Comment 0 for bug 2049935

    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:

       v5.4.264 upstream stable release
       from git://git.kernel.org/

Linux 5.4.264
devcoredump: Send uevent once devcd is ready
devcoredump : Serialize devcd_del work
smb: client: fix potential NULL deref in parse_dfs_referrals()
cifs: Fix non-availability of dedup breaking generic/304
Revert "btrfs: add dmesg output for first mount and last unmount of a filesystem"
tools headers UAPI: Sync linux/perf_event.h with the kernel sources
drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group
psample: Require 'CAP_NET_ADMIN' when joining "packets" group
genetlink: add CAP_NET_ADMIN test for multicast bind
netlink: don't call ->netlink_bind with table lock held
io_uring/af_unix: disable sending io_uring over sockets
nilfs2: fix missing error check for sb_set_blocksize call
KVM: s390/mm: Properly reset no-dat
x86/CPU/AMD: Check vendor in the AMD microcode callback
serial: 8250_omap: Add earlycon support for the AM654 UART controller
serial: sc16is7xx: address RX timeout interrupt errata
ARM: PL011: Fix DMA support
usb: typec: class: fix typec_altmode_put_partner to put plugs
parport: Add support for Brainboxes IX/UC/PX parallel cards
usb: gadget: f_hid: fix report descriptor allocation
mmc: sdhci-sprd: Fix vqmmc not shutting down after the card was pulled
mmc: core: add helpers mmc_regulator_enable/disable_vqmmc
gpiolib: sysfs: Fix error handling on failed export
perf: Fix perf_event_validate_size()
perf/core: Add a new read format to get a number of lost samples
arm64: dts: mediatek: mt8173-evb: Fix regulator-fixed node names
arm64: dts: mediatek: mt7622: fix memory node warning check
packet: Move reference count in packet_sock to atomic_long_t
tracing: Fix a possible race when disabling buffered events
tracing: Fix incomplete locking when disabling buffered events
tracing: Always update snapshot buffer size
nilfs2: prevent WARNING in nilfs_sufile_set_segment_usage()
ALSA: pcm: fix out-of-bounds in snd_pcm_state_names
ARM: dts: imx7: Declare timers compatible with fsl,imx6dl-gpt
ARM: dts: imx: make gpt node name generic
ARM: imx: Check return value of devm_kasprintf in imx_mmdc_perf_init
scsi: be2iscsi: Fix a memleak in beiscsi_init_wrb_handle()
tracing: Fix a warning when allocating buffered events fails
ASoC: wm_adsp: fix memleak in wm_adsp_buffer_populate
hwmon: (acpi_power_meter) Fix 4.29 MW bug
RDMA/bnxt_re: Correct module description string
bpf: sockmap, updating the sg structure should also update curr
tcp: do not accept ACK of bytes we never sent
netfilter: xt_owner: Fix for unsafe access of sk->sk_socket
net: hns: fix fake link up on xge port
ipv4: ip_gre: Avoid skb_pull() failure in ipgre_xmit()
arcnet: restoring support for multiple Sohard Arcnet cards
net: arcnet: com20020 fix error handling
net: arcnet: Fix RESET flag handling
hv_netvsc: rndis_filter needs to select NLS
ipv6: fix potential NULL deref in fib6_add()
of: dynamic: Fix of_reconfig_get_state_change() return value documentation
of: Add missing 'Return' section in kerneldoc comments
of: Fix kerneldoc output formatting
of: base: Fix some formatting issues and provide missing descriptions
of/irq: Make of_msi_map_rid() PCI bus agnostic
of/irq: make of_msi_map_get_device_domain() bus agnostic
of/iommu: Make of_map_rid() PCI agnostic
ACPI/IORT: Make iort_msi_map_rid() PCI agnostic
ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic
of: base: Add of_get_cpu_state_node() to get idle states for a CPU node
drm/amdgpu: correct chunk_ptr to a pointer to chunk.
kconfig: fix memory leak from range properties
tg3: Increment tx_dropped in tg3_tso_bug()
tg3: Move the [rt]x_dropped counters to tg3_napi
netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test
hrtimers: Push pending hrtimers away from outgoing CPU earlier