Bionic update: upstream stable patchset 2019-01-17

[Kamal Mostafa]

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 following upstream
       stable patches should be included in the Ubuntu kernel:

       upstream stable patchset 2019-01-17 (ported from v4.14.58 and v4.17.10)
       from git://git.kernel.org/

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()

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-46.49

---------------
linux (4.15.0-46.49) bionic; urgency=medium

  * 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 netl...