Focal update: v5.4.16 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:

       v5.4.16 upstream stable release
       from git://git.kernel.org/

Linux 5.4.16
net/x25: fix nonblocking connect
netfilter: nf_tables: autoload modules from the abort path
netfilter: nf_tables: add __nft_chain_type_get()
netfilter: ipset: use bitmap infrastructure completely
media: v4l2-ioctl.c: zero reserved fields for S/TRY_FMT
libertas: Fix two buffer overflows at parsing bss descriptor
net/sonic: Prevent tx watchdog timeout
net/sonic: Fix CAM initialization
net/sonic: Fix command register usage
net/sonic: Quiesce SONIC before re-initializing descriptor memory
net/sonic: Fix receive buffer replenishment
net/sonic: Improve receive descriptor status flag check
net/sonic: Avoid needless receive descriptor EOL flag updates
net/sonic: Fix receive buffer handling
net/sonic: Fix interface error stats collection
net/sonic: Use MMIO accessors
net/sonic: Clear interrupt flags immediately
net/sonic: Add mutual exclusion for accessing shared state
readdir: be more conservative with directory entry names
do_last(): fetch directory ->i_mode and ->i_uid before it's too late
net, sk_msg: Don't check if sock is locked when tearing down psock
xfrm: support output_mark for offload ESP packets
drm/i915/userptr: fix size calculation
iwlwifi: mvm: fix potential SKB leak on TXQ TX
iwlwifi: mvm: fix SKB leak on invalid queue
tracing: xen: Ordered comparison of function pointers
scsi: RDMA/isert: Fix a recently introduced regression related to logout
hwmon: (nct7802) Fix non-working alarm on voltages
hwmon: (nct7802) Fix voltage limits to wrong registers
hsr: Fix a compilation error
leds: gpio: Fix uninitialized gpio label for fwnode based probe
readdir: make user_access_begin() use the real access range
iommu/amd: Fix IOMMU perf counter clobbering during init
lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user()
netfilter: nft_osf: add missing check for DREG attribute
Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register
Input: pegasus_notetaker - fix endpoint sanity check
Input: aiptek - fix endpoint sanity check
Input: gtco - fix endpoint sanity check
Input: sur40 - fix interface sanity checks
Input: pm8xxx-vib - fix handling of separate enable register
net/tls: fix async operation
mlxsw: switchx2: Do not modify cloned SKBs during xmit
mmc: sdhci_am654: Reset Command and Data line after tuning
mmc: sdhci_am654: Remove Inverted Write Protect flag
mmc: sdhci: fix minimum clock rate for v3 controller
mmc: tegra: fix SDR50 tuning override
ARM: 8950/1: ftrace/recordmcount: filter relocation types
Revert "Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers"
Input: keyspan-remote - fix control-message timeouts
iommu/vt-d: Call __dmar_remove_one_dev_info with valid pointer
pinctrl: sunrisepoint: Add missing Interrupt Status register offset
XArray: Fix xas_find returning too many entries
XArray: Fix xa_find_after with multi-index entries
XArray: Fix infinite loop with entry at ULONG_MAX
iwlwifi: mvm: don't send the IWL_MVM_RXQ_NSSN_SYNC notif to Rx queues
Revert "iwlwifi: mvm: fix scan config command size"
powerpc/xive: Discard ESB load value when interrupt is invalid
powerpc/mm/hash: Fix sharing context ids between kernel & userspace
tracing: Fix histogram code when expression has same var as value
tracing: Do not set trace clock if tracefs lockdown is in effect
tracing/uprobe: Fix double perf_event linking on multiprobe uprobe
tracing: trigger: Replace unneeded RCU-list traversals
PM: hibernate: fix crashes with init_on_free=1
drm/i915: Align engine->uabi_class/instance with i915_drm.h
drm/panfrost: Add the panfrost_gem_mapping concept
PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken
ceph: hold extra reference to r_parent over life of request
hwmon: (core) Do not use device managed functions for memory allocations
hwmon: (adt7475) Make volt2reg return same reg as reg2volt input
afs: Fix characters allowed into cell names
Revert "io_uring: only allow submit from owning task"
ipv4: Detect rollover in specific fib table dump
net/mlx5e: kTLS, Do not send decrypted-marked SKBs via non-accel path
net/mlx5e: kTLS, Remove redundant posts in TX resync flow
net/mlx5e: kTLS, Fix corner-case checks in TX resync flow
net/mlx5: DR, use non preemptible call to get the current cpu number
net/mlx5: E-Switch, Prevent ingress rate configuration of uplink rep
net/mlx5: DR, Enable counter on non-fwd-dest objects
net/mlx5: Update the list of the PCI supported devices
net/mlx5: Fix lowest FDB pool size
net: Fix packet reordering caused by GRO and listified RX cooperation
fou: Fix IPv6 netlink policy
mlxsw: spectrum_acl: Fix use-after-free during reload
airo: Add missing CAP_NET_ADMIN check in AIROOLDIOCTL/SIOCDEVPRIVATE
airo: Fix possible info leak in AIROOLDIOCTL/SIOCDEVPRIVATE
tun: add mutex_unlock() call and napi.skb clearing in tun_get_user()
tcp: do not leave dangling pointers in tp->highest_sack
tcp_bbr: improve arithmetic division in bbr_update_bw()
Revert "udp: do rmem bulk free even if the rx sk queue is empty"
net: usb: lan78xx: Add .ndo_features_check
net-sysfs: Fix reference count leak
net_sched: use validated TCA_KIND attribute in tc_new_tfilter()
net_sched: fix datalen for ematch
net: rtnetlink: validate IFLA_MTU attribute in rtnl_create_link()
net, ip_tunnel: fix namespaces move
net, ip6_tunnel: fix namespaces move
net: ip6_gre: fix moving ip6gre between namespaces
net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM
net: bcmgenet: Use netif_tx_napi_add() for TX NAPI
ipv6: sr: remove SKB_GSO_IPXIP6 on End.D* actions
gtp: make sure only SOCK_DGRAM UDP sockets are accepted
firestream: fix memory leaks
can, slip: Protect tty->disc_data in write_wakeup and close with RCU