Focal update: v5.4.19 upstream stable release

    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:

       v5.4.19 upstream stable release
       from git://git.kernel.org/

Linux 5.4.19
powerpc/kuap: Fix set direction in allow/prevent_user_access()
regulator fix for "regulator: core: Add regulator_is_equal() helper"
rxrpc: Fix service call disconnection
perf/core: Fix mlock accounting in perf_mmap()
clocksource: Prevent double add_timer_on() for watchdog_timer
x86/apic/msi: Plug non-maskable MSI affinity race
cifs: fail i/o on soft mounts if sessionsetup errors out
KVM: Play nice with read-only memslots when querying host page size
KVM: Use vcpu-specific gva->hva translation when querying host page size
KVM: nVMX: vmread should not set rflags to specify success in case of #PF
KVM: x86: fix overlap between SPTE_MMIO_MASK and generation
KVM: x86: Use gpa_t for cr2/gpa to fix TDP support on 32-bit KVM
KVM: x86: use CPUID to locate host page table reserved bits
KVM: x86/mmu: Apply max PA check for MMIO sptes to 32-bit KVM
drm/dp_mst: Remove VCPI while disabling topology mgr
btrfs: free block groups after free'ing fs trees
btrfs: use bool argument in free_root_pointers()
x86/timer: Don't skip PIT setup when APIC is disabled or in legacy mode
mfd: bd70528: Fix hour register mask
mfd: rn5t618: Mark ADC control register volatile
mfd: da9062: Fix watchdog compatible string
ASoC: Intel: skl_hda_dsp_common: Fix global-out-of-bounds bug
net/mlx5: Deprecate usage of generic TLS HW capability bit
net/mlx5: Fix deadlock in fs_core
drop_monitor: Do not cancel uninitialized work item
qed: Fix timestamping issue for L2 unicast ptp packets.
ipv6/addrconf: fix potential NULL deref in inet6_set_link_af()
taprio: Fix dropping packets when using taprio + ETF offloading
taprio: Use taprio_reset_tc() to reset Traffic Classes configuration
taprio: Add missing policy validation for flags
taprio: Fix still allowing changing the flags during runtime
taprio: Fix enabling offload with wrong number of traffic classes
net: macb: Limit maximum GEM TX length in TSO
net: macb: Remove unnecessary alignment check for TSO
net/mlx5: IPsec, fix memory leak at mlx5_fpga_ipsec_delete_sa_ctx
net/mlx5: IPsec, Fix esp modify function attribute
net: systemport: Avoid RBUF stuck in Wake-on-LAN mode
net: stmmac: fix a possible endless loop
net_sched: fix a resource leak in tcindex_set_parms()
net: mvneta: move rx_dropped and rx_errors in per-cpu stats
net: dsa: microchip: enable module autoprobe
net: dsa: bcm_sf2: Only 7278 supports 2Gb/sec IMP port
net: dsa: b53: Always use dev->vlan_enabled in b53_configure_vlan()
dpaa_eth: support all modes with rate adapting PHYs
devlink: report 0 after hitting end in region read
bonding/alb: properly access headers in bond_alb_xmit()
ASoC: sgtl5000: Fix VDDA and VDDIO comparison
regulator: core: Add regulator_is_equal() helper
ubifs: Fix memory leak from c->sup_node
ubi: Fix an error pointer dereference in error handling code
ubi: fastmap: Fix inverted logic in seen selfcheck
virtio_balloon: Fix memory leaks on errors in virtballoon_probe()
virtio-balloon: Fix memory leak when unloading while hinting is in progress
nfsd: Return the correct number of bytes written to the file
nfsd: fix jiffies/time_t mixup in LRU list
nfsd: fix delay timer on 32-bit architectures
IB/core: Fix ODP get user pages flow
IB/mlx5: Fix outstanding_pi index for GSI qps
net: tulip: Adjust indentation in {dmfe, uli526x}_init_module
net: smc911x: Adjust indentation in smc911x_phy_configure
ppp: Adjust indentation into ppp_async_input
NFC: pn544: Adjust indentation in pn544_hci_check_presence
drm: msm: mdp4: Adjust indentation in mdp4_dsi_encoder_enable
powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize
ext2: Adjust indentation in ext2_fill_super
phy: qualcomm: Adjust indentation in read_poll_timeout
mtd: spi-nor: Split mt25qu512a (n25q512a) entry into two
scsi: ufs: Recheck bkops level if bkops is disabled
scsi: qla4xxx: Adjust indentation in qla4xxx_mem_free
scsi: csiostor: Adjust indentation in csio_device_reset
scsi: qla2xxx: Fix the endianness of the qla82xx_get_fw_size() return type
ASoC: meson: axg-fifo: fix fifo threshold setup
percpu: Separate decrypted varaibles anytime encryption can be enabled
broken ping to ipv6 linklocal addresses on debian buster
fix up iter on short count in fuse_direct_io()
virtio-pci: check name when counting MSI-X vectors
virtio-balloon: initialize all vq callbacks
drm/amd/dm/mst: Ignore payload update failures
clk: tegra: Mark fuse clock as critical
mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush
arm64: dts: qcom: qcs404-evb: Set vdd_apc regulator in high power mode
mm/page_alloc.c: fix uninitialized memmaps on a partially populated last section
ocfs2: fix oops when writing cloned file
KVM: s390: do not clobber registers during guest reset/store status
KVM: x86: Revert "KVM: X86: Fix fpu state crash in kvm guest"
KVM: x86: Ensure guest's FPU state is loaded when accessing for emulation
KVM: x86: Handle TIF_NEED_FPU_LOAD in kvm_{load,put}_guest_fpu()
KVM: x86: Free wbinvd_dirty_mask if vCPU creation fails
KVM: x86: Don't let userspace set host-reserved cr4 bits
KVM: VMX: Add non-canonical check on writes to RTIT address MSRs
x86/KVM: Clean up host's steal time structure
x86/kvm: Cache gfn to pfn translation
x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
x86/kvm: Introduce kvm_(un)map_gfn()
x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
kvm/svm: PKU not currently supported
KVM: PPC: Book3S PR: Free shared page if mmu initialization fails
KVM: PPC: Book3S HV: Uninit vCPU if vcore creation fails
KVM: x86: Fix potential put_fpu() w/o load_fpu() on MPX platform
KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks
KVM: x86: Protect x86_decode_insn from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations from Spectre-v1/L1TF attacks in x86.c
KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks
KVM: x86: Protect ioapic_write_indirect() from Spectre-v1/L1TF attacks
KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks
KVM: x86: Protect kvm_lapic_reg_write() from Spectre-v1/L1TF attacks
KVM: x86: Protect DR-based index computations from Spectre-v1/L1TF attacks
KVM: x86: Protect pmu_intel.c from Spectre-v1/L1TF attacks
KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks
KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks
aio: prevent potential eventfd recursion on poll
eventfd: track eventfd_signal() recursion depth
bcache: add readahead cache policy options via sysfs interface
watchdog: fix UAF in reboot notifier handling in watchdog core code
xen/balloon: Support xend-based toolstack take two
tools/kvm_stat: Fix kvm_exit filter name
media: rc: ensure lirc is initialized before registering input device
media: iguanair: fix endpoint sanity check
drm/rect: Avoid division by zero
drm: atmel-hlcdc: prefer a lower pixel-clock than requested
drm: atmel-hlcdc: enable clock before configuring timing engine
drm: atmel-hlcdc: use double rate for pixel clock only if supported
gfs2: fix O_SYNC write handling
gfs2: move setting current->backing_dev_info
gfs2: fix gfs2_find_jhead that returns uninitialized jhead with seq 0
sunrpc: expiry_time should be seconds not timeval
mwifiex: fix unbalanced locking in mwifiex_process_country_ie()
iwlwifi: don't throw error when trying to remove IGTK
ARM: tegra: Enable PLLP bypass during Tegra124 LP1
btrfs: Correctly handle empty trees in find_first_clear_extent_bit
btrfs: flush write bio if we loop in extent_write_cache_pages
Btrfs: fix race between adding and putting tree mod seq elements and nodes
btrfs: drop log root for dropped roots
btrfs: set trans->drity in btrfs_commit_transaction
Btrfs: fix infinite loop during fsync after rename operations
Btrfs: make deduplication with range including the last block work
Btrfs: fix missing hole after hole punching and fsync when using NO_HOLES
ext4: fix race conditions in ->d_compare() and ->d_hash()
ext4: fix deadlock allocating crypto bounce page from mempool
jbd2_seq_info_next should increase position index
nfsd: fix filecache lookup
NFS: Directory page cache pages need to be locked when read
NFS: Fix memory leaks and corruption in readdir
scsi: qla2xxx: Fix unbound NVME response length
powerpc/futex: Fix incorrect user access blocking
crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill
crypto: api - Fix race condition in crypto_spawn_alg
crypto: atmel-aes - Fix counter overflow in CTR mode
crypto: pcrypt - Do not clear MAY_SLEEP flag in original request
crypto: arm64/ghash-neon - bump priority to 150
crypto: ccp - set max RSA modulus size for v3 platform devices as well
crypto: hisilicon - Use the offset fields in sqe to avoid need to split scatterlists
crypto: api - fix unexpectedly getting generic implementation
selftests: bpf: Ignore FIN packets for reuseport tests
selftests: bpf: Use a temporary file in test_sockmap
selftests/bpf: Skip perf hw events test if the setup disabled it
selftests/bpf: Fix test_attach_probe
samples/bpf: Xdp_redirect_cpu fix missing tracepoint attach
samples/bpf: Don't try to remove user's homedir on clean
tc-testing: fix eBPF tests failure on linux fresh clones
libbpf: Fix realloc usage in bpf_core_find_cands
bpf, devmap: Pass lockdep expression to RCU lists
selftests/bpf: Fix perf_buffer test on systems w/ offline CPUs
riscv, bpf: Fix broken BPF tail calls
btrfs: Handle another split brain scenario with metadata uuid feature
btrfs: fix improper setting of scanned for range cyclic write cache pages
crypto: pcrypt - Avoid deadlock by using per-instance padata queues
ftrace: Protect ftrace_graph_hash with ftrace_sync
ftrace: Add comment to why rcu_dereference_sched() is open coded
tracing: Annotate ftrace_graph_notrace_hash pointer with __rcu
tracing: Annotate ftrace_graph_hash pointer with __rcu
ASoC: SOF: core: release resources on errors in probe_continue
ASoC: SOF: Introduce state machine for FW boot
scsi: qla2xxx: Fix stuck login session using prli_pend_timer
dm: fix potential for q->make_request_fn NULL pointer
dm thin metadata: use pool locking at end of dm_pool_metadata_close
dm crypt: fix benbi IV constructor crash if used in authenticated mode
dm crypt: fix GFP flags passed to skcipher_request_alloc()
dm writecache: fix incorrect flush sequence when doing SSD mode commit
dm space map common: fix to ensure new block isn't already in use
dm zoned: support zone sizes smaller than 128MiB
ARM: dma-api: fix max_pfn off-by-one error in __dma_supported()
of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc
cpufreq: Avoid creating excessively large stack frames
PM: core: Fix handling of devices deleted during system-wide resume
f2fs: fix race conditions in ->d_compare() and ->d_hash()
f2fs: fix dcache lookup of !casefolded directories
f2fs: code cleanup for f2fs_statfs_project()
f2fs: fix miscounted block limit in f2fs_statfs_project()
f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project()
ovl: fix lseek overflow on 32bit
ovl: fix wrong WARN_ON() in ovl_cache_update_ino()
power: supply: ltc2941-battery-gauge: fix use-after-free
power: supply: axp20x_ac_power: Fix reporting online status
cpupower: Revert library ABI changes from commit ae2917093fb60bdc1ed3e
scsi: qla2xxx: Fix mtcp dump collection failure
scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state
erofs: fix out-of-bound read for shifted uncompressed block
scripts/find-unused-docs: Fix massive false positives
fs: allow deduplication of eof block into the end of the destination file
padata: Remove broken queue flushing
crypto: ccree - fix PM race condition
crypto: ccree - fix FDE descriptor sequence
crypto: ccree - fix pm wrongful error reporting
crypto: ccree - fix AEAD decrypt auth fail
crypto: ccree - fix backlog memory leak
crypto: api - Check spawn->alg under lock in crypto_drop_spawn
nvmem: core: fix memory abort in cleanup path
mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile
hv_balloon: Balloon up according to request page number
ASoC: SOF: core: free trace on errors
mmc: sdhci-of-at91: fix memleak on clk_get failure
ubifs: Fix deadlock in concurrent bulk-read and writepage
ubifs: Fix FS_IOC_SETFLAGS unexpectedly clearing encrypt flag
ubifs: Fix wrong memory allocation
ubifs: don't trigger assertion on invalid no-key filename
fscrypt: don't print name of busy file when removing key
alarmtimer: Unregister wakeup source when module get fails
ACPI / battery: Deal better with neither design nor full capacity not being reported
ACPI / battery: Use design-cap for capacity calculations if full-cap is not available
ACPI / battery: Deal with design or full capacity being reported as -1
ACPI: video: Do not export a non working backlight interface on MSI MS-7721 boards
mmc: spi: Toggle SPI polarity, do not hardcode it
PCI: keystone: Fix error handling when "num-viewport" DT property is not populated
PCI: keystone: Fix link training retries initiation
PCI: keystone: Fix outbound region mapping
PCI: tegra: Fix return value check of pm_runtime_get_sync()
tracing: Fix now invalid var_ref_vals assumption in trace action
powerpc/32s: Fix CPU wake-up from sleep mode
powerpc/32s: Fix bad_kuap_fault()
powerpc/pseries: Advance pfn if section is not present in lmb_is_removable()
powerpc/xmon: don't access ASDR in VMs
powerpc/ptdump: Fix W+X verification
powerpc/mmu_gather: enable RCU_TABLE_FREE even for !SMP case
s390/mm: fix dynamic pagetable upgrade for hugetlbfs
MIPS: boot: fix typo in 'vmlinux.lzma.its' target
MIPS: fix indentation of the 'RELOCS' message
MIPS: syscalls: fix indentation of the 'SYSNR' message
KVM: arm64: Only sign-extend MMIO up to register width
KVM: arm/arm64: Correct AArch32 SPSR on exception entry
KVM: arm/arm64: Correct CPSR on exception entry
KVM: arm64: Correct PSTATE on exception entry
arm64: acpi: fix DAIF manipulation with pNMI
ALSA: hda: Add JasperLake PCI ID and codec vid
ALSA: hda: Add Clevo W65_67SB the power_save blacklist
ALSA: hda: Apply aligned MMIO access only conditionally
platform/x86: intel_scu_ipc: Fix interrupt support
x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR
irqdomain: Fix a memory leak in irq_domain_push_irq()
lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()
media: v4l2-rect.h: fix v4l2_rect_map_inside() top/left adjustments
media: v4l2-core: compat: ignore native command codes
media/v4l2-core: set pages dirty upon releasing DMA buffers
mm: move_pages: report the number of non-attempted pages
mm: thp: don't need care deferred split queue in memcg charge move path
mm/memory_hotplug: fix remove_memory() lockdep splat
utimes: Clamp the timestamps in notify_change()
mmc: sdhci-pci: Make function amd_sdhci_reset static
mm/sparse.c: reset section's mem_map when fully deactivated
memcg: fix a crash in wb_workfn when a device disappears
ALSA: dummy: Fix PCM format loop in proc output
ALSA: usb-audio: Annotate endianess in Scarlett gen2 quirk
ALSA: usb-audio: Fix endianess in descriptor validation
usb: gadget: f_ecm: Use atomic_t to track in-flight request
usb: gadget: f_ncm: Use atomic_t to track in-flight request
usb: gadget: legacy: set max_speed to super-speed
usb: gadget: f_fs: set req->num_sgs as 0 for non-sg transfer
objtool: Silence build output
usb: typec: tcpci: mask event interrupts when remove driver
usb: dwc3: gadget: Delay starting transfer
usb: dwc3: gadget: Check END_TRANSFER completion
brcmfmac: Fix memory leak in brcmf_usbdev_qinit
Bluetooth: btusb: Disable runtime suspend on Realtek devices
Bluetooth: btusb: fix memory leak on fw
nvmet: Fix controller use after free
nvmet: Fix error print message at nvmet_install_queue function
rcu: Use READ_ONCE() for ->expmask in rcu_read_unlock_special()
srcu: Apply *_ONCE() to ->srcu_last_gp_end
rcu: Avoid data-race in rcu_gp_fqs_check_wake()
rcu: Use *_ONCE() to protect lockless ->expmask accesses
tracing: Fix sched switch start/stop refcount racy updates
tracing/kprobes: Have uname use __get_str() in print_fmt
ipc/msg.c: consolidate all xxxctl_down() functions
netfilter: ipset: fix suspicious RCU usage in find_set_and_id
mfd: dln2: More sanity checking for endpoints
media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors
bnxt_en: Fix logic that disables Bus Master during firmware reset.
netdevsim: fix stack-out-of-bounds in nsim_dev_debugfs_init()
MAINTAINERS: correct entries for ISDN/mISDN section
ionic: fix rxq comp packet type mask
tcp: clear tp->segs_{in|out} in tcp_disconnect()
tcp: clear tp->data_segs{in|out} in tcp_disconnect()
tcp: clear tp->delivered in tcp_disconnect()
tcp: clear tp->total_retrans in tcp_disconnect()
rxrpc: Fix NULL pointer deref due to call->conn being cleared on disconnect
rxrpc: Fix missing active use pinning of rxrpc_local object
rxrpc: Fix insufficient receive notification generation
rxrpc: Fix use-after-free in rxrpc_put_local()
bnxt_en: Fix TC queue mapping.
net: stmmac: Delete txtimer in suspend()
net_sched: fix an OOB access in cls_tcindex
net: hsr: fix possible NULL deref in hsr_handle_frame()
l2tp: Allow duplicate session creation with UDP
gtp: use __GFP_NOWARN to avoid memalloc warning
cls_rsvp: fix rsvp_policy
bnxt_en: Move devlink_register before registering netdev
sparc32: fix struct ipc64_perm type definition