Disco update: 5.0.11 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:

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

The following patches were applied:
* netfilter: nf_tables: bogus EBUSY when deleting set after flush
* netfilter: nf_tables: bogus EBUSY in helper removal from transaction
* intel_th: gth: Fix an off-by-one in output unassigning
* powerpc/vdso32: fix CLOCK_MONOTONIC on PPC64
* ALSA: hda/realtek - Move to ACT_INIT state
* fs/proc/proc_sysctl.c: Fix a NULL pointer dereference
* block, bfq: fix use after free in bfq_bfqq_expire
* cifs: fix memory leak in SMB2_read
* cifs: fix page reference leak with readv/writev
* cifs: do not attempt cifs operation on smb2+ rename error
* tracing: Fix a memory leak by early error exit in trace_pid_write()
* tracing: Fix buffer_ref pipe ops
* crypto: xts - Fix atomic sleep when walking skcipher
* crypto: lrw - Fix atomic sleep when walking skcipher
* gpio: eic: sprd: Fix incorrect irq type setting for the sync EIC
* zram: pass down the bvec we need to read into in the work struct
* lib/Kconfig.debug: fix build error without CONFIG_BLOCK
* MIPS: scall64-o32: Fix indirect syscall number load
* trace: Fix preempt_enable_no_resched() abuse
* mm: do not boost watermarks to avoid fragmentation for the DISCONTIG memory model
* arm64: mm: Ensure tail of unaligned initrd is reserved
* IB/rdmavt: Fix frwr memory registration
* RDMA/mlx5: Do not allow the user to write to the clock page
* RDMA/mlx5: Use rdma_user_map_io for mapping BAR pages
* RDMA/ucontext: Fix regression with disassociate
* sched/numa: Fix a possible divide-by-zero
* ceph: only use d_name directly when parent is locked
* ceph: ensure d_name stability in ceph_dentry_hash()
* ceph: fix ci->i_head_snapc leak
* nfsd: Don't release the callback slot unless it was actually held
* nfsd: wake waiters blocked on file_lock before deleting it
* nfsd: wake blocked file lock waiters before sending callback
* sunrpc: don't mark uninitialised items as VALID.
* perf/x86/intel: Update KBL Package C-state events to also include PC8/PC9/PC10
  counters
* Input: synaptics-rmi4 - write config register values to the right offset
* dmaengine: sh: rcar-dmac: With cyclic DMA residue 0 is valid
* dmaengine: sh: rcar-dmac: Fix glitch in dmaengine_tx_status
* dmaengine: mediatek-cqdma: fix wrong register usage in mtk_cqdma_start
* ARM: 8857/1: efi: enable CP15 DMB instructions before cleaning the cache
* powerpc/mm/radix: Make Radix require HUGETLB_PAGE
* drm/vc4: Fix memory leak during gpu reset.
* drm/ttm: fix re-init of global structures
* drm/vc4: Fix compilation error reported by kbuild test bot
* ext4: fix some error pointer dereferences
* loop: do not print warn message if partition scan is successful
* tipc: handle the err returned from cmd header function
* slip: make slhc_free() silently accept an error pointer
* workqueue: Try to catch flush_work() without INIT_WORK().
* sched/deadline: Correctly handle active 0-lag timers
* mac80211_hwsim: calculate if_combination.max_interfaces
* NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family.
* netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON
* fm10k: Fix a potential NULL pointer dereference
* tipc: check bearer name with right length in tipc_nl_compat_bearer_enable
* tipc: check link name with right length in tipc_nl_compat_link_set
* net: netrom: Fix error cleanup path of nr_proto_init
* net/rds: Check address length before reading address family
* rxrpc: fix race condition in rxrpc_input_packet()
* pin iocb through aio.
* aio: fold lookup_kiocb() into its sole caller
* aio: keep io_event in aio_kiocb
* aio: store event at final iocb_put()
* Fix aio_poll() races
* x86, retpolines: Raise limit for generating indirect calls from switch-case
* x86/retpolines: Disable switch jump tables when retpolines are enabled
* rdma: fix build errors on s390 and MIPS due to bad ZERO_PAGE use
* ipv4: add sanity checks in ipv4_link_failure()
* ipv4: set the tcp_min_rtt_wlen range from 0 to one day
* mlxsw: spectrum: Fix autoneg status in ethtool
* net/mlx5e: ethtool, Remove unsupported SFP EEPROM high pages query
* net: rds: exchange of 8K and 1M pool
* net/rose: fix unbound loop in rose_loopback_timer()
* net: stmmac: move stmmac_check_ether_addr() to driver probe
* net/tls: fix refcount adjustment in fallback
* stmmac: pci: Adjust IOT2000 matching
* team: fix possible recursive locking when add slaves
* net: socionext: replace napi_alloc_frag with the netdev variant on init
* net/ncsi: handle overflow when incrementing mac address
* mlxsw: pci: Reincrease PCI reset timeout
* mlxsw: spectrum: Put MC TCs into DWRR mode
* net/mlx5e: Fix the max MTU check in case of XDP
* net/mlx5e: Fix use-after-free after xdp_return_frame
* net/tls: avoid potential deadlock in tls_set_device_offload_rx()
* net/tls: don't leak IV and record seq when offload fails
* Linux 5.0.11