips
+ fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
+ ARM: dts: imx53-qsb: disable 1.2GHz OPP
+ MIPS: DEC: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression
+ igb: Remove superfluous reset to PHY and page 0 selection
+ MIPS: microMIPS: Fix decoding of swsp16 instruction
+ scsi: aacraid: Fix typo in blink status
+ bonding: avoid defaulting hard_header_len to ETH_HLEN on slave removal
+ PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()
+ ASoC: spear: fix error return code in spdif_in_probe()
+ spi: xlp: fix error return code in xlp_spi_probe()
+ spi/bcm63xx: fix error return code in bcm63xx_spi_probe()
+ MIPS: Handle non word sized instructions when examining frame
+ spi/bcm63xx-hspi: fix error return code in bcm63xx_hsspi_probe()
+ usb: dwc3: omap: fix error return code in dwc3_omap_probe()
+ usb: ehci-omap: fix error return code in ehci_hcd_omap_probe()
+ usb: imx21-hcd: fix error return code in imx21_probe()
+ gpio: msic: fix error return code in platform_msic_gpio_probe()
+ sparc64: Fix exception handling in UltraSPARC-III memcpy.
+ gpu: host1x: fix error return code in host1x_probe()
+ sparc64 mm: Fix more TSB sizing issues
+ video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe()
+ tty: serial: sprd: fix error return code in sprd_probe()
+ l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()
+ brcmfmac: Fix glom_skb leak in brcmf_sdiod_recv_chain
+ gro: Allow tunnel stacking in the case of FOU/GUE
+ vti6: flush x-netns xfrm cache when vti interface is removed
+ ALSA: timer: Fix zero-division by continue of uninitialized instance
+ ixgbe: Correct X550EM_x revision check
+ ixgbe: fix RSS limit for X550
+ net/mlx5e: Correctly handle RSS indirection table when changing number of 
channels
+ net/mlx5e: Fix LRO modify
+ ixgbevf: Fix handling of NAPI budget when multiple queues are enabled per 
vector
+ fuse: Dont call set_page_dirty_lock() for ITER_BVEC pages for async_dio
+ drm/nouveau/fbcon: fix oops without fbdev emulation
+ bpf: generally move prog destruction to RCU deferral
+ usb-storage: fix bogus hardware error messages for ATA pass-thru devices
+ sch_red: update backlog as well
+ sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata
+ scsi: Add STARGET_CREATED_REMOVE state to scsi_target_state
+ xfrm: Clear sk_dst_cache when applying per-socket policy.
+ arm64: Fix potential race with hardware DBM in ptep_set_access_flags()
+ CIFS: handle guest access errors to Windows shares
+ ASoC: wm8940: Enable cache usage to fix crashes on resume
+ ASoC: ak4613: Enable cache usage to fix crashes on resume
+ MIPS: Fix FCSR Cause bit handling for correct SIGFPE issue
+ usbvision: revert commit 588afcc1
+ perf/core: Don't leak event in the syscall error path
+ aacraid: Start adapter after updating number of MSIX vectors
+ x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs
+ tpm: fix: return rc when devm_add_action() fails
+ thermal: allow u8500-thermal driver to be a module
+ thermal: allow spear-thermal driver to be a module
+ btrfs: don't create or leak aliased root while cleaning up orphans
+ sched/cgroup: Fix cgroup entity load tracking tear-down
+ um: Avoid longjmp/setjmp symbol clashes with libpthread.a
+ ipv6: orphan skbs in reassembly unit
+ net/mlx4_en: Resolve dividing by zero in 32-bit system
+ af_iucv: Move sockaddr length checks to before accessing sa_family in bind 
and connect handlers
+ radix-tree: fix radix_tree_iter_retry() for tagged iterators.
+ x86/mm/pat: Prevent hang during boot when mapping pages
+ ARM: dts: apq8064: add ahci ports-implemented mask
+ tracing: Skip more functions when doing stack tracing of events
+ ser_gigaset: use container_of() instead of detour
+ net: drop write-only stack variable
+ ipv6: suppress sparse warnings in IP6_ECN_set_ce()
+ KEYS: put keyring if install_session_keyring_to_cred() fails
+ net: cxgb3_main: fix a missing-check bug
+ perf/ring_buffer: Prevent concurent ring buffer access
+ smsc95xx: Check for Wake-on-LAN modes
+ smsc75xx: Check for Wake-on-LAN modes
+ r8152: Check for supported Wake-on-LAN Modes
+ sr9800: Check for supported Wake-on-LAN modes
+ lan78xx: Check for supported Wake-on-LAN modes
+ ax88179_178a: Check for supported Wake-on-LAN modes
+ asix: Check for supported Wake-on-LAN modes
+ pxa168fb: prepare the clock
+ Bluetooth: SMP: fix crash in unpairing
+ mac80211_hwsim: do not omit multicast announce of first added radio
+ xfrm: validate template mode
+ ARM: 8799/1: mm: fix pci_ioremap_io() offset check
+ cfg80211: reg: Init wiphy_idx in regulatory_hint_core()
+ mac80211: Always report TX status
+ xfrm6: call kfree_skb when skb is toobig
+ xfrm: Validate address prefix lengths in the xfrm selector.

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https://bugs.launchpad.net/bugs/1810807

Title:
  Xenial update: 4.4.163 upstream stable release

Status in linux package in Ubuntu:
  Invalid

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

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

  Linux 4.4.163
  x86/time: Correct the attribute on jiffies' definition
  l2tp: hold tunnel socket when handling control frames in l2tp_ip and l2tp_ip6
  cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE
  x86/percpu: Fix this_cpu_read()
  sched/fair: Fix throttle_list starvation with low CFS quota
  Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
  USB: fix the usbfs flag sanitization for control transfers
  usb: gadget: storage: Fix Spectre v1 vulnerability
  cdc-acm: correct counting of UART states in serial state notification
  IB/ucm: Fix Spectre v1 vulnerability
  RDMA/ucma: Fix Spectre v1 vulnerability
  ptp: fix Spectre v1 vulnerability
  cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
  ahci: don't ignore result code of ahci_reset_controller()
  crypto: shash - Fix a sleep-in-atomic bug in shash_setkey_unaligned
  mremap: properly flush TLB before releasing the page
  rtnetlink: Disallow FDB configuration for non-Ethernet device
  vhost: Fix Spectre V1 vulnerability
  net: drop skb on failure in ip_check_defrag()
  sctp: fix race on sctp_id2asoc
  r8169: fix NAPI handling under high load
  net: stmmac: Fix stmmac_mdio_reset() when building stmmac as modules
  net: socket: fix a missing-check bug
  net: sched: gred: pass the right attribute to gred_change_table_def()
  net/ipv6: Fix index counter for unicast addresses in in6_dump_addrs
  ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
  ipv6: mcast: fix a use-after-free in inet6_mc_check
  net: bridge: remove ipv6 zero address check in mcast queries
  bridge: do not add port to router list when receives query with source 0.0.0.0
  perf tools: Disable parallelism for 'make clean'
  mtd: spi-nor: Add support for is25wp series chips
  fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
  ARM: dts: imx53-qsb: disable 1.2GHz OPP
  MIPS: DEC: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression
  igb: Remove superfluous reset to PHY and page 0 selection
  MIPS: microMIPS: Fix decoding of swsp16 instruction
  scsi: aacraid: Fix typo in blink status
  bonding: avoid defaulting hard_header_len to ETH_HLEN on slave removal
  PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()
  ASoC: spear: fix error return code in spdif_in_probe()
  spi: xlp: fix error return code in xlp_spi_probe()
  spi/bcm63xx: fix error return code in bcm63xx_spi_probe()
  MIPS: Handle non word sized instructions when examining frame
  spi/bcm63xx-hspi: fix error return code in bcm63xx_hsspi_probe()
  usb: dwc3: omap: fix error return code in dwc3_omap_probe()
  usb: ehci-omap: fix error return code in ehci_hcd_omap_probe()
  usb: imx21-hcd: fix error return code in imx21_probe()
  gpio: msic: fix error return code in platform_msic_gpio_probe()
  sparc64: Fix exception handling in UltraSPARC-III memcpy.
  gpu: host1x: fix error return code in host1x_probe()
  sparc64 mm: Fix more TSB sizing issues
  video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe()
  tty: serial: sprd: fix error return code in sprd_probe()
  l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()
  brcmfmac: Fix glom_skb leak in brcmf_sdiod_recv_chain
  gro: Allow tunnel stacking in the case of FOU/GUE
  vti6: flush x-netns xfrm cache when vti interface is removed
  ALSA: timer: Fix zero-division by continue of uninitialized instance
  ixgbe: Correct X550EM_x revision check
  ixgbe: fix RSS limit for X550
  net/mlx5e: Correctly handle RSS indirection table when changing number of 
channels
  net/mlx5e: Fix LRO modify
  ixgbevf: Fix handling of NAPI budget when multiple queues are enabled per 
vector
  fuse: Dont call set_page_dirty_lock() for ITER_BVEC pages for async_dio
  drm/nouveau/fbcon: fix oops without fbdev emulation
  bpf: generally move prog destruction to RCU deferral
  usb-storage: fix bogus hardware error messages for ATA pass-thru devices
  sch_red: update backlog as well
  sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata
  scsi: Add STARGET_CREATED_REMOVE state to scsi_target_state
  xfrm: Clear sk_dst_cache when applying per-socket policy.
  arm64: Fix potential race with hardware DBM in ptep_set_access_flags()
  CIFS: handle guest access errors to Windows shares
  ASoC: wm8940: Enable cache usage to fix crashes on resume
  ASoC: ak4613: Enable cache usage to fix crashes on resume
  MIPS: Fix FCSR Cause bit handling for correct SIGFPE issue
  usbvision: revert commit 588afcc1
  perf/core: Don't leak event in the syscall error path
  aacraid: Start adapter after updating number of MSIX vectors
  x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs
  tpm: fix: return rc when devm_add_action() fails
  thermal: allow u8500-thermal driver to be a module
  thermal: allow spear-thermal driver to be a module
  btrfs: don't create or leak aliased root while cleaning up orphans
  sched/cgroup: Fix cgroup entity load tracking tear-down
  um: Avoid longjmp/setjmp symbol clashes with libpthread.a
  ipv6: orphan skbs in reassembly unit
  net/mlx4_en: Resolve dividing by zero in 32-bit system
  af_iucv: Move sockaddr length checks to before accessing sa_family in bind 
and connect handlers
  radix-tree: fix radix_tree_iter_retry() for tagged iterators.
  x86/mm/pat: Prevent hang during boot when mapping pages
  ARM: dts: apq8064: add ahci ports-implemented mask
  tracing: Skip more functions when doing stack tracing of events
  ser_gigaset: use container_of() instead of detour
  net: drop write-only stack variable
  ipv6: suppress sparse warnings in IP6_ECN_set_ce()
  KEYS: put keyring if install_session_keyring_to_cred() fails
  net: cxgb3_main: fix a missing-check bug
  perf/ring_buffer: Prevent concurent ring buffer access
  smsc95xx: Check for Wake-on-LAN modes
  smsc75xx: Check for Wake-on-LAN modes
  r8152: Check for supported Wake-on-LAN Modes
  sr9800: Check for supported Wake-on-LAN modes
  lan78xx: Check for supported Wake-on-LAN modes
  ax88179_178a: Check for supported Wake-on-LAN modes
  asix: Check for supported Wake-on-LAN modes
  pxa168fb: prepare the clock
  Bluetooth: SMP: fix crash in unpairing
  mac80211_hwsim: do not omit multicast announce of first added radio
  xfrm: validate template mode
  ARM: 8799/1: mm: fix pci_ioremap_io() offset check
  cfg80211: reg: Init wiphy_idx in regulatory_hint_core()
  mac80211: Always report TX status
  xfrm6: call kfree_skb when skb is toobig
  xfrm: Validate address prefix lengths in the xfrm selector.

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