Package "linux-hwe"

  linux-hwe (4.15.0-50.54~16.04.1) xenial; urgency=medium

  [ Ubuntu: 4.15.0-50.54 ]

  * CVE-2018-12126 // CVE-2018-12127 // CVE-2018-12130
    - Documentation/l1tf: Fix small spelling typo
    - x86/cpu: Sanitize FAM6_ATOM naming
    - kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
    - locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a
      new <linux/bits.h> file
    - tools include: Adopt linux/bits.h
    - x86/msr-index: Cleanup bit defines
    - x86/speculation: Consolidate CPU whitelists
    - x86/speculation/mds: Add basic bug infrastructure for MDS
    - x86/speculation/mds: Add BUG_MSBDS_ONLY
    - x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
    - x86/speculation/mds: Add mds_clear_cpu_buffers()
    - x86/speculation/mds: Clear CPU buffers on exit to user
    - x86/kvm/vmx: Add MDS protection when L1D Flush is not active
    - x86/speculation/mds: Conditionally clear CPU buffers on idle entry
    - x86/speculation/mds: Add mitigation control for MDS
    - x86/speculation/mds: Add sysfs reporting for MDS
    - x86/speculation/mds: Add mitigation mode VMWERV
    - Documentation: Move L1TF to separate directory
    - Documentation: Add MDS vulnerability documentation
    - x86/speculation/mds: Add mds=full,nosmt cmdline option
    - x86/speculation: Move arch_smt_update() call to after mitigation decisions
    - x86/speculation/mds: Add SMT warning message
    - x86/speculation/mds: Fix comment
    - x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
    - x86/speculation/mds: Add 'mitigations=' support for MDS
  * CVE-2017-5715 // CVE-2017-5753
    - s390/speculation: Support 'mitigations=' cmdline option
  * CVE-2017-5715 // CVE-2017-5753 // CVE-2017-5754 // CVE-2018-3639
    - powerpc/speculation: Support 'mitigations=' cmdline option
  * CVE-2017-5715 // CVE-2017-5754 // CVE-2018-3620 // CVE-2018-3639 //
    CVE-2018-3646
    - cpu/speculation: Add 'mitigations=' cmdline option
    - x86/speculation: Support 'mitigations=' cmdline option
  * Packaging resync (LP: #1786013)
    - [Packaging] resync git-ubuntu-log

  [ Ubuntu: 4.15.0-49.53 ]

  * linux: 4.15.0-49.53 -proposed tracker (LP: #1826358)
  * bionic: fork out linux-snapdragon into its own topic kernel (LP: #1820868)
    - [Packaging] arm64: Drop snapdragon from kernel-versions

  linux-hwe (4.15.0-48.51~16.04.1) xenial; urgency=medium

  * linux-hwe: 4.15.0-48.51~16.04.1 -proposed tracker (LP: #1822819)

  * Packaging resync (LP: #1786013)
    - [Packaging] resync git-ubuntu-log
    - [Packaging] update helper scripts

  [ Ubuntu: 4.15.0-48.51 ]

  * linux: 4.15.0-48.51 -proposed tracker (LP: #1822820)
  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts
    - [Packaging] resync retpoline extraction
  * 3b080b2564287be91605bfd1d5ee985696e61d3c in ubuntu_btrfs_kernel_fixes
    triggers system hang on i386 (LP: #1812845)
    - btrfs: raid56: properly unmap parity page in finish_parity_scrub()
  * [P9][LTCTest][Opal][FW910] cpupower monitor shows multiple stop Idle_Stats
    (LP: #1719545)
    - cpupower : Fix header name to read idle state name
  * [amdgpu] screen corruption when using touchpad (LP: #1818617)
    - drm/amdgpu/gmc: steal the appropriate amount of vram for fw hand-over (v3)
    - drm/amdgpu: Free VGA stolen memory as soon as possible.
  * [SRU][B/C/OEM]IOMMU: add kernel dma protection (LP: #1820153)
    - ACPICA: AML parser: attempt to continue loading table after error
    - ACPI / property: Allow multiple property compatible _DSD entries
    - PCI / ACPI: Identify untrusted PCI devices
    - iommu/vt-d: Force IOMMU on for platform opt in hint
    - iommu/vt-d: Do not enable ATS for untrusted devices
    - thunderbolt: Export IOMMU based DMA protection support to userspace
    - iommu/vt-d: Disable ATS support on untrusted devices
  * Add basic support to NVLink2 passthrough (LP: #1819989)
    - powerpc/powernv/npu: Do not try invalidating 32bit table when 64bit table is
      enabled
    - powerpc/powernv: call OPAL_QUIESCE before OPAL_SIGNAL_SYSTEM_RESET
    - powerpc/powernv: Export opal_check_token symbol
    - powerpc/powernv: Make possible for user to force a full ipl cec reboot
    - powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn
    - powerpc/powernv: Move npu struct from pnv_phb to pci_controller
    - powerpc/powernv/npu: Move OPAL calls away from context manipulation
    - powerpc/pseries/iommu: Use memory@ nodes in max RAM address calculation
    - powerpc/pseries/npu: Enable platform support
    - powerpc/pseries: Remove IOMMU API support for non-LPAR systems
    - powerpc/powernv/npu: Check mmio_atsd array bounds when populating
    - powerpc/powernv/npu: Fault user page into the hypervisor's pagetable
  * Huawei Hi1822 NIC has poor performance (LP: #1820187)
    - net-next: hinic: fix a problem in free_tx_poll()
    - hinic: remove ndo_poll_controller
    - net-next/hinic: add checksum offload and TSO support
    - hinic: Fix l4_type parameter in hinic_task_set_tunnel_l4
    - net-next/hinic:replace multiply and division operators
    - net-next/hinic:add rx checksum offload for HiNIC
    - net-next/hinic:fix a bug in set mac address
    - net-next/hinic: fix a bug in rx data flow
    - net: hinic: fix null pointer dereference on pointer hwdev
    - hinic: optmize rx refill buffer mechanism
    - net-next/hinic:add shutdown callback
    - net-next/hinic: replace disable_irq_nosync/enable_irq
  * [CONFIG] please enable highdpi font FONT_TER16x32 (LP: #1819881)
    - Fonts: New Terminus large console font
    - [Config]: enable highdpi Terminus 16x32 font support
  * [19.04 FEAT] qeth: Enhanced link speed - kernel part (LP: #1814892)
    - s390/qeth: report 25Gbit link speed
  * CVE-2017-5754
    - x86/nmi: Fix NMI uaccess race against CR3 switching
    - x86/mm: Fix documentation of module mapping range with 4-level paging
    - x86/pti: Enable global pages for shared areas
    - x86/pti: Never implicitly clear _PAGE_GLOBAL for kernel image
    - x86/pti: Leave kernel text global for !PCID
    - x86/pti: Fix boot problems from Global-bit setting
    - x86/pti: Fix boot warning from Global-bit setting
    - x86/pti: Reduce amount of kernel text allowed to be Global
    - x86/pti: Disallow global kernel text with RANDSTRUCT
    - x86/entry/32: Add explicit 'l' instruction suffix
    - x86/asm-offsets: Move TSS_sp0 and TSS_sp1 to asm-offsets.c
    - x86/entry/32: Rename TSS_sysenter_sp0 to TSS_entry2task_stack
    - x86/entry/32: Load task stack from x86_tss.sp1 in SYSENTER handler
    - x86/entry/32: Put ESPFIX code into a macro
    - x86/entry/32: Unshare NMI return path
    - x86/entry/32: Split off return-to-kernel path
    - x86/entry/32: Enter the kernel via trampoline stack
    - x86/entry/32: Leave the kernel via trampoline stack
    - x86/entry/32: Introduce SAVE_ALL_NMI and RESTORE_ALL_NMI
    - x86/entry/32: Handle Entry from Kernel-Mode on Entry-Stack
    - x86/entry/32: Simplify debug entry point
    - x86/entry/32: Add PTI cr3 switch to non-NMI entry/exit points
    - x86/entry/32: Add PTI CR3 switches to NMI handler code
    - x86/entry: Rename update_sp0 to update_task_stack
    - x86/pgtable: Rename pti_set_user_pgd() to pti_set_user_pgtbl()
    - x86/pgtable/pae: Unshare kernel PMDs when PTI is enabled
    - x86/pgtable/32: Allocate 8k page-tables when PTI is enabled
    - x86/pgtable: Move pgdp kernel/user conversion functions to pgtable.h
    - x86/pgtable: Move pti_set_user_pgtbl() to pgtable.h
    - x86/pgtable: Move two more functions from pgtable_64.h to pgtable.h
    - x86/mm/pae: Populate valid user PGD entries
    - x86/mm/pae: Populate the user page-table with user pgd's
    - x86/mm/pti: Add an overflow check to pti_clone_pmds()
    - x86/mm/pti: Define X86_CR3_PTI_PCID_USER_BIT on x86_32
    - x86/mm/pti: Clone CPU_ENTRY_AREA on PMD level on x86_32
    - x86/mm/pti: Make pti_clone_kernel_text() compile on 32 bit
    - x86/mm/pti: Keep permissions when cloning kernel text in
      pti_clone_kernel_text()
    - x86/mm/pti: Introduce pti_finalize()
    - x86/mm/pti: Clone entry-text again in pti_finalize()
    - x86/mm/dump_pagetables: Define INIT_PGD
    - x86/pgtable/pae: Use separate kernel PMDs for user page-table
    - x86/ldt: Reserve address-space range on 32 bit for

  linux-hwe (4.15.0-47.50~16.04.1) xenial; urgency=medium

  * linux-hwe: 4.15.0-47.50~16.04.1 -proposed tracker (LP: #1819715)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts
    - [Packaging] update update.conf

  * Strip specific changes from update-from-*master (LP: #1817734)
    - Packaging: Introduce copy-files and local-mangle
    - Packaging: Make update-from-*master call copy-files

  [ Ubuntu: 4.15.0-47.50 ]

  * linux: 4.15.0-47.50 -proposed tracker (LP: #1819716)
  * Packaging resync (LP: #1786013)
    - [Packaging] resync getabis
    - [Packaging] update helper scripts
    - [Packaging] resync retpoline extraction
  * C++ demangling support missing from perf (LP: #1396654)
    - [Packaging] fix a mistype
  * arm-smmu-v3 arm-smmu-v3.3.auto: CMD_SYNC timeout (LP: #1818162)
    - iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout
  * Crash in nvme_irq_check() when using threaded interrupts (LP: #1818747)
    - nvme-pci: fix out of bounds access in nvme_cqe_pending
  * CVE-2019-9213
    - mm: enforce min addr even if capable() in expand_downwards()
  * CVE-2019-3460
    - Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt
  * amdgpu with mst WARNING on blanking (LP: #1814308)
    - drm/amd/display: Don't use dc_link in link_encoder
    - drm/amd/display: Move wait for hpd ready out from edp power control.
    - drm/amd/display: eDP sequence BL off first then DP blank.
    - drm/amd/display: Fix unused variable compilation error
    - drm/amd/display: Fix warning about misaligned code
    - drm/amd/display: Fix MST dp_blank REG_WAIT timeout
  * tun/tap: unable to manage carrier state from userland (LP: #1806392)
    - tun: implement carrier change
  * CVE-2019-8980
    - exec: Fix mem leak in kernel_read_file
  * raw_skew in timer from the ubuntu_kernel_selftests failed on Bionic
    (LP: #1811194)
    - selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock
      adjustments are in progress
  * [Packaging] Allow overlay of config annotations (LP: #1752072)
    - [Packaging] config-check: Add an include directive
  * CVE-2019-7308
    - bpf: move {prev_,}insn_idx into verifier env
    - bpf: move tmp variable into ax register in interpreter
    - bpf: enable access to ax register also from verifier rewrite
    - bpf: restrict map value pointer arithmetic for unprivileged
    - bpf: restrict stack pointer arithmetic for unprivileged
    - bpf: restrict unknown scalars of mixed signed bounds for unprivileged
    - bpf: fix check_map_access smin_value test when pointer contains offset
    - bpf: prevent out of bounds speculation on pointer arithmetic
    - bpf: fix sanitation of alu op with pointer / scalar type from different
      paths
    - bpf: add various test cases to selftests
  * CVE-2017-5753
    - bpf: properly enforce index mask to prevent out-of-bounds speculation
    - bpf: fix inner map masking to prevent oob under speculation
  * BPF: kernel pointer leak to unprivileged userspace (LP: #1815259)
    - bpf/verifier: disallow pointer subtraction
  * squashfs hardening (LP: #1816756)
    - squashfs: more metadata hardening
    - squashfs metadata 2: electric boogaloo
    - squashfs: more metadata hardening
    - Squashfs: Compute expected length from inode size rather than block length
  * efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted (LP: #1814982)
    - efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted
  * Update ENA driver to version 2.0.3K (LP: #1816806)
    - net: ena: update driver version from 2.0.2 to 2.0.3
    - net: ena: fix race between link up and device initalization
    - net: ena: fix crash during failed resume from hibernation
  * ipset kernel error: 4.15.0-43-generic (LP: #1811394)
    - netfilter: ipset: Fix wraparound in hash:*net* types
  * Silent "Unknown key" message when pressing keyboard backlight hotkey
    (LP: #1817063)
    - platform/x86: dell-wmi: Ignore new keyboard backlight change event
  * CVE-2018-18021
    - arm64: KVM: Tighten guest core register access from userspace
    - KVM: arm/arm64: Introduce vcpu_el1_is_32bit
    - arm64: KVM: Sanitize PSTATE.M when being set from userspace
  * CVE-2018-14678
    - x86/entry/64: Remove %ebx handling from error_entry/exit
  * CVE-2018-19824
    - ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c
  * CVE-2019-3459
    - Bluetooth: Verify that l2cap_get_conf_opt provides large enough buffer
  * Bionic update: upstream stable patchset 2019-02-08 (LP: #1815234)
    - fork: unconditionally clear stack on fork
    - spi: spi-s3c64xx: Fix system resume support
    - Input: elan_i2c - add ACPI ID for lenovo ideapad 330
    - Input: i8042 - add Lenovo LaVie Z to the i8042 reset list
    - Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST
    - kvm, mm: account shadow page tables to kmemcg
    - delayacct: fix crash in delayacct_blkio_end() after delayacct init failure
    - tracing: Fix double free of event_trigger_data
    - tracing: Fix possible double free in event_enable_trigger_func()
    - kthread, tracing: Don't expose half-written comm when creating kthreads
    - tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure
    - tracing: Quiet gcc warning about maybe unused link variable
    - arm64: fix vmemmap BUILD_BUG_ON() triggering on !vmemmap setups
    - mlxsw: spectrum_switchdev: Fix port_vlan refcounting
    - kcov: ensure irq code sees a valid area
    - xen/netfront: raise max number of slots in xennet_get_responses()
    - skip LAYOUTRETURN if layout is invalid
    - ALSA: emu10k1: add error handling for snd_ctl_add
    - ALSA: fm801: add error handling for snd_ctl_add
    - NFSv4.1: Fix the client behaviour on NFS4ERR_SEQ_FALSE_RETRY
    - nfsd: fix potential use-after-free in nfsd4_decode_getdeviceinfo
    - vfio: platform: Fix reset module leak in error path
    - vfio/mdev: Check globally for duplicate devices
    - vfio/type1: Fix task tracking

  linux-hwe (4.15.0-46.49~16.04.1) xenial; urgency=medium

  * linux-hwe: 4.15.0-46.49~16.04.1 -proposed tracker (LP: #1814745)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  [ Ubuntu: 4.15.0-46.49 ]

  * linux: 4.15.0-46.49 -proposed tracker (LP: #1814726)
  * mprotect fails on ext4 with dax (LP: #1799237)
    - x86/speculation/l1tf: Exempt zeroed PTEs from inversion
  * kernel BUG at /build/linux-vxxS7y/linux-4.15.0/mm/slub.c:296! (LP: #1812086)
    - iscsi target: fix session creation failure handling
    - scsi: iscsi: target: Set conn->sess to NULL when iscsi_login_set_conn_values
      fails
    - scsi: iscsi: target: Fix conn_ops double free
  * user_copy in user from ubuntu_kernel_selftests failed on KVM kernel
    (LP: #1812198)
    - selftests: user: return Kselftest Skip code for skipped tests
    - selftests: kselftest: change KSFT_SKIP=4 instead of KSFT_PASS
    - selftests: kselftest: Remove outdated comment
  * RTL8822BE WiFi Disabled in Kernel 4.18.0-12 (LP: #1806472)
    - SAUCE: staging: rtlwifi: allow RTLWIFI_DEBUG_ST to be disabled
    - [Config] CONFIG_RTLWIFI_DEBUG_ST=n
    - SAUCE: Add r8822be to signature inclusion list
  * kernel oops in bcache module (LP: #1793901)
    - SAUCE: bcache: never writeback a discard operation
  * CVE-2018-18397
    - userfaultfd: use ENOENT instead of EFAULT if the atomic copy user fails
    - userfaultfd: shmem: allocate anonymous memory for MAP_PRIVATE shmem
    - userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas
    - userfaultfd: shmem: add i_size checks
    - userfaultfd: shmem: UFFDIO_COPY: set the page dirty if VM_WRITE is not set
  * Ignore "incomplete report" from Elan touchpanels (LP: #1813733)
    - HID: i2c-hid: Ignore input report if there's no data present on Elan
      touchpanels
  * Vsock connect fails with ENODEV for large CID (LP: #1813934)
    - vhost/vsock: fix vhost vsock cid hashing inconsistent
  * SRU: Fix thinkpad 11e 3rd boot hang (LP: #1804604)
    - ACPI / LPSS: Force LPSS quirks on boot
  * Bionic update: upstream stable patchset 2019-01-17 (LP: #1812229)
    - scsi: sd_zbc: Fix variable type and bogus comment
    - KVM/Eventfd: Avoid crash when assign and deassign specific eventfd in
      parallel.
    - x86/apm: Don't access __preempt_count with zeroed fs
    - x86/events/intel/ds: Fix bts_interrupt_threshold alignment
    - x86/MCE: Remove min interval polling limitation
    - fat: fix memory allocation failure handling of match_strdup()
    - ALSA: hda/realtek - Add Panasonic CF-SZ6 headset jack quirk
    - ARCv2: [plat-hsdk]: Save accl reg pair by default
    - ARC: Fix CONFIG_SWAP
    - ARC: configs: Remove CONFIG_INITRAMFS_SOURCE from defconfigs
    - ARC: mm: allow mprotect to make stack mappings executable
    - mm: memcg: fix use after free in mem_cgroup_iter()
    - mm/huge_memory.c: fix data loss when splitting a file pmd
    - cpufreq: intel_pstate: Register when ACPI PCCH is present
    - vfio/pci: Fix potential Spectre v1
    - stop_machine: Disable preemption when waking two stopper threads
    - drm/i915: Fix hotplug irq ack on i965/g4x
    - drm/nouveau: Use drm_connector_list_iter_* for iterating connectors
    - drm/nouveau: Avoid looping through fake MST connectors
    - gen_stats: Fix netlink stats dumping in the presence of padding
    - ipv4: Return EINVAL when ping_group_range sysctl doesn't map to user ns
    - ipv6: fix useless rol32 call on hash
    - ipv6: ila: select CONFIG_DST_CACHE
    - lib/rhashtable: consider param->min_size when setting initial table size
    - net: diag: Don't double-free TCP_NEW_SYN_RECV sockets in tcp_abort
    - net: Don't copy pfmemalloc flag in __copy_skb_header()
    - skbuff: Unconditionally copy pfmemalloc in __skb_clone()
    - net/ipv4: Set oif in fib_compute_spec_dst
    - net: phy: fix flag masking in __set_phy_supported
    - ptp: fix missing break in switch
    - qmi_wwan: add support for Quectel EG91
    - tg3: Add higher cpu clock for 5762.
    - hv_netvsc: Fix napi reschedule while receive completion is busy
    - net/mlx4_en: Don't reuse RX page when XDP is set
    - net: systemport: Fix CRC forwarding check for SYSTEMPORT Lite
    - ipv6: make DAD fail with enhanced DAD when nonce length differs
    - net: usb: asix: replace mii_nway_restart in resume path
    - alpha: fix osf_wait4() breakage
    - cxl_getfile(): fix double-iput() on alloc_file() failures
    - powerpc/powernv: Fix save/restore of SPRG3 on entry/exit from stop (idle)
    - xhci: Fix perceived dead host due to runtime suspend race with event handler
    - KVM: irqfd: fix race between EPOLLHUP and irq_bypass_register_consumer
    - x86/kvmclock: set pvti_cpu0_va after enabling kvmclock
    - ALSA: hda/realtek - Yet another Clevo P950 quirk entry
    - drm/amdgpu: Reserve VM root shared fence slot for command submission (v3)
    - rhashtable: add restart routine in rhashtable_free_and_destroy()
    - sch_fq_codel: zero q->flows_cnt when fq_codel_init fails
    - sctp: introduce sctp_dst_mtu
    - sctp: fix the issue that pathmtu may be set lower than MINSEGMENT
    - net: aquantia: vlan unicast address list correct handling
    - drm_mode_create_lease_ioctl(): fix open-coded filp_clone_open()
  * Bionic update: upstream stable patchset 2019-01-15 (LP: #1811877)
    - compiler-gcc.h: Add __attribute__((gnu_inline)) to all inline declarations
    - x86/asm: Add _ASM_ARG* constants for argument registers to <asm/asm.h>
    - x86/paravirt: Make native_save_fl() extern inline
    - Btrfs: fix duplicate extents after fsync of file with prealloc extents
    - cpufreq / CPPC: Set platform specific transition_delay_us
    - PCI: exynos: Fix a potential init_clk_resources NULL pointer dereference
    - alx: take rtnl before calling __alx_open from resume
    - atm: Preserve value of skb->truesize when accounting to vcc
    - atm: zatm: Fix potential Spectre v1
    - ipv6: sr: fix passing wrong flags to cryp

  linux-hwe (4.15.0-45.48~16.04.1) xenial; urgency=medium

  * linux-hwe: 4.15.0-45.48~16.04.1 -proposed tracker (LP: #1813780)

  [ Ubuntu: 4.15.0-45.48 ]

  * linux: 4.15.0-45.48 -proposed tracker (LP: #1813779)
  * External monitors does not work anymore 4.15.0-44 (LP: #1813663)
    - SAUCE: Revert "drm/i915/dp: Send DPCD ON for MST before phy_up"
  * kernel 4.15.0-44 cannot mount ext4 fs with meta_bg enabled (LP: #1813727)
    - ext4: fix false negatives *and* false positives in ext4_check_descriptors()