Bionic update to v4.14.15 stable release

[Seth Forshee]

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 v4.14.15 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 v4.14.15 stable release shall be applied:

tools/objtool/Makefile: don't assume sync-check.sh is executable
drm/nouveau/disp/gf119: add missing drive vfunc ptr
objtool: Fix seg fault with clang-compiled objects
objtool: Fix Clang enum conversion warning
objtool: Fix seg fault caused by missing parameter
powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper
powerpc/64: Add macros for annotating the destination of rfid/hrfid
powerpc/64s: Simple RFI macro conversions
powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL
powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL
powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL
powerpc/64s: Add support for RFI flush of L1-D cache
powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti
powerpc/pseries: Query hypervisor for RFI flush settings
powerpc/powernv: Check device-tree for RFI flush settings
futex: Avoid violating the 10th rule of futex
futex: Prevent overflow by strengthen input validation
ALSA: seq: Make ioctls race-free
ALSA: pcm: Remove yet superfluous WARN_ON()
ALSA: hda - Apply headphone noise quirk for another Dell XPS 13 variant
ALSA: hda - Apply the existing quirk to iMac 14,1
IB/hfi1: Prevent a NULL dereference
RDMA/mlx5: Fix out-of-bound access while querying AH
timers: Unconditionally check deferrable base
af_key: fix buffer overread in verify_address_len()
af_key: fix buffer overread in parse_exthdrs()
iser-target: Fix possible use-after-free in connection establishment error
delayacct: Account blkio completion on the correct task
objtool: Fix seg fault with gold linker
mmc: sdhci-esdhc-imx: Fix i.MX53 eSDHCv3 clock
x86/kasan: Panic if there is not enough memory to boot
x86/retpoline: Fill RSB on context switch for affected CPUs
x86/retpoline: Add LFENCE to the retpoline/RSB filling RSB macros
objtool: Improve error message for bad file argument
x86/cpufeature: Move processor tracing out of scattered features
module: Add retpoline tag to VERMAGIC
x86/mm/pkeys: Fix fill_sig_info_pkey
x86/idt: Mark IDT tables __initconst
x86/tsc: Future-proof native_calibrate_tsc()
x86/tsc: Fix erroneous TSC rate on Skylake Xeon
pipe: avoid round_pipe_size() nr_pages overflow on 32-bit
x86/apic/vector: Fix off by one in error path
x86/mm: Clean up register saving in the __enc_copy() assembly code
x86/mm: Use a struct to reduce parameters for SME PGD mapping
x86/mm: Centralize PMD flags in sme_encrypt_kernel()
x86/mm: Prepare sme_encrypt_kernel() for PAGE aligned encryption
ARM: OMAP3: hwmod_data: add missing module_offs for MMC3
x86/mm: Encrypt the initrd earlier for BSP microcode update
Input: ALPS - fix multi-touch decoding on SS4 plus touchpads
Input: synaptics-rmi4 - prevent UAF reported by KASAN
Input: 88pm860x-ts - fix child-node lookup
Input: twl6040-vibra - fix child-node lookup
Input: twl4030-vibra - fix sibling-node lookup
tracing: Fix converting enum's from the map in trace_event_eval_update()
phy: work around 'phys' references to usb-nop-xceiv devices
ARM64: dts: marvell: armada-cp110: Fix clock resources for various node
ARM: sunxi_defconfig: Enable CMA
ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7
can: peak: fix potential bug in packet fragmentation
can: af_can: can_rcv(): replace WARN_ONCE by pr_warn_once
can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once
i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA
scripts/gdb/linux/tasks.py: fix get_thread_info
proc: fix coredump vs read /proc/*/stat race
libata: apply MAX_SEC_1024 to all LITEON EP1 series devices
scsi: libsas: Disable asynchronous aborts for SATA devices
workqueue: avoid hard lockups in show_workqueue_state()
drm/vmwgfx: fix memory corruption with legacy/sou connectors
dm btree: fix serious bug in btree_split_beneath()
dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6
dm integrity: don't store cipher request on the stack
dm crypt: fix crash by adding missing check for auth key size
dm crypt: wipe kernel key copy after IV initialization
dm crypt: fix error return code in crypt_ctr()
x86: Use __nostackprotect for sme_encrypt_kernel
alpha/PCI: Fix noname IRQ level detection
MIPS: CM: Drop WARN_ON(vp != 0)
KVM: arm/arm64: Check pagesize when allocating a hugepage at Stage 2
arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
x86/mce: Make machine check speculation protected
retpoline: Introduce start/end markers of indirect thunk
kprobes/x86: Blacklist indirect thunk functions for kprobes
kprobes/x86: Disable optimizing on the function jumps to indirect thunk
x86/pti: Document fix wrong index
x86/retpoline: Optimize inline assembler for vmexit_fill_RSB
x86/mm: Rework wbinvd, hlt operation in stop_this_cpu()
mm, page_vma_mapped: Drop faulty pointer arithmetics in check_pte()
net: mvpp2: do not disable GMAC padding
MIPS: AR7: ensure the port type's FCR value is used
Linux 4.14.15

       The following patches from the v4.14.15 stable release had already been applied:

x86/intel_rdt/cqm: Prevent use after free