linux 4.13.0-37.42 source package in Ubuntu

Changelog

linux (4.13.0-37.42) artful; urgency=medium

  * linux: 4.13.0-37.42 -proposed tracker (LP: #1751798)

  * CVE-2017-5715 // CVE-2017-5753 // CVE-2017-5754
    - arm64: Add ASM_BUG()
    - arm64: consistently use bl for C exception entry
    - arm64: move non-entry code out of .entry.text
    - arm64: unwind: avoid percpu indirection for irq stack
    - arm64: unwind: disregard frame.sp when validating frame pointer
    - arm64: mm: Fix set_memory_valid() declaration
    - arm64: Convert __inval_cache_range() to area-based
    - arm64: Expose DC CVAP to userspace
    - arm64: Handle trapped DC CVAP
    - arm64: Implement pmem API support
    - arm64: uaccess: Implement *_flushcache variants
    - arm64/vdso: Support mremap() for vDSO
    - arm64: unwind: reference pt_regs via embedded stack frame
    - arm64: unwind: remove sp from struct stackframe
    - arm64: uaccess: Add the uaccess_flushcache.c file
    - arm64: fix pmem interface definition
    - arm64: compat: Remove leftover variable declaration
    - fork: allow arch-override of VMAP stack alignment
    - arm64: kernel: remove {THREAD,IRQ_STACK}_START_SP
    - arm64: factor out PAGE_* and CONT_* definitions
    - arm64: clean up THREAD_* definitions
    - arm64: clean up irq stack definitions
    - arm64: move SEGMENT_ALIGN to <asm/memory.h>
    - efi/arm64: add EFI_KIMG_ALIGN
    - arm64: factor out entry stack manipulation
    - arm64: assembler: allow adr_this_cpu to use the stack pointer
    - arm64: use an irq stack pointer
    - arm64: add basic VMAP_STACK support
    - arm64: add on_accessible_stack()
    - arm64: add VMAP_STACK overflow detection
    - arm64: Convert pte handling from inline asm to using (cmp)xchg
    - kvm: arm64: Convert kvm_set_s2pte_readonly() from inline asm to cmpxchg()
    - arm64: Move PTE_RDONLY bit handling out of set_pte_at()
    - arm64: Ignore hardware dirty bit updates in ptep_set_wrprotect()
    - arm64: Remove the !CONFIG_ARM64_HW_AFDBM alternative code paths
    - arm64: introduce separated bits for mm_context_t flags
    - arm64: cleanup {COMPAT_,}SET_PERSONALITY() macro
    - KVM: arm/arm64: Fix guest external abort matching
    - KVM: arm/arm64: vgic: constify seq_operations and file_operations
    - KVM: arm/arm64: vITS: Drop its_ite->lpi field
    - KVM: arm/arm64: Extract GICv3 max APRn index calculation
    - KVM: arm/arm64: Support uaccess of GICC_APRn
    - arm64: Use larger stacks when KASAN is selected
    - arm64: Define cputype macros for Falkor CPU
    - arm64: SW PAN: Point saved ttbr0 at the zero page when switching to init_mm
    - arm64: SW PAN: Update saved ttbr0 value on enter_lazy_tlb
    - x86/syscalls: Check address limit on user-mode return
    - arm/syscalls: Check address limit on user-mode return
    - arm64/syscalls: Check address limit on user-mode return
    - Revert "arm/syscalls: Check address limit on user-mode return"
    - syscalls: Use CHECK_DATA_CORRUPTION for addr_limit_user_check
    - arm/syscalls: Optimize address limit check
    - arm64/syscalls: Move address limit check in loop
    - futex: Remove duplicated code and fix undefined behaviour
    - arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
    - arm64: syscallno is secretly an int, make it official
    - arm64: move TASK_* definitions to <asm/processor.h>
    - 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
    - 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
    - [Config] UNMAP_KERNEL_AT_EL0=y && HARDEN_BRANCH_PREDICTOR=y
    - SAUCE: arm64: __idmap_cpu_set_reserved_ttbr1: fix !ARM64_PA_BITS_52 logic
    - arm64: Add missing Falkor part number for branch predictor hardening
    - arm64: mm: fix thinko in non-global page table attribute check

  * linux-image-4.13.0-26-generic / linux-image-extra-4.13.0-26-generic fail to
    boot (LP: #1742721)
    - staging: sm750fb: Fix parameter mistake in poke32

 -- Kleber Sacilotto de Souza <email address hidden>  Wed, 07 Mar 2018 12:20:00 +0100