Bionic update to v4.14.13 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 v4.14.13 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 v4.14.13 stable release shall be applied:

kernel/acct.c: fix the acct->needcheck check in check_free_space()
mm/mprotect: add a cond_resched() inside change_pmd_range()
mm/sparse.c: wrong allocation for mem_section
userfaultfd: clear the vma->vm_userfaultfd_ctx if UFFD_EVENT_FORK fails
btrfs: fix refcount_t usage when deleting btrfs_delayed_nodes
efi/capsule-loader: Reinstate virtual capsule mapping
crypto: n2 - cure use after free
crypto: chacha20poly1305 - validate the digest size
crypto: pcrypt - fix freeing pcrypt instances
crypto: chelsio - select CRYPTO_GF128MUL
drm/i915: Disable DC states around GMBUS on GLK
drm/i915: Apply Display WA #1183 on skl, kbl, and cfl
sunxi-rsb: Include OF based modalias in device uevent
fscache: Fix the default for fscache_maybe_release_page()
x86 / CPU: Avoid unnecessary IPIs in arch_freq_get_on_cpu()
x86 / CPU: Always show current CPU frequency in /proc/cpuinfo
kernel/signal.c: protect the traced SIGNAL_UNKILLABLE tasks from SIGKILL
kernel/signal.c: protect the SIGNAL_UNKILLABLE tasks from !sig_kernel_only() signals
kernel/signal.c: remove the no longer needed SIGNAL_UNKILLABLE check in complete_signal()
iommu/arm-smmu-v3: Don't free page table ops twice
iommu/arm-smmu-v3: Cope with duplicated Stream IDs
ARC: uaccess: dont use "l" gcc inline asm constraint modifier
powerpc/mm: Fix SEGV on mapped region to return SEGV_ACCERR
x86/microcode/AMD: Add support for fam17h microcode loading
apparmor: fix regression in mount mediation when feature set is pinned
parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit SMP kernel
parisc: qemu idle sleep support
mtd: nand: pxa3xx: Fix READOOB implementation
KVM: s390: fix cmma migration for multiple memory slots
KVM: s390: prevent buffer overrun on memory hotplug during migration
Linux 4.14.13

       The following patches from the v4.14.13 stable release have already been applied:

x86/mm: Set MODULES_END to 0xffffffffff000000
x86/mm: Map cpu_entry_area at the same place on 4/5 level
x86/kaslr: Fix the vaddr_end mess
x86/events/intel/ds: Use the proper cache flush method for mapping ds buffers
x86/tlb: Drop the _GPL from the cpu_tlbstate export
x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
Input: elantech - add new icbody type 15