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

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https://bugs.launchpad.net/bugs/2075175

Title:
  Focal update: v5.4.280 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:

         v5.4.280 upstream stable release
         from git://git.kernel.org/

  Compiler Attributes: Add __uninitialized macro
  drm/lima: fix shared irq handling on driver remove
  media: dvb: as102-fe: Fix as10x_register_addr packing
  media: dvb-usb: dib0700_devices: Add missing release_firmware()
  IB/core: Implement a limit on UMAD receive List
  scsi: qedf: Make qedf_execute_tmf() non-preemptible
  drm/amdgpu: Initialize timestamp for some legacy SOCs
  drm/amd/display: Skip finding free audio for unknown engine_id
  media: dw2102: Don't translate i2c read into write
  sctp: prefer struct_size over open coded arithmetic
  firmware: dmi: Stop decoding on broken entry
  Input: ff-core - prefer struct_size over open coded arithmetic
  net: dsa: mv88e6xxx: Correct check for empty list
  media: dvb-frontends: tda18271c2dd: Remove casting during div
  media: s2255: Use refcount_t instead of atomic_t for num_channels
  media: dvb-frontends: tda10048: Fix integer overflow
  i2c: i801: Annotate apanel_addr as __ro_after_init
  powerpc/64: Set _IO_BASE to POISON_POINTER_DELTA not 0 for CONFIG_PCI=n
  orangefs: fix out-of-bounds fsid access
  powerpc/xmon: Check cpu id in commands "c#", "dp#" and "dx#"
  jffs2: Fix potential illegal address access in jffs2_free_inode
  s390/pkey: Wipe sensitive data on failure
  tcp: tcp_mark_head_lost is only valid for sack-tcp
  tcp: add ece_ack flag to reno sack functions
  net: tcp better handling of reordering then loss cases
  UPSTREAM: tcp: fix DSACK undo in fast recovery to call tcp_try_to_open()
  tcp_metrics: validate source addr length
  wifi: wilc1000: fix ies_len type in connect path
  bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set()
  selftests: fix OOM in msg_zerocopy selftest
  selftests: make order checking verbose in msg_zerocopy selftest
  inet_diag: Initialize pad field in struct inet_diag_req_v2
  nilfs2: fix inode number range checks
  nilfs2: add missing check for inode numbers on directory entries
  mm: optimize the redundant loop of mm_update_owner_next()
  can: kvaser_usb: Explicitly initialize family in leafimx driver_info struct
  fsnotify: Do not generate events for O_PATH file descriptors
  Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again"
  drm/nouveau: fix null pointer dereference in nouveau_connector_get_modes
  drm/amdgpu/atomfirmware: silence UBSAN warning
  bnx2x: Fix multiple UBSAN array-index-out-of-bounds
  media: dw2102: fix a potential buffer overflow
  i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr
  ALSA: hda/realtek: Enable headset mic of JP-IK LEAP W502 with ALC897
  nvme-multipath: find NUMA path only for online numa-node
  nilfs2: fix incorrect inode allocation from reserved inodes
  filelock: fix potential use-after-free in posix_lock_inode
  fs/dcache: Re-use value stored to dentry->d_flags instead of re-reading
  vfs: don't mod negative dentry count when on shrinker list
  tcp: add TCP_INFO status for failed client TFO
  tcp: fix incorrect undo caused by DSACK of TLP retransmit
  octeontx2-af: Fix incorrect value output on error path in 
rvu_check_rsrc_availability()
  net: lantiq_etop: add blank line after declaration
  net: ethernet: lantiq_etop: fix double free in detach
  ppp: reject claimed-as-LCP but actually malformed packets
  udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
  s390: Mark psw in __load_psw_mask() as __unitialized
  ARM: davinci: Convert comma to semicolon
  octeontx2-af: fix detection of IP layer
  USB: serial: option: add Telit generic core-dump composition
  USB: serial: option: add Telit FN912 rmnet compositions
  USB: serial: option: add Fibocom FM350-GL
  USB: serial: option: add support for Foxconn T99W651
  USB: serial: option: add Netprisma LCUK54 series modules
  USB: serial: option: add Rolling RW350-GL variants
  USB: Add USB_QUIRK_NO_SET_INTF quirk for START BP-850k
  usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()
  USB: core: Fix duplicate endpoint bug by clearing reserved bits in the 
descriptor
  hpet: Support 32-bit userspace
  nvmem: meson-efuse: Fix return value of nvmem callbacks
  ALSA: hda/realtek: Limit mic boost on VAIO PRO PX
  libceph: fix race between delayed_work() and ceph_monc_stop()
  SUNRPC: Fix RPC client cleaned up the freed pipefs dentries
  tcp: refactor tcp_retransmit_timer()
  net: tcp: fix unexcepted socket die when snd_wnd is 0
  tcp: use signed arithmetic in tcp_rtx_probe0_timed_out()
  tcp: avoid too many retransmit packets
  nilfs2: fix kernel bug on rename operation of broken directory
  i2c: rcar: bring hardware to known state when probing
  Linux 5.4.280
  UBUNTU: Upstream stable to v5.4.280

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