Eoan update: 5.3.9 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:

* io_uring: fix up O_NONBLOCK handling for sockets
* dm snapshot: introduce account_start_copy() and account_end_copy()
* dm snapshot: rework COW throttling to fix deadlock
* Btrfs: fix inode cache block reserve leak on failure to allocate data space
* btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents()
* iio: adc: meson_saradc: Fix memory allocation order
* iio: fix center temperature of bmc150-accel-core
* libsubcmd: Make _FORTIFY_SOURCE defines dependent on the feature
* perf tests: Avoid raising SEGV using an obvious NULL dereference
* perf map: Fix overlapped map handling
* perf script brstackinsn: Fix recovery from LBR/binary mismatch
* perf jevents: Fix period for Intel fixed counters
* perf tools: Propagate get_cpuid() error
* perf annotate: Propagate perf_env__arch() error
* perf annotate: Fix the signedness of failure returns
* perf annotate: Propagate the symbol__annotate() error return
* perf annotate: Fix arch specific ->init() failure errors
* perf annotate: Return appropriate error code for allocation failures
* perf annotate: Don't return -1 for error when doing BPF disassembly
* staging: rtl8188eu: fix null dereference when kzalloc fails
* RDMA/siw: Fix serialization issue in write_space()
* RDMA/hfi1: Prevent memory leak in sdma_init
* RDMA/iw_cxgb4: fix SRQ access from dump_qp()
* RDMA/iwcm: Fix a lock inversion issue
* HID: hyperv: Use in-place iterator API in the channel callback
* kselftest: exclude failed TARGETS from runlist
* selftests/kselftest/runner.sh: Add 45 second timeout per test
* nfs: Fix nfsi->nrequests count error on nfs_inode_remove_request
* arm64: cpufeature: Effectively expose FRINT capability to userspace
* arm64: Fix incorrect irqflag restore for priority masking for compat
* arm64: ftrace: Ensure synchronisation in PLT setup for Neoverse-N1 #1542419
* tty: serial: owl: Fix the link time qualifier of 'owl_uart_exit()'
* tty: serial: rda: Fix the link time qualifier of 'rda_uart_exit()'
* serial/sifive: select SERIAL_EARLYCON
* tty: n_hdlc: fix build on SPARC
* misc: fastrpc: prevent memory leak in fastrpc_dma_buf_attach
* RDMA/core: Fix an error handling path in 'res_get_common_doit()'
* RDMA/cm: Fix memory leak in cm_add/remove_one
* RDMA/nldev: Reshuffle the code to avoid need to rebind QP in error path
* RDMA/mlx5: Do not allow rereg of a ODP MR
* RDMA/mlx5: Order num_pending_prefetch properly with synchronize_srcu
* RDMA/mlx5: Add missing synchronize_srcu() for MW cases
* gpio: max77620: Use correct unit for debounce times
* fs: cifs: mute -Wunused-const-variable message
* arm64: vdso32: Fix broken compat vDSO build warnings
* arm64: vdso32: Detect binutils support for dmb ishld
* serial: mctrl_gpio: Check for NULL pointer
* serial: 8250_omap: Fix gpio check for auto RTS/CTS
* arm64: Default to building compat vDSO with clang when CONFIG_CC_IS_CLANG
* arm64: vdso32: Don't use KBUILD_CPPFLAGS unconditionally
* efi/cper: Fix endianness of PCIe class code
* efi/x86: Do not clean dummy variable in kexec path
* MIPS: include: Mark __cmpxchg as __always_inline
* riscv: avoid kernel hangs when trapped in BUG()
* riscv: avoid sending a SIGTRAP to a user thread trapped in WARN()
* riscv: Correct the handling of unexpected ebreak in do_trap_break()
* x86/xen: Return from panic notifier
* ocfs2: clear zero in unaligned direct IO
* fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()
* fs: ocfs2: fix a possible null-pointer dereference in ocfs2_write_end_nolock()
* fs: ocfs2: fix a possible null-pointer dereference in ocfs2_info_scan_inode_alloc()
* btrfs: silence maybe-uninitialized warning in clone_range
* arm64: armv8_deprecated: Checking return value for memory allocation
* x86/cpu: Add Comet Lake to the Intel CPU models header
* sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision
* sched/vtime: Fix guest/system mis-accounting on task switch
* perf/core: Rework memory accounting in perf_mmap()
* perf/core: Fix corner case in perf_rotate_context()
* perf/x86/amd: Change/fix NMI latency mitigation to use a timestamp
* drm/amdgpu: fix memory leak
* iio: imu: adis16400: release allocated memory on failure
* iio: imu: adis16400: fix memory leak
* iio: imu: st_lsm6dsx: fix waitime for st_lsm6dsx i2c controller
* MIPS: include: Mark __xchg as __always_inline
* MIPS: fw: sni: Fix out of bounds init of o32 stack
* s390/cio: fix virtio-ccw DMA without PV
* virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr
* nbd: fix possible sysfs duplicate warning
* NFSv4: Fix leak of clp->cl_acceptor string
* SUNRPC: fix race to sk_err after xs_error_report
* s390/uaccess: avoid (false positive) compiler warnings
* tracing: Initialize iter->seq after zeroing in tracing_read_pipe()
* perf annotate: Fix multiple memory and file descriptor leaks
* perf/aux: Fix tracking of auxiliary trace buffer allocation
* USB: legousbtower: fix a signedness bug in tower_probe()
* nbd: verify socket is supported during setup
* fuse: flush dirty data/metadata before non-truncate setattr
* fuse: truncate pending writes on O_TRUNC
* ALSA: bebob: Fix prototype of helper function to return negative value
* ALSA: timer: Fix mutex deadlock at releasing card
* ALSA: hda/realtek - Fix 2 front mics of codec 0x623
* ALSA: hda/realtek - Add support for ALC623
* ath10k: fix latency issue for QCA988x
* UAS: Revert commit 3ae62a42090f ("UAS: fix alignment of scatter/gather segments")
* nl80211: fix validation of mesh path nexthop
* USB: gadget: Reject endpoints with 0 maxpacket value
* usb-storage: Revert commit 747668dbc061 ("usb-storage: Set virt_boundary_mask to avoid SG overflows")
* USB: ldusb: fix ring-buffer locking
* USB: ldusb: fix control-message timeout
* usb: xhci: fix Immediate Data Transfer endianness
* usb: xhci: fix __le32/__le64 accessors in debugfs code
* USB: serial: whiteheat: fix potential slab corruption
* USB: serial: whiteheat: fix line-speed endianness
* xhci: Fix use-after-free regression in xhci clear hub TT implementation
* scsi: qla2xxx: Fix partial flash write of MBI
* scsi: target: cxgbit: Fix cxgbit_fw4_ack()
* HID: i2c-hid: add Trekstor Primebook C11B to descriptor override
* HID: Fix assumption that devices have inputs
* HID: fix error message in hid_open_report()
* HID: logitech-hidpp: split g920_get_config()
* HID: logitech-hidpp: rework device validation
* HID: logitech-hidpp: do all FF cleanup in hidpp_ff_destroy()
* um-ubd: Entrust re-queue to the upper layers
* s390/unwind: fix mixing regs and sp
* s390/cmm: fix information leak in cmm_timeout_handler()
* s390/idle: fix cpu idle time calculation
* ARC: perf: Accommodate big-endian CPU
* IB/hfi1: Avoid excessive retry for TID RDMA READ request
* arm64: Ensure VM_WRITE|VM_SHARED ptes are clean by default
* arm64: cpufeature: Enable Qualcomm Falkor/Kryo errata 1003
* virtio_ring: fix stalls for packed rings
* rtlwifi: rtl_pci: Fix problem of too small skb->len
* KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active
* dmaengine: qcom: bam_dma: Fix resource leak
* dmaengine: tegra210-adma: fix transfer failure
* dmaengine: imx-sdma: fix size check for sdma script_number
* dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle
* drm/amdgpu/gmc10: properly set BANK_SELECT and FRAGMENT_SIZE
* drm/i915: Fix PCH reference clock for FDI on HSW/BDW
* drm/amdgpu/gfx10: update gfx golden settings
* drm/amdgpu/powerplay/vega10: allow undervolting in p7
* drm/amdgpu: Fix SDMA hang when performing VKexample test
* NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
* io_uring: ensure we clear io_kiocb->result before each issue
* iommu/vt-d: Fix panic after kexec -p for kdump
* batman-adv: Avoid free/alloc race when handling OGM buffer
* llc: fix sk_buff leak in llc_sap_state_process()
* llc: fix sk_buff leak in llc_conn_service()
* rxrpc: Fix call ref leak
* rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record
* rxrpc: Fix trace-after-put looking at the put peer record
* NFC: pn533: fix use-after-free and memleaks
* bonding: fix potential NULL deref in bond_update_slave_arr
* netfilter: conntrack: avoid possible false sharing
* net: usb: sr9800: fix uninitialized local variable
* sch_netem: fix rcu splat in netem_enqueue()
* net: sched: sch_sfb: don't call qdisc_put() while holding tree lock
* iwlwifi: exclude GEO SAR support for 3168
* sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices
* ALSA: usb-audio: DSD auto-detection for Playback Designs
* ALSA: usb-audio: Update DSD support quirks for Oppo and Rotel
* ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB Interface
* RDMA/mlx5: Use irq xarray locking for mkey_table
* sched/fair: Fix -Wunused-but-set-variable warnings
* powerpc/powernv: Fix CPU idle to be called with IRQs disabled
* Revert "nvme: allow 64-bit results in passthru commands"
* Revert "ALSA: hda: Flush interrupts on disabling"
* Linux 5.3.9
* UBUNTU: upstream stable to v5.3.9

       5.3.9 upstream stable release
       from git://git.kernel.org/