Disco update: 4.19.4 upstream stable release

[Seth Forshee]

    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:

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

Linux 4.19.4
Revert "x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation"
usbnet: smsc95xx: disable carrier check while suspending
rxrpc: Fix lockup due to no error backoff after ack transmit error
net: smsc95xx: Fix MTU range
mlxsw: spectrum: Fix IP2ME CPU policer configuration
sctp: not increase stream's incnt before sending addstrm_in request
net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs
sctp: fix strchange_flags name for Stream Change Event
net: dsa: microchip: initialize mutex before use
net: qualcomm: rmnet: Fix incorrect assignment of real_dev
sctp: define SCTP_SS_DEFAULT for Stream schedulers
net: phy: realtek: fix RTL8201F sysfs name
net: dsa: mv88e6xxx: Fix clearing of stats counters
net/mlx5e: IPoIB, Reset QP after channels are closed
net/mlx5: IPSec, Fix the SA context hash key
l2tp: fix a sock refcnt leak in l2tp_tunnel_register
inet: frags: better deal with smp races
net/mlx5e: Removed unnecessary warnings in FEC caps query
net/mlx5e: Fix selftest for small MTUs
net/mlx5e: Always use the match level enum when parsing TC rule match
Revert "sctp: remove sctp_transport_pmtu_check"
net/mlx5e: RX, verify received packet size in Linear Striding RQ
net/mlx5e: Adjust to max number of channles when re-attaching
net/mlx5e: Claim TC hw offloads support only under a proper build config
net/mlx5e: Don't match on vlan non-existence if ethertype is wildcarded
tipc: fix link re-establish failure
net: sched: cls_flower: validate nested enc_opts_policy to avoid warning
net/sched: act_pedit: fix memory leak when IDR allocation fails
net: systemport: Protect stop from timeout
tuntap: fix multiqueue rx
tipc: fix lockdep warning when reinitilaizing sockets
tipc: don't assume linear buffer when reading ancillary data
tg3: Add PHY reset for 5717/5719/5720 in change ring and flow control paths
tcp: Fix SOF_TIMESTAMPING_RX_HARDWARE to use the latest timestamp during TCP coalescing
sctp: not allow to set asoc prsctp_enable by sockopt
net-gro: reset skb->pkt_type in napi_reuse_skb()
net: bcmgenet: protect stop from timeout
ipv6: Fix PMTU updates for UDP/raw sockets in presence of VRF
ipv6: fix a dst leak when removing its exception
ip_tunnel: don't force DF when MTU is locked
ibmvnic: fix accelerated VLAN handling
flow_dissector: do not dissect l4 ports for fragments

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.19.0-12.13

---------------
linux (4.19.0-12.13) disco; urgency=medium

  * linux: 4.19.0-12.13 -proposed tracker (LP: #1813664)

  * kernel oops in bcache module (LP: #1793901)
    - SAUCE: bcache: never writeback a discard operation

  * Disco update: 4.19.18 upstream stable release (LP: #1813611)
    - ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address
    - mlxsw: spectrum: Disable lag port TX before removing it
    - mlxsw: spectrum_switchdev: Set PVID correctly during VLAN deletion
    - net: dsa: mv88x6xxx: mv88e6390 errata
    - net, skbuff: do not prefer skb allocation fails early
    - qmi_wwan: add MTU default to qmap network interface
    - ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses
    - net: clear skb->tstamp in bridge forwarding path
    - netfilter: ipset: Allow matching on destination MAC address for mac and
      ipmac sets
    - gpio: pl061: Move irq_chip definition inside struct pl061
    - drm/amd/display: Guard against null stream_state in set_crc_source
    - drm/amdkfd: fix interrupt spin lock
    - ixgbe: allow IPsec Tx offload in VEPA mode
    - platform/x86: asus-wmi: Tell the EC the OS will handle the display off
      hotkey
    - e1000e: allow non-monotonic SYSTIM readings
    - usb: typec: tcpm: Do not disconnect link for self powered devices
    - selftests/bpf: enable (uncomment) all tests in test_libbpf.sh
    - of: overlay: add missing of_node_put() after add new node to changeset
    - writeback: don't decrement wb->refcnt if !wb->bdi
    - serial: set suppress_bind_attrs flag only if builtin
    - bpf: Allow narrow loads with offset > 0
    - ALSA: oxfw: add support for APOGEE duet FireWire
    - x86/mce: Fix -Wmissing-prototypes warnings
    - MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur
    - crypto: ecc - regularize scalar for scalar multiplication
    - arm64: perf: set suppress_bind_attrs flag to true
    - drm/atomic-helper: Complete fake_commit->flip_done potentially earlier
    - clk: meson: meson8b: fix incorrect divider mapping in cpu_scale_table
    - samples: bpf: fix: error handling regarding kprobe_events
    - usb: gadget: udc: renesas_usb3: add a safety connection way for
      forced_b_device
    - fpga: altera-cvp: fix probing for multiple FPGAs on the bus
    - selinux: always allow mounting submounts
    - ASoC: pcm3168a: Don't disable pcm3168a when CONFIG_PM defined
    - scsi: qedi: Check for session online before getting iSCSI TLV data.
    - drm/amdgpu: Reorder uvd ring init before uvd resume
    - rxe: IB_WR_REG_MR does not capture MR's iova field
    - efi/libstub: Disable some warnings for x86{,_64}
    - jffs2: Fix use of uninitialized delayed_work, lockdep breakage
    - clk: imx: make mux parent strings const
    - pstore/ram: Do not treat empty buffers as valid
    - media: uvcvideo: Refactor teardown of uvc on USB disconnect
    - powerpc/xmon: Fix invocation inside lock region
    - powerpc/pseries/cpuidle: Fix preempt warning
    - media: firewire: Fix app_info parameter type in avc_ca{,_app}_info
    - ASoC: use dma_ops of parent device for acp_audio_dma
    - media: ve...