Bionic update: upstream stable patchset 2020-09-11

[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 2020-09-11

                Ported from the following upstream stable releases:
                        v4.14.195, v4.19.142

       from git://git.kernel.org/

drm/vgem: Replace opencoded version of drm_gem_dumb_map_offset()
perf probe: Fix memory leakage when the probe point is not found
khugepaged: khugepaged_test_exit() check mmget_still_valid()
khugepaged: adjust VM_BUG_ON_MM() in __khugepaged_enter()
powerpc/mm: Only read faulting instruction when necessary in do_page_fault()
btrfs: export helpers for subvolume name/id resolution
btrfs: don't show full path of bind mounts in subvol=
btrfs: Move free_pages_out label in inline extent handling branch in compress_file_range
btrfs: inode: fix NULL pointer dereference if inode doesn't need compression
btrfs: sysfs: use NOFS for device creation
romfs: fix uninitialized memory leak in romfs_dev_read()
kernel/relay.c: fix memleak on destroy relay channel
mm: include CMA pages in lowmem_reserve at boot
mm, page_alloc: fix core hung in free_pcppages_bulk()
ext4: fix checking of directory entry validity for inline directories
jbd2: add the missing unlock_buffer() in the error path of jbd2_write_superblock()
UBUNTU: [Config] updateconfigs for CONFIG_SPI_DYNAMIC
spi: Prevent adding devices below an unregistering controller
scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices
media: budget-core: Improve exception handling in budget_register()
rtc: goldfish: Enable interrupt in set_alarm() when necessary
media: vpss: clean up resources in init
Input: psmouse - add a newline when printing 'proto' by sysfs
m68knommu: fix overwriting of bits in ColdFire V3 cache control
xfs: fix inode quota reservation checks
jffs2: fix UAF problem
cpufreq: intel_pstate: Fix cpuinfo_max_freq when MSR_TURBO_RATIO_LIMIT is 0
scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases
virtio_ring: Avoid loop when vq is broken in virtqueue_poll
xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init
alpha: fix annotation of io{read,write}{16,32}be()
ext4: fix potential negative array index in do_split()
i40e: Set RX_ONLY mode for unicast promiscuous on VLAN
i40e: Fix crash during removing i40e driver
net: fec: correct the error path for regulator disable in probe
bonding: show saner speed for broadcast mode
bonding: fix a potential double-unregister
ASoC: msm8916-wcd-analog: fix register Interrupt offset
ASoC: intel: Fix memleak in sst_media_open
vfio/type1: Add proper error unwind for vfio_iommu_replay()
bonding: fix active-backup failover for current ARP slave
hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
net: dsa: b53: check for timeout
powerpc/pseries: Do not initiate shutdown when system is running on UPS
epoll: Keep a reference on files added to the check list
do_epoll_ctl(): clean the failure exits up a bit
mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
xen: don't reschedule in preemption off sections
clk: Evict unregistered clks from parent caches
KVM: arm/arm64: Don't reschedule in unmap_stage2_range()
scsi: zfcp: Fix use-after-free in request timeout handlers
ext4: don't allow overlapping system zones
s390/runtime_instrumentation: fix storage key handling
s390/ptrace: fix storage key handling
kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode
kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode
Fix build error when CONFIG_ACPI is not set/enabled:
net: ena: Prevent reset after device destruction
UBUNTU: upstream stable to v4.14.195, v4.19.142

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-121.123

---------------
linux (4.15.0-121.123) bionic; urgency=medium

  * Packaging resync (LP: #1786013)
    - update dkms package versions

linux (4.15.0-120.122) bionic; urgency=medium

  * CVE-2020-16119
    - SAUCE: dccp: avoid double free of ccid on child socket

  * CVE-2020-16120
    - Revert "UBUNTU: SAUCE: overlayfs: ensure mounter privileges when reading
      directories"
    - ovl: pass correct flags for opening real directory
    - ovl: switch to mounter creds in readdir
    - ovl: verify permissions in ovl_path_open()

linux (4.15.0-119.120) bionic; urgency=medium

  * bionic/linux: 4.15.0-119.120 -proposed tracker (LP: #1896040)

  * gtp: unable to associate contextes to interfaces (LP: #1894605)
    - gtp: add GTPA_LINK info to msg sent to userspace

  * uvcvideo: add mapping for HEVC payloads (LP: #1895803)
    - media: videodev2.h: Add v4l2 definition for HEVC
    - SAUCE: media: uvcvideo: Add mapping for HEVC payloads

  * Novalink (mkvterm command failure) (LP: #1892546)
    - tty: hvcs: Don't NULL tty->driver_data until hvcs_cleanup()

  * rtnetlink.sh in net from ubuntu_kernel_selftests is returning 1 for a
    skipped test (LP: #1895258)
    - selftests: net: return Kselftest Skip code for skipped tests

  * Bionic update: upstream stable patchset 2020-09-16 (LP: #1895873)
    - net: Fix potential wrong skb->protocol in skb_vlan_untag()
    - tipc: fix uninit skb->data in tipc_nl_compat_dumpit()
    - ipvlan: fix device features
    - gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
    - ALSA: pci: delete repeated words in comments
    - ASoC: tegra: Fix reference count leaks.
    - mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs
    - arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep
    - powerpc/xive: Ignore kmemleak false positives
    - media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA
      value in debiirq()
    - blktrace: ensure our debugfs dir exists
    - scsi: target: tcmu: Fix crash on ARM during cmd completion
    - iommu/iova: Don't BUG on invalid PFNs
    - drm/amdkfd: Fix reference count leaks.
    - drm/radeon: fix multiple reference count leak
    - drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms
    - drm/amd/display: fix ref count leak in amdgpu_drm_ioctl
    - drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config
    - drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails
    - scsi: lpfc: Fix shost refcount mismatch when deleting vport
    - selftests/powerpc: Purge extra count_pmc() calls of ebb selftests
    - omapfb: fix multiple reference count leaks due to pm_runtime_get_sync
    - PCI: Fix pci_create_slot() reference count leak
    - rtlwifi: rtl8192cu: Prevent leaking urb
    - mips/vdso: Fix resource leaks in genvdso.c
    - cec-api: prevent leaking memory through hole in structure
    - f2fs: fix use-after-free issue
    - drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open
    - drm/nouveau: Fix reference count leak in nouveau_connector_detect
    - locking/lockdep: Fix overflow in presentation of average lock-time
    - scsi: iscsi: Do not put h...