** Changed in: linux (Ubuntu Focal)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/2098439

Title:
  Focal update: v5.4.290 upstream stable release

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  Fix Committed

Bug description:
  
      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:

         v5.4.290 upstream stable release
         from git://git.kernel.org/

  jbd2: flush filesystem device before updating tail sequence
  dm array: fix releasing a faulty array block twice in dm_array_cursor_end
  dm array: fix unreleased btree blocks on closing a faulty array cursor
  dm array: fix cursor index when skipping across block boundaries
  ieee802154: ca8210: Add missing check for kfifo_alloc() in ca8210_probe()
  net: 802: LLC+SNAP OID:PID lookup on start of skb data
  tcp/dccp: complete lockless accesses to sk->sk_max_ack_backlog
  tcp/dccp: allow a connection when sk_max_ack_backlog is zero
  net_sched: cls_flow: validate TCA_FLOW_RSHIFT attribute
  tls: Fix tls_sw_sendmsg error handling
  dm thin: make get_first_thin use rcu-safe list first function
  sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy
  sctp: sysctl: auth_enable: avoid using current->nsproxy
  drm/amd/display: Add check for granularity in dml ceil/floor helpers
  ACPI: resource: Add TongFang GM5HG0A to irq1_edge_low_force_override[]
  ACPI: resource: Add Asus Vivobook X1504VAP to irq1_level_low_skip_override[]
  drm/amd/display: increase MAX_SURFACES to the value supported by hw
  USB: serial: option: add MeiG Smart SRM815
  USB: serial: option: add Neoway N723-EA support
  staging: iio: ad9834: Correct phase range check
  staging: iio: ad9832: Correct phase range check
  usb-storage: Add max sectors quirk for Nokia 208
  USB: serial: cp210x: add Phoenix Contact UPS Device
  usb: gadget: u_serial: Disable ep before setting port to null to fix the 
crash caused by port being null
  USB: usblp: return error when setting unsupported protocol
  USB: core: Disable LPM only for non-suspended ports
  usb: fix reference leak in usb_new_device()
  usb: gadget: f_fs: Remove WARN_ON in functionfs_bind
  iio: pressure: zpa2326: fix information leak in triggered buffer
  iio: dummy: iio_simply_dummy_buffer: fix information leak in triggered buffer
  iio: light: vcnl4035: fix information leak in triggered buffer
  iio: imu: kmx61: fix information leak in triggered buffer
  iio: adc: ti-ads8688: fix information leak in triggered buffer
  iio: gyro: fxas21002c: Fix missing data update in trigger handler
  iio: adc: ti-ads124s08: Use gpiod_set_value_cansleep()
  iio: adc: at91: call input_free_device() on allocated iio_dev
  iio: inkern: call iio_device_put() only on mapped devices
  arm64: dts: rockchip: fix defines in pd_vio node for rk3399
  arm64: dts: rockchip: fix pd_tcpc0 and pd_tcpc1 node position on rk3399
  arm64: dts: rockchip: add #power-domain-cells to power domain nodes
  arm64: dts: rockchip: add hevc power domain clock to rk3328
  phy: core: fix code style in devm_of_phy_provider_unregister
  phy: core: Fix that API devm_of_phy_provider_unregister() fails to unregister 
the phy provider
  ocfs2: correct return value of ocfs2_local_free_info()
  ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv
  sctp: sysctl: rto_min/max: avoid using current->nsproxy
  net: ethernet: ti: cpsw_ale: Fix cpsw_ale_get_field()
  net: net_namespace: Optimize the code
  net: add exit_batch_rtnl() method
  gtp: use exit_batch_rtnl() method
  gtp: Use for_each_netdev_rcu() in gtp_genl_dump_pdp().
  gtp: Destroy device along with udp socket's netns dismantle.
  nfp: bpf: prevent integer overflow in nfp_bpf_event_output()
  drm/v3d: Ensure job pointer is set to NULL after job completion
  i2c: mux: demux-pinctrl: check initial mux selection, too
  mac802154: check local interfaces before deleting sdata list
  hfs: Sanity check the root record
  kheaders: Ignore silly-rename files
  poll_wait: add mb() to fix theoretical race between waitqueue_active() and 
.poll()
  nvmet: propagate npwg topology
  net: ethernet: xgbe: re-add aneg to supported features in PHY quirks
  fs/proc: fix softlockup in __read_vmcore (part 2)
  irqchip/gic-v3: Handle CPU_PM_ENTER_FAILED correctly
  hrtimers: Handle CPU state correctly on hotplug
  ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()
  scsi: sg: Fix slab-use-after-free read in sg_release()
  net: fix data-races around sk->sk_forward_alloc
  ASoC: wm8994: Add depends on MFD core
  scsi: iscsi: Fix redundant response for ISCSI_UEVENT_GET_HOST_STATS request
  irqchip/sunxi-nmi: Add missing SKIP_WAKE flag
  gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag
  m68k: Update ->thread.esp0 before calling syscall_trace() in ret_from_signal
  m68k: Add missing mmap_read_lock() to sys_cacheflush()
  signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die
  net: xen-netback: hash.c: Use built-in RCU list checking
  net/xen-netback: prevent UAF in xenvif_flush_hash()
  vfio/platform: check the bounds of read/write syscalls
  ext4: avoid ext4_error()'s caused by ENOMEM in the truncate path
  ext4: fix slab-use-after-free in ext4_split_extent_at()
  USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()
  Revert "usb: gadget: u_serial: Disable ep before setting port to null to fix 
the crash caused by port being null"
  Input: atkbd - map F23 key to support default copilot shortcut
  Input: xpad - add unofficial Xbox 360 wireless receiver clone
  Input: xpad - add support for wooting two he (arm)
  drm/v3d: Assign job pointer to NULL before signaling the fence
  xhci: use pm_ptr() instead of #ifdef for CONFIG_PM conditionals
  Partial revert of xhci: use pm_ptr() instead #ifdef for CONFIG_PM conditionals
  Linux 5.4.290
  UBUNTU: Upstream stable to v5.4.290

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