** Description changed:

- 
-     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 v4.15.4 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 v4.15.4 stable release shall be
+ 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 v4.15.4 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 v4.15.4 stable release shall be
  applied:
+ 
+ watchdog: indydog: Add dependency on SGI_HAS_INDYDOG
+ cifs: Fix missing put_xid in cifs_file_strict_mmap
+ cifs: Fix autonegotiate security settings mismatch
+ CIFS: zero sensitive data when freeing
+ cpufreq: mediatek: add mediatek related projects into blacklist
+ dmaengine: dmatest: fix container_of member in dmatest_callback
+ ssb: Do not disable PCI host on non-Mips
+ watchdog: gpio_wdt: set WDOG_HW_RUNNING in gpio_wdt_stop
+ Revert "drm/i915: mark all device info struct with __initconst"
+ sched/rt: Use container_of() to get root domain in rto_push_irq_work_func()
+ sched/rt: Up the root domain ref count when passing it around via IPIs
+ media: dvb-usb-v2: lmedm04: Improve logic checking of warm start
+ media: dvb-usb-v2: lmedm04: move ts2020 attach to dm04_lme2510_tuner
+ media: hdpvr: Fix an error handling path in hdpvr_probe()
+ arm64: mm: Use non-global mappings for kernel space
+ arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN
+ arm64: mm: Move ASID from TTBR0 to TTBR1
+ arm64: mm: Remove pre_ttbr0_update_workaround for Falkor erratum #E1003
+ arm64: mm: Rename post_ttbr0_update_workaround
+ arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN
+ arm64: mm: Allocate ASIDs in pairs
+ arm64: mm: Add arm64_kernel_unmapped_at_el0 helper
+ arm64: mm: Invalidate both kernel and user ASIDs when performing TLBI
+ arm64: entry: Add exception trampoline page for exceptions from EL0
+ arm64: mm: Map entry trampoline into trampoline and kernel page tables
+ arm64: entry: Explicitly pass exception level to kernel_ventry macro
+ arm64: entry: Hook up entry trampoline to exception vectors
+ arm64: erratum: Work around Falkor erratum #E1003 in trampoline code
+ arm64: cpu_errata: Add Kryo to Falkor 1003 errata
+ arm64: tls: Avoid unconditional zeroing of tpidrro_el0 for native tasks
+ arm64: entry: Add fake CPU feature for unmapping the kernel at EL0
+ arm64: kaslr: Put kernel vectors address in separate data page
+ arm64: use RET instruction for exiting the trampoline
+ arm64: Kconfig: Add CONFIG_UNMAP_KERNEL_AT_EL0
+ arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry
+ arm64: Take into account ID_AA64PFR0_EL1.CSV3
+ arm64: capabilities: Handle duplicate entries for a capability
+ arm64: mm: Introduce TTBR_ASID_MASK for getting at the ASID in the TTBR
+ arm64: kpti: Fix the interaction between ASID switching and software PAN
+ arm64: cputype: Add MIDR values for Cavium ThunderX2 CPUs
+ arm64: Turn on KPTI only on CPUs that need it
+ arm64: kpti: Make use of nG dependent on arm64_kernel_unmapped_at_el0()
+ arm64: mm: Permit transitioning from Global to Non-Global without BBM
+ arm64: kpti: Add ->enable callback to remap swapper using nG mappings
+ arm64: Force KPTI to be disabled on Cavium ThunderX
+ arm64: entry: Reword comment about post_ttbr_update_workaround
+ arm64: idmap: Use "awx" flags for .idmap.text .pushsection directives
+ perf: arm_spe: Fail device probe when arm64_kernel_unmapped_at_el0()
+ arm64: barrier: Add CSDB macros to control data-value prediction
+ arm64: Implement array_index_mask_nospec()
+ arm64: Make USER_DS an inclusive limit
+ arm64: Use pointer masking to limit uaccess speculation
+ arm64: entry: Ensure branch through syscall table is bounded under speculation
+ arm64: uaccess: Prevent speculative use of the current addr_limit
+ arm64: uaccess: Don't bother eliding access_ok checks in __{get, put}_user
+ arm64: uaccess: Mask __user pointers for __arch_{clear, copy_*}_user
+ arm64: futex: Mask __user pointers prior to dereference
+ arm64: cpufeature: __this_cpu_has_cap() shouldn't stop early
+ arm64: Run enable method for errata work arounds on late CPUs
+ arm64: cpufeature: Pass capability structure to ->enable callback
+ drivers/firmware: Expose psci_get_version through psci_ops structure
+ arm64: Move post_ttbr_update_workaround to C code
+ arm64: Add skeleton to harden the branch predictor against aliasing attacks
+ arm64: Move BP hardening to check_and_switch_context
+ arm64: KVM: Use per-CPU vector when BP hardening is enabled
+ arm64: entry: Apply BP hardening for high-priority synchronous exceptions
+ arm64: entry: Apply BP hardening for suspicious interrupts from EL0
+ arm64: cputype: Add missing MIDR values for Cortex-A72 and Cortex-A75
+ arm64: Implement branch predictor hardening for affected Cortex-A CPUs
+ arm64: Implement branch predictor hardening for Falkor
+ arm64: Branch predictor hardening for Cavium ThunderX2
+ arm64: KVM: Increment PC after handling an SMC trap
+ arm/arm64: KVM: Consolidate the PSCI include files
+ arm/arm64: KVM: Add PSCI_VERSION helper
+ arm/arm64: KVM: Add smccc accessors to PSCI code
+ arm/arm64: KVM: Implement PSCI 1.0 support
+ arm/arm64: KVM: Advertise SMCCC v1.1
+ arm64: KVM: Make PSCI_VERSION a fast path
+ arm/arm64: KVM: Turn kvm_psci_version into a static inline
+ arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support
+ arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling
+ firmware/psci: Expose PSCI conduit
+ firmware/psci: Expose SMCCC version through psci_ops
+ arm/arm64: smccc: Make function identifiers an unsigned quantity
+ arm/arm64: smccc: Implement SMCCC v1.1 inline primitive
+ arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support
+ arm64: Kill PSCI_GET_VERSION as a variant-2 workaround
+ mtd: cfi: convert inline functions to macros
+ mtd: nand: brcmnand: Disable prefetch by default
+ mtd: nand: Fix nand_do_read_oob() return value
+ mtd: nand: sunxi: Fix ECC strength choice
+ ubi: Fix race condition between ubi volume creation and udev
+ ubi: fastmap: Erase outdated anchor PEBs during attach
+ ubi: block: Fix locking for idr_alloc/idr_remove
+ ubifs: free the encrypted symlink target
+ nfs/pnfs: fix nfs_direct_req ref leak when i/o falls back to the mds
+ nfs41: do not return ENOMEM on LAYOUTUNAVAILABLE
+ NFS: Add a cond_resched() to nfs_commit_release_pages()
+ NFS: Fix nfsstat breakage due to LOOKUPP
+ NFS: commit direct writes even if they fail partially
+ NFS: reject request for id_legacy key without auxdata
+ NFS: Fix a race between mmap() and O_DIRECT
+ nfsd: Detect unhashed stids in nfsd4_verify_open_stid()
+ kernfs: fix regression in kernfs_fop_write caused by wrong type
+ ahci: Annotate PCI ids for mobile Intel chipsets as such
+ ahci: Add PCI ids for Intel Bay Trail, Cherry Trail and Apollo Lake AHCI
+ ahci: Add Intel Cannon Lake PCH-H PCI ID
+ crypto: hash - introduce crypto_hash_alg_has_setkey()
+ crypto: cryptd - pass through absence of ->setkey()
+ crypto: mcryptd - pass through absence of ->setkey()
+ crypto: poly1305 - remove ->setkey() method
+ crypto: hash - annotate algorithms taking optional key
+ crypto: hash - prevent using keyed hashes without setting key
+ media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
+ media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
+ media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
+ media: v4l2-compat-ioctl32.c: fix the indentation
+ media: v4l2-compat-ioctl32.c: move 'helper' functions to 
__get/put_v4l2_format32
+ media: v4l2-compat-ioctl32.c: avoid sizeof(type)
+ media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
+ media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
+ media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
+ media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
+ media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
+ media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
+ media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
+ crypto: caam - fix endless loop when DECO acquire fails
+ crypto: sha512-mb - initialize pending lengths correctly
+ crypto: talitos - fix Kernel Oops on hashing an empty file
+ arm: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
+ KVM: nVMX: Fix races when sending nested PI while dest enters/leaves L2
+ KVM: nVMX: Fix bug of injecting L2 exception into L1
+ KVM: PPC: Book3S HV: Make sure we don't re-enter guest without XIVE loaded
+ KVM: PPC: Book3S HV: Drop locks before reading guest memory
+ KVM: arm/arm64: Handle CPU_PM_ENTER_FAILED
+ KVM: PPC: Book3S PR: Fix broken select due to misspelling
+ ASoC: acpi: fix machine driver selection based on quirk
+ ASoC: rockchip: i2s: fix playback after runtime resume
+ ASoC: skl: Fix kernel warning due to zero NHTL entry
+ ASoC: compress: Correct handling of copy callback
+ watchdog: imx2_wdt: restore previous timeout after suspend+resume
+ afs: Add missing afs_put_cell()
+ afs: Need to clear responded flag in addr cursor
+ afs: Fix missing cursor clearance
+ afs: Fix server list handling
+ btrfs: Handle btrfs_set_extent_delalloc failure in fixup worker
+ Btrfs: raid56: iterate raid56 internal bio with bio_for_each_segment_all
+ kasan: don't emit builtin calls when sanitization is off
+ kasan: rework Kconfig settings
+ media: dvb_frontend: be sure to init dvb_frontend_handle_ioctl() return code
+ media: dvb-frontends: fix i2c access helpers for KASAN
+ media: dt-bindings/media/cec-gpio.txt: mention the CEC/HPD max voltages
+ media: ts2020: avoid integer overflows on 32 bit machines
+ media: vivid: fix module load error when enabling fb and no_error_inj=1
+ media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
+ fs/proc/kcore.c: use probe_kernel_read() instead of memcpy()
+ kernel/async.c: revert "async: simplify lowest_in_progress()"
+ kernel/relay.c: revert "kernel/relay.c: fix potential memory leak"
+ pipe: actually allow root to exceed the pipe buffer limits
+ pipe: fix off-by-one error when checking buffer limits
+ HID: quirks: Fix keyboard + touchpad on Toshiba Click Mini not working
+ Bluetooth: btsdio: Do not bind to non-removable BCM43341
+ Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"
+ Bluetooth: btusb: Restore QCA Rome suspend/resume fix with a "rewritten" 
version
+ ipmi: use dynamic memory for DMI driver override
+ signal/openrisc: Fix do_unaligned_access to send the proper signal
+ signal/sh: Ensure si_signo is initialized in do_divide_error
+ alpha: fix crash if pthread_create races with signal delivery
+ alpha: osf_sys.c: fix put_tv32 regression
+ alpha: Fix mixed up args in EXC macro in futex operations
+ alpha: fix reboot on Avanti platform
+ alpha: fix formating of stack content
+ xtensa: fix futex_atomic_cmpxchg_inatomic
+ EDAC, octeon: Fix an uninitialized variable warning
+ genirq: Make legacy autoprobing work again
+ pinctrl: intel: Initialize GPIO properly when used through irqchip
+ pinctrl: mcp23s08: fix irq setup order
+ pinctrl: sx150x: Unregister the pinctrl on release
+ pinctrl: sx150x: Register pinctrl before adding the gpiochip
+ pinctrl: sx150x: Add a static gpio/pinctrl pin range mapping
+ pktcdvd: Fix pkt_setup_dev() error path
+ pktcdvd: Fix a recently introduced NULL pointer dereference
+ blk-mq: quiesce queue before freeing queue
+ clocksource/drivers/stm32: Fix kernel panic with multiple timers
+ lib/ubsan.c: s/missaligned/misaligned/
+ lib/ubsan: add type mismatch handler for new GCC/Clang
+ objtool: Fix switch-table detection
+ arm64: dts: marvell: add Ethernet aliases
+ drm/i915: Avoid PPS HW/SW state mismatch due to rounding
+ ACPI: sbshc: remove raw pointer from printk() message
+ acpi, nfit: fix register dimm error handling
+ ovl: force r/o mount when index dir creation fails
+ ovl: fix failure to fsync lower dir
+ ovl: take mnt_want_write() for work/index dir setup
+ ovl: take mnt_want_write() for removing impure xattr
+ ovl: hash directory inodes for fsnotify
+ mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy
+ devpts: fix error handling in devpts_mntget()
+ ftrace: Remove incorrect setting of glob search field
+ scsi: core: Ensure that the SCSI error handler gets woken up
+ scsi: lpfc: Fix crash after bad bar setup on driver attachment
+ scsi: cxlflash: Reset command ioasc
+ rcu: Export init_rcu_head() and destroy_rcu_head() to GPL modules
+ Linux 4.15.4

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Seth Forshee (sforshee)

** Description changed:

  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 v4.15.4 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 v4.15.4 stable release shall be
  applied:
  
  watchdog: indydog: Add dependency on SGI_HAS_INDYDOG
  cifs: Fix missing put_xid in cifs_file_strict_mmap
  cifs: Fix autonegotiate security settings mismatch
  CIFS: zero sensitive data when freeing
  cpufreq: mediatek: add mediatek related projects into blacklist
  dmaengine: dmatest: fix container_of member in dmatest_callback
  ssb: Do not disable PCI host on non-Mips
  watchdog: gpio_wdt: set WDOG_HW_RUNNING in gpio_wdt_stop
  Revert "drm/i915: mark all device info struct with __initconst"
  sched/rt: Use container_of() to get root domain in rto_push_irq_work_func()
  sched/rt: Up the root domain ref count when passing it around via IPIs
  media: dvb-usb-v2: lmedm04: Improve logic checking of warm start
  media: dvb-usb-v2: lmedm04: move ts2020 attach to dm04_lme2510_tuner
  media: hdpvr: Fix an error handling path in hdpvr_probe()
  arm64: mm: Use non-global mappings for kernel space
  arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN
  arm64: mm: Move ASID from TTBR0 to TTBR1
  arm64: mm: Remove pre_ttbr0_update_workaround for Falkor erratum #E1003
  arm64: mm: Rename post_ttbr0_update_workaround
  arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN
  arm64: mm: Allocate ASIDs in pairs
  arm64: mm: Add arm64_kernel_unmapped_at_el0 helper
  arm64: mm: Invalidate both kernel and user ASIDs when performing TLBI
  arm64: entry: Add exception trampoline page for exceptions from EL0
  arm64: mm: Map entry trampoline into trampoline and kernel page tables
  arm64: entry: Explicitly pass exception level to kernel_ventry macro
  arm64: entry: Hook up entry trampoline to exception vectors
  arm64: erratum: Work around Falkor erratum #E1003 in trampoline code
  arm64: cpu_errata: Add Kryo to Falkor 1003 errata
  arm64: tls: Avoid unconditional zeroing of tpidrro_el0 for native tasks
  arm64: entry: Add fake CPU feature for unmapping the kernel at EL0
  arm64: kaslr: Put kernel vectors address in separate data page
  arm64: use RET instruction for exiting the trampoline
  arm64: Kconfig: Add CONFIG_UNMAP_KERNEL_AT_EL0
  arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry
  arm64: Take into account ID_AA64PFR0_EL1.CSV3
  arm64: capabilities: Handle duplicate entries for a capability
  arm64: mm: Introduce TTBR_ASID_MASK for getting at the ASID in the TTBR
  arm64: kpti: Fix the interaction between ASID switching and software PAN
  arm64: cputype: Add MIDR values for Cavium ThunderX2 CPUs
  arm64: Turn on KPTI only on CPUs that need it
  arm64: kpti: Make use of nG dependent on arm64_kernel_unmapped_at_el0()
  arm64: mm: Permit transitioning from Global to Non-Global without BBM
  arm64: kpti: Add ->enable callback to remap swapper using nG mappings
  arm64: Force KPTI to be disabled on Cavium ThunderX
  arm64: entry: Reword comment about post_ttbr_update_workaround
  arm64: idmap: Use "awx" flags for .idmap.text .pushsection directives
  perf: arm_spe: Fail device probe when arm64_kernel_unmapped_at_el0()
  arm64: barrier: Add CSDB macros to control data-value prediction
  arm64: Implement array_index_mask_nospec()
  arm64: Make USER_DS an inclusive limit
  arm64: Use pointer masking to limit uaccess speculation
  arm64: entry: Ensure branch through syscall table is bounded under speculation
  arm64: uaccess: Prevent speculative use of the current addr_limit
  arm64: uaccess: Don't bother eliding access_ok checks in __{get, put}_user
  arm64: uaccess: Mask __user pointers for __arch_{clear, copy_*}_user
  arm64: futex: Mask __user pointers prior to dereference
  arm64: cpufeature: __this_cpu_has_cap() shouldn't stop early
  arm64: Run enable method for errata work arounds on late CPUs
  arm64: cpufeature: Pass capability structure to ->enable callback
  drivers/firmware: Expose psci_get_version through psci_ops structure
  arm64: Move post_ttbr_update_workaround to C code
  arm64: Add skeleton to harden the branch predictor against aliasing attacks
  arm64: Move BP hardening to check_and_switch_context
  arm64: KVM: Use per-CPU vector when BP hardening is enabled
  arm64: entry: Apply BP hardening for high-priority synchronous exceptions
  arm64: entry: Apply BP hardening for suspicious interrupts from EL0
  arm64: cputype: Add missing MIDR values for Cortex-A72 and Cortex-A75
  arm64: Implement branch predictor hardening for affected Cortex-A CPUs
  arm64: Implement branch predictor hardening for Falkor
  arm64: Branch predictor hardening for Cavium ThunderX2
  arm64: KVM: Increment PC after handling an SMC trap
  arm/arm64: KVM: Consolidate the PSCI include files
  arm/arm64: KVM: Add PSCI_VERSION helper
  arm/arm64: KVM: Add smccc accessors to PSCI code
  arm/arm64: KVM: Implement PSCI 1.0 support
  arm/arm64: KVM: Advertise SMCCC v1.1
  arm64: KVM: Make PSCI_VERSION a fast path
  arm/arm64: KVM: Turn kvm_psci_version into a static inline
  arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support
  arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling
  firmware/psci: Expose PSCI conduit
  firmware/psci: Expose SMCCC version through psci_ops
  arm/arm64: smccc: Make function identifiers an unsigned quantity
  arm/arm64: smccc: Implement SMCCC v1.1 inline primitive
  arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support
  arm64: Kill PSCI_GET_VERSION as a variant-2 workaround
  mtd: cfi: convert inline functions to macros
  mtd: nand: brcmnand: Disable prefetch by default
  mtd: nand: Fix nand_do_read_oob() return value
  mtd: nand: sunxi: Fix ECC strength choice
  ubi: Fix race condition between ubi volume creation and udev
  ubi: fastmap: Erase outdated anchor PEBs during attach
  ubi: block: Fix locking for idr_alloc/idr_remove
  ubifs: free the encrypted symlink target
  nfs/pnfs: fix nfs_direct_req ref leak when i/o falls back to the mds
  nfs41: do not return ENOMEM on LAYOUTUNAVAILABLE
  NFS: Add a cond_resched() to nfs_commit_release_pages()
  NFS: Fix nfsstat breakage due to LOOKUPP
  NFS: commit direct writes even if they fail partially
  NFS: reject request for id_legacy key without auxdata
  NFS: Fix a race between mmap() and O_DIRECT
  nfsd: Detect unhashed stids in nfsd4_verify_open_stid()
  kernfs: fix regression in kernfs_fop_write caused by wrong type
  ahci: Annotate PCI ids for mobile Intel chipsets as such
  ahci: Add PCI ids for Intel Bay Trail, Cherry Trail and Apollo Lake AHCI
  ahci: Add Intel Cannon Lake PCH-H PCI ID
  crypto: hash - introduce crypto_hash_alg_has_setkey()
  crypto: cryptd - pass through absence of ->setkey()
  crypto: mcryptd - pass through absence of ->setkey()
  crypto: poly1305 - remove ->setkey() method
  crypto: hash - annotate algorithms taking optional key
  crypto: hash - prevent using keyed hashes without setting key
  media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
  media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
  media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
  media: v4l2-compat-ioctl32.c: fix the indentation
  media: v4l2-compat-ioctl32.c: move 'helper' functions to 
__get/put_v4l2_format32
  media: v4l2-compat-ioctl32.c: avoid sizeof(type)
  media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
  media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
  media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
  media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
  media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
  media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
  media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
  crypto: caam - fix endless loop when DECO acquire fails
  crypto: sha512-mb - initialize pending lengths correctly
  crypto: talitos - fix Kernel Oops on hashing an empty file
  arm: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
  KVM: nVMX: Fix races when sending nested PI while dest enters/leaves L2
  KVM: nVMX: Fix bug of injecting L2 exception into L1
  KVM: PPC: Book3S HV: Make sure we don't re-enter guest without XIVE loaded
  KVM: PPC: Book3S HV: Drop locks before reading guest memory
  KVM: arm/arm64: Handle CPU_PM_ENTER_FAILED
  KVM: PPC: Book3S PR: Fix broken select due to misspelling
  ASoC: acpi: fix machine driver selection based on quirk
  ASoC: rockchip: i2s: fix playback after runtime resume
  ASoC: skl: Fix kernel warning due to zero NHTL entry
  ASoC: compress: Correct handling of copy callback
  watchdog: imx2_wdt: restore previous timeout after suspend+resume
  afs: Add missing afs_put_cell()
  afs: Need to clear responded flag in addr cursor
  afs: Fix missing cursor clearance
  afs: Fix server list handling
  btrfs: Handle btrfs_set_extent_delalloc failure in fixup worker
  Btrfs: raid56: iterate raid56 internal bio with bio_for_each_segment_all
  kasan: don't emit builtin calls when sanitization is off
  kasan: rework Kconfig settings
  media: dvb_frontend: be sure to init dvb_frontend_handle_ioctl() return code
  media: dvb-frontends: fix i2c access helpers for KASAN
  media: dt-bindings/media/cec-gpio.txt: mention the CEC/HPD max voltages
  media: ts2020: avoid integer overflows on 32 bit machines
  media: vivid: fix module load error when enabling fb and no_error_inj=1
  media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
  fs/proc/kcore.c: use probe_kernel_read() instead of memcpy()
  kernel/async.c: revert "async: simplify lowest_in_progress()"
  kernel/relay.c: revert "kernel/relay.c: fix potential memory leak"
  pipe: actually allow root to exceed the pipe buffer limits
  pipe: fix off-by-one error when checking buffer limits
  HID: quirks: Fix keyboard + touchpad on Toshiba Click Mini not working
  Bluetooth: btsdio: Do not bind to non-removable BCM43341
- Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"
- Bluetooth: btusb: Restore QCA Rome suspend/resume fix with a "rewritten" 
version
  ipmi: use dynamic memory for DMI driver override
  signal/openrisc: Fix do_unaligned_access to send the proper signal
  signal/sh: Ensure si_signo is initialized in do_divide_error
  alpha: fix crash if pthread_create races with signal delivery
  alpha: osf_sys.c: fix put_tv32 regression
  alpha: Fix mixed up args in EXC macro in futex operations
  alpha: fix reboot on Avanti platform
  alpha: fix formating of stack content
  xtensa: fix futex_atomic_cmpxchg_inatomic
  EDAC, octeon: Fix an uninitialized variable warning
  genirq: Make legacy autoprobing work again
  pinctrl: intel: Initialize GPIO properly when used through irqchip
  pinctrl: mcp23s08: fix irq setup order
  pinctrl: sx150x: Unregister the pinctrl on release
  pinctrl: sx150x: Register pinctrl before adding the gpiochip
  pinctrl: sx150x: Add a static gpio/pinctrl pin range mapping
  pktcdvd: Fix pkt_setup_dev() error path
  pktcdvd: Fix a recently introduced NULL pointer dereference
  blk-mq: quiesce queue before freeing queue
  clocksource/drivers/stm32: Fix kernel panic with multiple timers
  lib/ubsan.c: s/missaligned/misaligned/
  lib/ubsan: add type mismatch handler for new GCC/Clang
  objtool: Fix switch-table detection
  arm64: dts: marvell: add Ethernet aliases
  drm/i915: Avoid PPS HW/SW state mismatch due to rounding
  ACPI: sbshc: remove raw pointer from printk() message
  acpi, nfit: fix register dimm error handling
  ovl: force r/o mount when index dir creation fails
  ovl: fix failure to fsync lower dir
  ovl: take mnt_want_write() for work/index dir setup
  ovl: take mnt_want_write() for removing impure xattr
  ovl: hash directory inodes for fsnotify
  mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy
  devpts: fix error handling in devpts_mntget()
  ftrace: Remove incorrect setting of glob search field
  scsi: core: Ensure that the SCSI error handler gets woken up
  scsi: lpfc: Fix crash after bad bar setup on driver attachment
  scsi: cxlflash: Reset command ioasc
  rcu: Export init_rcu_head() and destroy_rcu_head() to GPL modules
  Linux 4.15.4
+ 
+        The following patches from the v4.15.4 stable release had already
+ been applied:
+ 
+ Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"
+ Bluetooth: btusb: Restore QCA Rome suspend/resume fix with a "rewritten" 
version

** Changed in: linux (Ubuntu)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1751064

Title:
  Bionic update to v4.15.4 stable release

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