This bug was fixed in the package linux-oem-5.6 - 5.6.0-1020.20

---------------
linux-oem-5.6 (5.6.0-1020.20) focal; urgency=medium

  * focal/linux-oem-5.6: 5.6.0-1020.20 -proposed tracker (LP: #1886753)

  * Realtek [10ec:c82f] Subsystem [17aa:c02f] Wifi adapter not found
    (LP: #1886247)
    - SAUCE: rtw88: 8822ce: add support for device ID 0xc82f

  * [WD19TB] external DP failed with DRM error message (LP: #1886165)
    - drm/i915/tgl: Update TC DP vswing table
    - drm/i915/tgl: Implement WA_16011163337
    - SAUCE: drm/i915/bios: add intel_bios_hdmi_level_shift()
    - drm/i915/tgl: Add HBR and HBR2+ voltage swing table
    - drm/i915/dc3co: Avoid full modeset when EXITLINE needs to be changed
    - drm/i915/tgl+: Use the correct DP_TP_* register instances in MST encoders
    - drm/i915/tgl+: Fix TBT DPLL fractional divider for 38.4MHz ref clock

  * ubuntu_aufs_smoke_test failed on Focal OEM 5.6 (LP: #1879308)
    - SAUCE: fs: Enable aufs

 -- Timo Aaltonen <timo.aalto...@canonical.com>  Wed, 08 Jul 2020
11:44:53 +0300

** Changed in: linux-oem-5.6 (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1883938

Title:
  Focal update: v5.6.19 upstream stable release

Status in linux-oem-5.6 package in Ubuntu:
  Confirmed
Status in linux-oem-5.6 source package in Focal:
  Fix Released

Bug description:
  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:

         v5.6.19 upstream stable release
         from git://git.kernel.org/

  ipv6: fix IPV6_ADDRFORM operation logic
  mlxsw: core: Use different get_trend() callbacks for different thermal zones
  net_failover: fixed rollback in net_failover_open()
  tun: correct header offsets in napi frags mode
  bridge: Avoid infinite loop when suppressing NS messages with invalid options
  vxlan: Avoid infinite loop when suppressing NS messages with invalid options
  net: ena: xdp: XDP_TX: fix memory leak
  net: ena: xdp: update napi budget for DROP and ABORTED
  genetlink: fix memory leaks in genl_family_rcv_msg_dumpit()
  net: dsa: qca8k: Fix "Unexpected gfp" kernel exception
  tipc: fix NULL pointer dereference in streaming
  bpf: Support llvm-objcopy for vmlinux BTF
  elfnote: mark all .note sections SHF_ALLOC
  Input: mms114 - fix handling of mms345l
  Input: axp20x-pek - always register interrupt handlers
  ARM: 8977/1: ptrace: Fix mask for thumb breakpoint hook
  sched/fair: Don't NUMA balance for kthreads
  Input: synaptics - add a second working PNP_ID for Lenovo T470s
  csky: Fixup abiv2 syscall_trace break a4 & a5
  gfs2: Even more gfs2_find_jhead fixes
  drivers/net/ibmvnic: Update VNIC protocol version reporting
  staging: wfx: fix double free
  staging: mt7621-pci: properly power off dual-ported pcie phy
  perf probe: Accept the instance number of kretprobe event
  mm: add kvfree_sensitive() for freeing sensitive data objects
  selftests: fix flower parent qdisc
  fanotify: fix ignore mask logic for events on child and on dir
  driver core: Update device link status correctly for SYNC_STATE_ONLY links
  powerpc/xive: Clear the page tables for the ESB IO mapping
  spi: dw: Fix native CS being unset
  ath9k_htc: Silence undersized packet warnings
  smack: avoid unused 'sip' variable warning
  RDMA/uverbs: Make the event_queue fds return POLLERR when disassociated
  padata: add separate cpuhp node for CPUHP_PADATA_DEAD
  s390/pci: Log new handle in clp_disable_fh()
  x86/cpu/amd: Make erratum #1054 a legacy erratum
  KVM: x86: only do L1TF workaround on affected processors
  scsi: target: remove boilerplate code
  scsi: target: fix hang when multiple threads try to destroy the same iscsi 
session
  drm/amd/display: remove invalid dc_is_hw_initialized function
  drm/amd/display: Not doing optimize bandwidth if flip pending.
  aio: fix async fsync creds
  usercopy: mark dma-kmalloc caches as usercopy caches
  x86_64: Fix jiffies ODR violation
  x86: mm: ptdump: calculate effective permissions correctly
  x86/PCI: Mark Intel C620 MROMs as having non-compliant BARs
  x86/speculation: Prevent rogue cross-process SSBD shutdown
  x86/speculation: Avoid force-disabling IBPB based on STIBP and enhanced IBRS.
  x86/speculation: PR_SPEC_FORCE_DISABLE enforcement for indirect branches.
  x86/reboot/quirks: Add MacBook6,1 reboot quirk
  perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont
  KVM: x86: allow KVM_STATE_NESTED_MTF_PENDING in kvm_state flags
  KVM: x86/mmu: Set mmio_value to '0' if reserved #PF can't be generated
  KVM: x86: respect singlestep when emulating instruction
  KVM: x86: Fix APIC page invalidation race
  powerpc/ptdump: Properly handle non standard page size
  ASoC: max9867: fix volume controls
  io_uring: use kvfree() in io_sqe_buffer_register()
  efi/efivars: Add missing kobject_put() in sysfs entry creation error path
  smb3: fix incorrect number of credits when ioctl MaxOutputResponse > 64K
  smb3: add indatalen that can be a non-zero value to calculation of credit 
charge in smb2 ioctl
  smb3: fix typo in mount options displayed in /proc/mounts
  watchdog: imx_sc_wdt: Fix reboot on crash
  ALSA: es1688: Add the missed snd_card_free()
  ALSA: hda: add sienna_cichlid audio asic id for sienna_cichlid up
  ALSA: fireface: fix configuration error for nominal sampling transfer 
frequency
  ALSA: fireface: start IR context immediately
  ALSA: pcm: disallow linking stream to itself
  ALSA: pcm: fix snd_pcm_link() lockdep splat
  ALSA: usb-audio: Fix inconsistent card PM state after resume
  ALSA: usb-audio: Add vendor, product and profile name for HP Thunderbolt Dock
  ACPI: sysfs: Fix reference count leak in acpi_sysfs_add_hotplug_profile()
  ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe()
  ACPI: GED: add support for _Exx / _Lxx handler methods
  ACPI: PM: Avoid using power resources if there are none for D0
  arm64: acpi: fix UBSAN warning
  lib/lzo: fix ambiguous encoding bug in lzo-rle
  nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
  lib: fix bitmap_parse() on 64-bit big endian archs
  spi: dw: Fix controller unregister order
  spi: Fix controller unregister order
  spi: pxa2xx: Fix controller unregister order
  spi: pxa2xx: Fix runtime PM ref imbalance on probe error
  spi: bcm2835: Fix controller unregister order
  spi: bcm2835aux: Fix controller unregister order
  spi: bcm-qspi: Handle clock probe deferral
  spi: bcm-qspi: when tx/rx buffer is NULL set to 0
  PM: runtime: clk: Fix clk_pm_runtime_get() error path
  gup: document and work around "COW can break either way" issue
  crypto: cavium/nitrox - Fix 'nitrox_get_first_device()' when ndevlist is 
fully iterated
  crypto: algapi - Avoid spurious modprobe on LOADED
  crypto: drbg - fix error return code in drbg_alloc_state()
  crypto: virtio: Fix dest length calculation in 
__virtio_crypto_skcipher_do_req()
  crypto: virtio: Fix use-after-free in virtio_crypto_skcipher_finalize_req()
  crypto: virtio: Fix src/dst scatterlist calculation in 
__virtio_crypto_skcipher_do_req()
  io_uring: fix mismatched finish_wait() calls in io_uring_cancel_files()
  io_uring: fix flush req->refs underflow
  x86/{mce,mm}: Unmap the entire page if the whole page is affected and poisoned
  firmware: imx-scu: Support one TX and one RX
  firmware: imx: scu: Fix corruption of header
  dccp: Fix possible memleak in dccp_init and dccp_fini
  net: mvneta: do not redirect frames during reconfiguration
  selftests/net: in rxtimestamp getopt_long needs terminating null entry
  net/mlx5: drain health workqueue in case of driver load error
  net/mlx5: Fix fatal error handling during device load
  net/mlx5e: Fix repeated XSK usage on one channel
  net: cadence: macb: disable NAPI on error
  net: macb: Only disable NAPI on the actual error path
  net/mlx5: Disable reload while removing the device
  ovl: fix out of bounds access warning in ovl_check_fb_len()
  ovl: initialize error in ovl_copy_xattr
  proc: Use new_inode not new_inode_pseudo
  remoteproc: Fall back to using parent memory pool if no dedicated available
  remoteproc: Fix and restore the parenting hierarchy for vdev
  cpufreq: Fix up cpufreq_boost_set_sw()
  EDAC/skx: Use the mcmtr register to retrieve close_pg/bank_xor_enable
  video: vt8500lcdfb: fix fallthrough warning
  video: fbdev: w100fb: Fix a potential double free.
  media: videobuf2-dma-contig: fix bad kfree in 
vb2_dma_contig_clear_max_seg_size
  KVM: nVMX: Skip IBPB when switching between vmcs01 and vmcs02
  KVM: nSVM: fix condition for filtering async PF
  KVM: nSVM: leave ASID aside in copy_vmcb_control_area
  KVM: nVMX: Consult only the "basic" exit reason when routing nested exit
  KVM: MIPS: Define KVM_ENTRYHI_ASID to cpu_asid_mask(&boot_cpu_data)
  KVM: MIPS: Fix VPN2_MASK definition for variable cpu_vmbits
  KVM: arm64: Stop writing aarch32's CSSELR into ACTLR
  KVM: arm64: Make vcpu_cp1x() work on Big Endian hosts
  scsi: megaraid_sas: TM command refire leads to controller firmware crash
  scsi: lpfc: Fix negation of else clause in lpfc_prep_node_fc4type
  scsi: megaraid_sas: Replace undefined MFI_BIG_ENDIAN macro with 
__BIG_ENDIAN_BITFIELD macro
  selftests/ftrace: Return unsupported if no error_log file
  ath9k: Fix use-after-free Read in htc_connect_service
  ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx
  ath9k: Fix use-after-free Write in ath9k_htc_rx_msg
  ath9x: Fix stack-out-of-bounds Write in ath9k_hif_usb_rx_cb
  ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb
  Smack: slab-out-of-bounds in vsscanf
  drm/vkms: Hold gem object while still in-use
  mm/slub: fix a memory leak in sysfs_slab_add()
  fat: don't allow to mount if the FAT length == 0
  perf: Add cond_resched() to task_function_call()
  agp/intel: Reinforce the barrier after GTT updates
  mmc: sdhci-msm: Clear tuning done flag while hs400 tuning
  mmc: sdhci-of-at91: fix CALCR register being rewritten
  mmc: mmci_sdmmc: fix DMA API warning overlapping mappings
  mmc: tmio: Further fixup runtime PM management at remove
  mmc: uniphier-sd: call devm_request_irq() after tmio_mmc_host_probe()
  ARM: dts: at91: sama5d2_ptc_ek: fix sdmmc0 node description
  mmc: sdio: Fix potential NULL pointer error in mmc_sdio_init_card()
  mmc: sdio: Fix several potential memory leaks in mmc_sdio_init_card()
  block/floppy: fix contended case in floppy_queue_rq()
  xen/pvcalls-back: test for errors when calling backend_connect()
  platform/x86: sony-laptop: SNC calls should handle BUFFER types
  platform/x86: sony-laptop: Make resuming thermal profile safer
  KVM: arm64: Synchronize sysreg state on injecting an AArch32 exception
  KVM: arm64: Save the host's PtrAuth keys in non-preemptible context
  Linux 5.6.19
  UBUNTU: upstream stable to v5.6.19

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