Focal update: v5.4.270 upstream stable release

[Manuel Diewald]

    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:

       v5.4.270 upstream stable release
       from git://git.kernel.org/

KVM: arm64: vgic-its: Test for valid IRQ in its_sync_lpi_pending_table()
KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler
net/sched: Retire CBQ qdisc
UBUNTU: [Config] updateconfigs for NET_SCH_CBQ
net/sched: Retire ATM qdisc
UBUNTU: [Config] updateconfigs for NET_SCH_ATM
net/sched: Retire dsmark qdisc
UBUNTU: [Config] updateconfigs for NET_SCH_DSMARK
sched/rt: sysctl_sched_rr_timeslice show default timeslice after reset
memcg: add refcnt for pcpu stock to avoid UAF problem in drain_all_stock()
nilfs2: replace WARN_ONs for invalid DAT metadata block requests
userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb
sched/rt: Fix sysctl_sched_rr_timeslice intial value
sched/rt: Disallow writing invalid values to sched_rt_period_us
scsi: target: core: Add TMF to tmr_list handling
dmaengine: shdma: increase size of 'dev_id'
dmaengine: fsl-qdma: increase size of 'irq_name'
wifi: cfg80211: fix missing interfaces when dumping
wifi: mac80211: fix race condition on enabling fast-xmit
fbdev: savage: Error out if pixclock equals zero
fbdev: sis: Error out if pixclock equals zero
ahci: asm1166: correct count of reported ports
ahci: add 43-bit DMA address quirk for ASMedia ASM1061 controllers
ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()
ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()
regulator: pwm-regulator: Add validity checks in continuous .get_voltage
nvmet-tcp: fix nvme tcp ida memory leak
ASoC: sunxi: sun4i-spdif: Add support for Allwinner H616
netfilter: conntrack: check SCTP_CID_SHUTDOWN_ACK for vtag setting in sctp_new
nvmet-fc: abort command when there is no binding
hwmon: (coretemp) Enlarge per package core count limit
scsi: lpfc: Use unsigned type for num_sge
firewire: core: send bus reset promptly on gap count error
virtio-blk: Ensure no requests in virtqueues before deleting vqs.
s390/qeth: Fix potential loss of L3-IP@ in case of network issues
pmdomain: renesas: r8a77980-sysc: CR7 must be always on
tcp: factor out __tcp_close() helper
tcp: return EPOLLOUT from tcp_poll only when notsent_bytes is half the limit
tcp: add annotations around sk->sk_shutdown accesses
pinctrl: pinctrl-rockchip: Fix a bunch of kerneldoc misdemeanours
pinctrl: rockchip: Fix refcount leak in rockchip_pinctrl_parse_groups
spi: mt7621: Fix an error message in mt7621_spi_probe()
net: bridge: clear bridge's private skb space on xmit
selftests/bpf: Avoid running unprivileged tests with alignment requirements
Revert "drm/sun4i: dsi: Change the start delay calculation"
drm/amdgpu: Check for valid number of registers to read
x86/alternatives: Disable KASAN in apply_alternatives()
dm-integrity: don't modify bio's immutable bio_vec in integrity_metadata()
iomap: Set all uptodate bits for an Uptodate page
drm/amdgpu: Fix type of second parameter in trans_msg() callback
arm64: dts: qcom: msm8916: Fix typo in pronto remoteproc node
PCI: tegra: Fix reporting GPIO error value
PCI: tegra: Fix OF node reference leak
IB/hfi1: Fix sdma.h tx->num_descs off-by-one error
dm-crypt: don't modify the data when using authenticated encryption
gtp: fix use-after-free and null-ptr-deref in gtp_genl_dump_pdp()
PCI/MSI: Prevent MSI hardware interrupt number truncation
l2tp: pass correct message length to ip6_append_data
ARM: ep93xx: Add terminator to gpiod_lookup_table
usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()
usb: cdns3: fix memory double free when handle zero packet
usb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs
usb: roles: don't get/set_role() when usb_role_switch is unregistered
IB/hfi1: Fix a memleak in init_credit_return
RDMA/bnxt_re: Return error for SRQ resize
RDMA/srpt: Make debug output more detailed
RDMA/srpt: fix function pointer cast warnings
scripts/bpf: teach bpf_helpers_doc.py to dump BPF helper definitions
bpf, scripts: Correct GPL license name
scsi: jazz_esp: Only build if SCSI core is builtin
nouveau: fix function cast warnings
ipv4: properly combine dev_base_seq and ipv4.dev_addr_genid
ipv6: properly combine dev_base_seq and ipv6.dev_addr_genid
afs: Increase buffer size in afs_update_volume_status()
ipv6: sr: fix possible use-after-free and null-ptr-deref
packet: move from strlcpy with unused retval to strscpy
s390: use the correct count for __iowrite64_copy()
tls: rx: jump to a more appropriate label
tls: rx: drop pointless else after goto
tls: stop recv() if initial process_rx_list gave us non-DATA
netfilter: nf_tables: set dormant flag on hook register failure
drm/syncobj: make lockdep complain on WAIT_FOR_SUBMIT v3
drm/syncobj: call drm_syncobj_fence_add_wait when WAIT_AVAILABLE flag is set
fs/aio: Restrict kiocb_set_cancel_fn() to I/O submitted via libaio
scripts/bpf: Fix xdp_md forward declaration typo
Linux 5.4.270
UBUNTU: Upstream stable to v5.4.270