[ubuntu/bionic-updates] linux-azure-4.15_4.15.0-1112.125_amd64.tar.gz - (Accepted)

Marcelo Henrique Cerri marcelo.cerri at canonical.com
Thu Apr 15 18:56:30 UTC 2021


linux-azure-4.15 (4.15.0-1112.125) bionic; urgency=medium

  * bionic/linux-azure-4.15: 4.15.0-1112.125 -proposed tracker (LP: #1919518)

  * Please trust Canonical Livepatch Service kmod signing key (LP: #1898716)
    - [Config] azure: enable CONFIG_MODVERSIONS and CONFIG_ASM_MODVERSIONS
    - [Packaging] build canonical-certs.pem from branch/arch certs

  * Enforce CONFIG_DRM_BOCHS=m (LP: #1916290)
    - [Config] azure: Keep CONFIG_DRM_BOCHS disabled

  * linux-azure: Install PMEM modules by default (LP: #1921411)
    - [Packaging] azure: Move PMEM related modules to linux-modules

  * Fix close/open corner cases (LP: #1918714)
    - CIFS: Close open handle after interrupted close
    - CIFS: Do not miss cancelled OPEN responses
    - cifs: Fix memory allocation in __smb2_handle_cancelled_cmd()

  [ Ubuntu: 4.15.0-141.145 ]

  * bionic/linux: 4.15.0-141.145 -proposed tracker (LP: #1919536)
  * binary assembly failures with CONFIG_MODVERSIONS present (LP: #1919315)
    - [Packaging] quiet (nomially) benign errors in BUILD script
  * selftests: bpf verifier fails after sanitize_ptr_alu fixes (LP: #1920995)
    - bpf: Simplify alu_limit masking for pointer arithmetic
    - bpf: Add sanity check for upper ptr_limit
    - bpf, selftests: Fix up some test_verifier cases for unprivileged
  * Packaging resync (LP: #1786013)
    - update dkms package versions
  * CVE-2018-13095
    - xfs: More robust inode extent count validation
  * i40e PF reset due to incorrect MDD event (LP: #1772675)
    - i40e: change behavior on PF in response to MDD event
  * Bionic update: upstream stable patchset 2021-03-09 (LP: #1918330)
    - ACPI: sysfs: Prefer "compatible" modalias
    - ARM: dts: imx6qdl-gw52xx: fix duplicate regulator naming
    - wext: fix NULL-ptr-dereference with cfg80211's lack of commit()
    - net: usb: qmi_wwan: added support for Thales Cinterion PLSx3 modem family
    - drivers: soc: atmel: Avoid calling at91_soc_init on non AT91 SoCs
    - drivers: soc: atmel: add null entry at the end of at91_soc_allowed_list[]
    - KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in
      intel_arch_events[]
    - KVM: x86: get smi pending status correctly
    - xen: Fix XenStore initialisation for XS_LOCAL
    - leds: trigger: fix potential deadlock with libata
    - mt7601u: fix kernel crash unplugging the device
    - mt7601u: fix rx buffer refcounting
    - xen-blkfront: allow discard-* nodes to be optional
    - ARM: imx: build suspend-imx6.S with arm instruction set
    - netfilter: nft_dynset: add timeout extension to template
    - xfrm: Fix oops in xfrm_replay_advance_bmp
    - RDMA/cxgb4: Fix the reported max_recv_sge value
    - iwlwifi: pcie: use jiffies for memory read spin time limit
    - iwlwifi: pcie: reschedule in long-running memory reads
    - mac80211: pause TX while changing interface type
    - can: dev: prevent potential information leak in can_fill_info()
    - x86/entry/64/compat: Preserve r8-r11 in int $0x80
    - x86/entry/64/compat: Fix "x86/entry/64/compat: Preserve r8-r11 in int $0x80"
    - iommu/vt-d: Gracefully handle DMAR units with no supported address widths
    - iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built
    - NFC: fix resource leak when target index is invalid
    - NFC: fix possible resource leak
    - team: protect features update by RCU to avoid deadlock
    - tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN
    - kernel: kexec: remove the lock operation of system_transition_mutex
    - PM: hibernate: flush swap writer after marking
    - pNFS/NFSv4: Fix a layout segment leak in pnfs_layout_process()
    - net/mlx5: Fix memory leak on flow table creation error flow
    - rxrpc: Fix memory leak in rxrpc_lookup_local
    - net: dsa: bcm_sf2: put device node before return
    - ibmvnic: Ensure that CRQ entry read are correctly ordered
    - ACPI: thermal: Do not call acpi_thermal_check() directly
    - net_sched: gen_estimator: support large ewma log
    - phy: cpcap-usb: Fix warning for missing regulator_disable
    - x86: __always_inline __{rd,wr}msr()
    - scsi: scsi_transport_srp: Don't block target in failfast state
    - scsi: libfc: Avoid invoking response handler twice if ep is already
      completed
    - mac80211: fix fast-rx encryption check
    - scsi: ibmvfc: Set default timeout to avoid crash during migration
    - objtool: Don't fail on missing symbol table
    - kthread: Extract KTHREAD_IS_PER_CPU
    - workqueue: Restrict affinity change to rescuer
    - USB: serial: cp210x: add pid/vid for WSDA-200-USB
    - USB: serial: cp210x: add new VID/PID for supporting Teraoka AD2000
    - USB: serial: option: Adding support for Cinterion MV31
    - arm64: dts: ls1046a: fix dcfg address range
    - net: lapb: Copy the skb before sending a packet
    - elfcore: fix building with clang
    - USB: gadget: legacy: fix an error code in eth_bind()
    - USB: usblp: don't call usb_set_interface if there's a single alt
    - usb: dwc2: Fix endpoint direction check in ep_from_windex
    - ovl: fix dentry leak in ovl_get_redirect
    - mac80211: fix station rate table updates on assoc
    - kretprobe: Avoid re-registration of the same kretprobe earlier
    - xhci: fix bounce buffer usage for non-sg list case
    - cifs: report error instead of invalid when revalidating a dentry fails
    - smb3: Fix out-of-bounds bug in SMB2_negotiate()
    - mmc: core: Limit retries when analyse of SDIO tuples fails
    - nvme-pci: avoid the deepest sleep state on Kingston A2000 SSDs
    - ARM: footbridge: fix dc21285 PCI configuration accessors
    - mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page
    - mm: hugetlb: fix a race between isolating and freeing page
    - mm: hugetlb: remove VM_BUG_ON_PAGE from page_huge_active
    - mm: thp: fix MADV_REMOVE deadlock on shmem THP
    - x86/build: Disable CET instrumentation in the kernel
    - x86/apic: Add extra serialization for non-serializing MSRs
    - Input: xpad - sync supported devices with fork on GitHub
    - iommu/vt-d: Do not use flush-queue when caching-mode is on
    - net: dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
    - net: mvpp2: TCAM entry enable should be written after SRAM data
    - memblock: do not start bottom-up allocations with kernel_end
    - usb: renesas_usbhs: Clear pipe running flag in usbhs_pkt_pop()
    - genirq/msi: Activate Multi-MSI early when MSI_FLAG_ACTIVATE_EARLY is set
    - KVM: SVM: Treat SVM as unsupported when running as an SEV guest
    - md: Set prev_flush_start and flush_bio in an atomic way
    - net: ip_tunnel: fix mtu calculation
    - block: fix NULL pointer dereference in register_disk
    - remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load
    - remoteproc: qcom_q6v5_mss: Validate MBA firmware size before load
    - af_key: relax availability checks for skb size calculation
    - pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
    - iwlwifi: mvm: take mutex for calling iwl_mvm_get_sync_time()
    - iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap
    - iwlwifi: mvm: guard against device removal in reprobe
    - SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
    - SUNRPC: Handle 0 length opaque XDR object data properly
    - lib/string: Add strscpy_pad() function
    - include/trace/events/writeback.h: fix -Wstringop-truncation warnings
    - memcg: fix a crash in wb_workfn when a device disappears
    - blk-mq: don't hold q->sysfs_lock in blk_mq_map_swqueue
    - squashfs: add more sanity checks in id lookup
    - squashfs: add more sanity checks in inode lookup
    - squashfs: add more sanity checks in xattr id lookup
  * SRU: Add FUA support for XFS (LP: #1917918)
    - block: add blk_queue_fua() helper function
    - xfs: move generic_write_sync calls inwards
    - iomap: iomap_dio_rw() handles all sync writes
    - iomap: Use FUA for pure data O_DSYNC DIO writes
  * CVE-2021-3348
    - nbd: freeze the queue while we're adding connections
  * Bionic kernel 4.15.0-136 causes dosemu2 (with kvm mode) freezes due to lack
    of KVM patch (LP: #1917138)
    - KVM: x86: handle !lapic_in_kernel case in kvm_cpu_*_extint
  * switch LRM to be signed using the Ubuntu Drivers signing key (LP: #1917034)
    - [Packaging] sync dkms-build to updated API
  * Bionic update: upstream stable patchset 2021-02-26 (LP: #1917093)
    - i2c: bpmp-tegra: Ignore unknown I2C_M flags
    - ALSA: seq: oss: Fix missing error check in snd_seq_oss_synth_make_info()
    - ALSA: hda/via: Add minimum mute flag
    - ACPI: scan: Make acpi_bus_get_device() clear return pointer on error
    - mmc: sdhci-xenon: fix 1.8v regulator stabilization
    - dm: avoid filesystem lookup in dm_get_dev_t()
    - drm/atomic: put state on error path
    - ASoC: Intel: haswell: Add missing pm_ops
    - scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback
    - xen: Fix event channel callback via INTX/GSI
    - drm/nouveau/bios: fix issue shadowing expansion ROMs
    - drm/nouveau/privring: ack interrupts the same way as RM
    - drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields
    - i2c: octeon: check correct size of maximum RECV_LEN packet
    - can: dev: can_restart: fix use after free bug
    - can: vxcan: vxcan_xmit: fix use after free bug
    - iio: ad5504: Fix setting power-down state
    - irqchip/mips-cpu: Set IPI domain parent chip
    - intel_th: pci: Add Alder Lake-P support
    - stm class: Fix module init return on allocation failure
    - ehci: fix EHCI host controller initialization sequence
    - USB: ehci: fix an interrupt calltrace error
    - usb: udc: core: Use lock when write to soft_connect
    - usb: bdc: Make bdc pci driver depend on BROKEN
    - [Config] updateconfigs for USB_BDC_PCI
    - xhci: make sure TRB is fully written before giving it to the controller
    - xhci: tegra: Delay for disabling LFPS detector
    - compiler.h: Raise minimum version of GCC to 5.1 for arm64
    - netfilter: rpfilter: mask ecn bits before fib lookup
    - sh: dma: fix kconfig dependency for G2_DMA
    - sh_eth: Fix power down vs. is_opened flag ordering
    - skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too
    - udp: mask TOS bits in udp_v4_early_demux()
    - ipv6: create multicast route with RTPROT_KERNEL
    - net_sched: avoid shift-out-of-bounds in tcindex_set_parms()
    - net: dsa: b53: fix an off by one in checking "vlan->vid"
    - gpio: mvebu: fix pwm .get_state period calculation
    - Revert "mm/slub: fix a memory leak in sysfs_slab_add()"
    - futex: Ensure the correct return value from futex_lock_pi()
    - futex: Replace pointless printk in fixup_owner()
    - futex: Provide and use pi_state_update_owner()
    - rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
    - futex: Use pi_state_update_owner() in put_pi_state()
    - futex: Simplify fixup_pi_state_owner()
    - futex: Handle faults correctly for PI futexes
    - tracing: Fix race in trace_open and buffer resize call
    - fs: move I_DIRTY_INODE to fs.h
    - writeback: Drop I_DIRTY_TIME_EXPIRE
    - fs: fix lazytime expiration handling in __writeback_single_inode()
    - mmc: core: don't initialize block size from ext_csd if not present
    - scsi: qedi: Correct max length of CHAP secret
    - riscv: Fix kernel time_init()
    - HID: Ignore battery for Elan touchscreen on ASUS UX550
    - clk: tegra30: Add hda clock default rates to clock driver
    - drm/nouveau/mmu: fix vram heap sizing
    - scsi: megaraid_sas: Fix MEGASAS_IOC_FIRMWARE regression
    - can: peak_usb: fix use after free bugs
    - serial: mvebu-uart: fix tx lost characters at power off
    - driver core: Extend device_is_dependent()
    - net_sched: reject silly cell_log in qdisc_get_rtab()
    - tools: Factor HOSTCC, HOSTLD, HOSTAR definitions
  * Enforce CONFIG_DRM_BOCHS=m (LP: #1916290)
    - [Config] Enforce CONFIG_DRM_BOCHS=m
  * Please trust Canonical Livepatch Service kmod signing key (LP: #1898716)
    - [Config] enable CONFIG_MODVERSIONS=y
    - [Packaging] build canonical-certs.pem from branch/arch certs
    - [Config] add Canonical Livepatch Service key to SYSTEM_TRUSTED_KEYS
    - [Config] add ubuntu-drivers key to SYSTEM_TRUSTED_KEYS

Date: Mon, 29 Mar 2021 11:58:33 -0300
Changed-By: Marcelo Henrique Cerri <marcelo.cerri at canonical.com>
Maintainer: Launchpad Build Daemon <buildd at lgw01-amd64-011.buildd>

-------------- next part --------------
Format: 1.8
Date: Mon, 29 Mar 2021 11:58:33 -0300
Source: linux-azure-4.15
Binary: linux-azure-4.15-headers-4.15.0-1112 linux-azure-4.15-tools-4.15.0-1112 linux-azure-4.15-cloud-tools-4.15.0-1112 linux-image-unsigned-4.15.0-1112-azure linux-modules-4.15.0-1112-azure linux-modules-extra-4.15.0-1112-azure linux-headers-4.15.0-1112-azure linux-image-unsigned-4.15.0-1112-azure-dbgsym linux-tools-4.15.0-1112-azure linux-cloud-tools-4.15.0-1112-azure linux-udebs-azure linux-buildinfo-4.15.0-1112-azure
Architecture: amd64 all amd64_translations
Version: 4.15.0-1112.125
Distribution: bionic
Urgency: medium
Maintainer: Launchpad Build Daemon <buildd at lgw01-amd64-011.buildd>
Changed-By: Marcelo Henrique Cerri <marcelo.cerri at canonical.com>
Description:
 linux-azure-4.15-cloud-tools-4.15.0-1112 - Linux kernel version specific cloud tools for version 4.15.0-1112
 linux-azure-4.15-headers-4.15.0-1112 - Header files related to Linux kernel version 4.15.0
 linux-azure-4.15-tools-4.15.0-1112 - Linux kernel version specific tools for version 4.15.0-1112
 linux-buildinfo-4.15.0-1112-azure - Linux kernel buildinfo for version 4.15.0 on 64 bit x86 SMP
 linux-cloud-tools-4.15.0-1112-azure - Linux kernel version specific cloud tools for version 4.15.0-1112
 linux-headers-4.15.0-1112-azure - Linux kernel headers for version 4.15.0 on 64 bit x86 SMP
 linux-image-unsigned-4.15.0-1112-azure - Linux kernel image for version 4.15.0 on 64 bit x86 SMP
 linux-image-unsigned-4.15.0-1112-azure-dbgsym - Linux kernel debug image for version 4.15.0 on 64 bit x86 SMP
 linux-modules-4.15.0-1112-azure - Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP
 linux-modules-extra-4.15.0-1112-azure - Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP
 linux-tools-4.15.0-1112-azure - Linux kernel version specific tools for version 4.15.0-1112
 linux-udebs-azure - Metapackage depending on kernel udebs (udeb)
Launchpad-Bugs-Fixed: 1772675 1786013 1898716 1916290 1917034 1917093 1917138 1917918 1918330 1918714 1919315 1919518 1919536 1920995 1921411
Changes:
 linux-azure-4.15 (4.15.0-1112.125) bionic; urgency=medium
 .
   * bionic/linux-azure-4.15: 4.15.0-1112.125 -proposed tracker (LP: #1919518)
 .
   * Please trust Canonical Livepatch Service kmod signing key (LP: #1898716)
     - [Config] azure: enable CONFIG_MODVERSIONS and CONFIG_ASM_MODVERSIONS
     - [Packaging] build canonical-certs.pem from branch/arch certs
 .
   * Enforce CONFIG_DRM_BOCHS=m (LP: #1916290)
     - [Config] azure: Keep CONFIG_DRM_BOCHS disabled
 .
   * linux-azure: Install PMEM modules by default (LP: #1921411)
     - [Packaging] azure: Move PMEM related modules to linux-modules
 .
   * Fix close/open corner cases (LP: #1918714)
     - CIFS: Close open handle after interrupted close
     - CIFS: Do not miss cancelled OPEN responses
     - cifs: Fix memory allocation in __smb2_handle_cancelled_cmd()
 .
   [ Ubuntu: 4.15.0-141.145 ]
 .
   * bionic/linux: 4.15.0-141.145 -proposed tracker (LP: #1919536)
   * binary assembly failures with CONFIG_MODVERSIONS present (LP: #1919315)
     - [Packaging] quiet (nomially) benign errors in BUILD script
   * selftests: bpf verifier fails after sanitize_ptr_alu fixes (LP: #1920995)
     - bpf: Simplify alu_limit masking for pointer arithmetic
     - bpf: Add sanity check for upper ptr_limit
     - bpf, selftests: Fix up some test_verifier cases for unprivileged
   * Packaging resync (LP: #1786013)
     - update dkms package versions
   * CVE-2018-13095
     - xfs: More robust inode extent count validation
   * i40e PF reset due to incorrect MDD event (LP: #1772675)
     - i40e: change behavior on PF in response to MDD event
   * Bionic update: upstream stable patchset 2021-03-09 (LP: #1918330)
     - ACPI: sysfs: Prefer "compatible" modalias
     - ARM: dts: imx6qdl-gw52xx: fix duplicate regulator naming
     - wext: fix NULL-ptr-dereference with cfg80211's lack of commit()
     - net: usb: qmi_wwan: added support for Thales Cinterion PLSx3 modem family
     - drivers: soc: atmel: Avoid calling at91_soc_init on non AT91 SoCs
     - drivers: soc: atmel: add null entry at the end of at91_soc_allowed_list[]
     - KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in
       intel_arch_events[]
     - KVM: x86: get smi pending status correctly
     - xen: Fix XenStore initialisation for XS_LOCAL
     - leds: trigger: fix potential deadlock with libata
     - mt7601u: fix kernel crash unplugging the device
     - mt7601u: fix rx buffer refcounting
     - xen-blkfront: allow discard-* nodes to be optional
     - ARM: imx: build suspend-imx6.S with arm instruction set
     - netfilter: nft_dynset: add timeout extension to template
     - xfrm: Fix oops in xfrm_replay_advance_bmp
     - RDMA/cxgb4: Fix the reported max_recv_sge value
     - iwlwifi: pcie: use jiffies for memory read spin time limit
     - iwlwifi: pcie: reschedule in long-running memory reads
     - mac80211: pause TX while changing interface type
     - can: dev: prevent potential information leak in can_fill_info()
     - x86/entry/64/compat: Preserve r8-r11 in int $0x80
     - x86/entry/64/compat: Fix "x86/entry/64/compat: Preserve r8-r11 in int $0x80"
     - iommu/vt-d: Gracefully handle DMAR units with no supported address widths
     - iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built
     - NFC: fix resource leak when target index is invalid
     - NFC: fix possible resource leak
     - team: protect features update by RCU to avoid deadlock
     - tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN
     - kernel: kexec: remove the lock operation of system_transition_mutex
     - PM: hibernate: flush swap writer after marking
     - pNFS/NFSv4: Fix a layout segment leak in pnfs_layout_process()
     - net/mlx5: Fix memory leak on flow table creation error flow
     - rxrpc: Fix memory leak in rxrpc_lookup_local
     - net: dsa: bcm_sf2: put device node before return
     - ibmvnic: Ensure that CRQ entry read are correctly ordered
     - ACPI: thermal: Do not call acpi_thermal_check() directly
     - net_sched: gen_estimator: support large ewma log
     - phy: cpcap-usb: Fix warning for missing regulator_disable
     - x86: __always_inline __{rd,wr}msr()
     - scsi: scsi_transport_srp: Don't block target in failfast state
     - scsi: libfc: Avoid invoking response handler twice if ep is already
       completed
     - mac80211: fix fast-rx encryption check
     - scsi: ibmvfc: Set default timeout to avoid crash during migration
     - objtool: Don't fail on missing symbol table
     - kthread: Extract KTHREAD_IS_PER_CPU
     - workqueue: Restrict affinity change to rescuer
     - USB: serial: cp210x: add pid/vid for WSDA-200-USB
     - USB: serial: cp210x: add new VID/PID for supporting Teraoka AD2000
     - USB: serial: option: Adding support for Cinterion MV31
     - arm64: dts: ls1046a: fix dcfg address range
     - net: lapb: Copy the skb before sending a packet
     - elfcore: fix building with clang
     - USB: gadget: legacy: fix an error code in eth_bind()
     - USB: usblp: don't call usb_set_interface if there's a single alt
     - usb: dwc2: Fix endpoint direction check in ep_from_windex
     - ovl: fix dentry leak in ovl_get_redirect
     - mac80211: fix station rate table updates on assoc
     - kretprobe: Avoid re-registration of the same kretprobe earlier
     - xhci: fix bounce buffer usage for non-sg list case
     - cifs: report error instead of invalid when revalidating a dentry fails
     - smb3: Fix out-of-bounds bug in SMB2_negotiate()
     - mmc: core: Limit retries when analyse of SDIO tuples fails
     - nvme-pci: avoid the deepest sleep state on Kingston A2000 SSDs
     - ARM: footbridge: fix dc21285 PCI configuration accessors
     - mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page
     - mm: hugetlb: fix a race between isolating and freeing page
     - mm: hugetlb: remove VM_BUG_ON_PAGE from page_huge_active
     - mm: thp: fix MADV_REMOVE deadlock on shmem THP
     - x86/build: Disable CET instrumentation in the kernel
     - x86/apic: Add extra serialization for non-serializing MSRs
     - Input: xpad - sync supported devices with fork on GitHub
     - iommu/vt-d: Do not use flush-queue when caching-mode is on
     - net: dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
     - net: mvpp2: TCAM entry enable should be written after SRAM data
     - memblock: do not start bottom-up allocations with kernel_end
     - usb: renesas_usbhs: Clear pipe running flag in usbhs_pkt_pop()
     - genirq/msi: Activate Multi-MSI early when MSI_FLAG_ACTIVATE_EARLY is set
     - KVM: SVM: Treat SVM as unsupported when running as an SEV guest
     - md: Set prev_flush_start and flush_bio in an atomic way
     - net: ip_tunnel: fix mtu calculation
     - block: fix NULL pointer dereference in register_disk
     - remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load
     - remoteproc: qcom_q6v5_mss: Validate MBA firmware size before load
     - af_key: relax availability checks for skb size calculation
     - pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
     - iwlwifi: mvm: take mutex for calling iwl_mvm_get_sync_time()
     - iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap
     - iwlwifi: mvm: guard against device removal in reprobe
     - SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
     - SUNRPC: Handle 0 length opaque XDR object data properly
     - lib/string: Add strscpy_pad() function
     - include/trace/events/writeback.h: fix -Wstringop-truncation warnings
     - memcg: fix a crash in wb_workfn when a device disappears
     - blk-mq: don't hold q->sysfs_lock in blk_mq_map_swqueue
     - squashfs: add more sanity checks in id lookup
     - squashfs: add more sanity checks in inode lookup
     - squashfs: add more sanity checks in xattr id lookup
   * SRU: Add FUA support for XFS (LP: #1917918)
     - block: add blk_queue_fua() helper function
     - xfs: move generic_write_sync calls inwards
     - iomap: iomap_dio_rw() handles all sync writes
     - iomap: Use FUA for pure data O_DSYNC DIO writes
   * CVE-2021-3348
     - nbd: freeze the queue while we're adding connections
   * Bionic kernel 4.15.0-136 causes dosemu2 (with kvm mode) freezes due to lack
     of KVM patch (LP: #1917138)
     - KVM: x86: handle !lapic_in_kernel case in kvm_cpu_*_extint
   * switch LRM to be signed using the Ubuntu Drivers signing key (LP: #1917034)
     - [Packaging] sync dkms-build to updated API
   * Bionic update: upstream stable patchset 2021-02-26 (LP: #1917093)
     - i2c: bpmp-tegra: Ignore unknown I2C_M flags
     - ALSA: seq: oss: Fix missing error check in snd_seq_oss_synth_make_info()
     - ALSA: hda/via: Add minimum mute flag
     - ACPI: scan: Make acpi_bus_get_device() clear return pointer on error
     - mmc: sdhci-xenon: fix 1.8v regulator stabilization
     - dm: avoid filesystem lookup in dm_get_dev_t()
     - drm/atomic: put state on error path
     - ASoC: Intel: haswell: Add missing pm_ops
     - scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback
     - xen: Fix event channel callback via INTX/GSI
     - drm/nouveau/bios: fix issue shadowing expansion ROMs
     - drm/nouveau/privring: ack interrupts the same way as RM
     - drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields
     - i2c: octeon: check correct size of maximum RECV_LEN packet
     - can: dev: can_restart: fix use after free bug
     - can: vxcan: vxcan_xmit: fix use after free bug
     - iio: ad5504: Fix setting power-down state
     - irqchip/mips-cpu: Set IPI domain parent chip
     - intel_th: pci: Add Alder Lake-P support
     - stm class: Fix module init return on allocation failure
     - ehci: fix EHCI host controller initialization sequence
     - USB: ehci: fix an interrupt calltrace error
     - usb: udc: core: Use lock when write to soft_connect
     - usb: bdc: Make bdc pci driver depend on BROKEN
     - [Config] updateconfigs for USB_BDC_PCI
     - xhci: make sure TRB is fully written before giving it to the controller
     - xhci: tegra: Delay for disabling LFPS detector
     - compiler.h: Raise minimum version of GCC to 5.1 for arm64
     - netfilter: rpfilter: mask ecn bits before fib lookup
     - sh: dma: fix kconfig dependency for G2_DMA
     - sh_eth: Fix power down vs. is_opened flag ordering
     - skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too
     - udp: mask TOS bits in udp_v4_early_demux()
     - ipv6: create multicast route with RTPROT_KERNEL
     - net_sched: avoid shift-out-of-bounds in tcindex_set_parms()
     - net: dsa: b53: fix an off by one in checking "vlan->vid"
     - gpio: mvebu: fix pwm .get_state period calculation
     - Revert "mm/slub: fix a memory leak in sysfs_slab_add()"
     - futex: Ensure the correct return value from futex_lock_pi()
     - futex: Replace pointless printk in fixup_owner()
     - futex: Provide and use pi_state_update_owner()
     - rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
     - futex: Use pi_state_update_owner() in put_pi_state()
     - futex: Simplify fixup_pi_state_owner()
     - futex: Handle faults correctly for PI futexes
     - tracing: Fix race in trace_open and buffer resize call
     - fs: move I_DIRTY_INODE to fs.h
     - writeback: Drop I_DIRTY_TIME_EXPIRE
     - fs: fix lazytime expiration handling in __writeback_single_inode()
     - mmc: core: don't initialize block size from ext_csd if not present
     - scsi: qedi: Correct max length of CHAP secret
     - riscv: Fix kernel time_init()
     - HID: Ignore battery for Elan touchscreen on ASUS UX550
     - clk: tegra30: Add hda clock default rates to clock driver
     - drm/nouveau/mmu: fix vram heap sizing
     - scsi: megaraid_sas: Fix MEGASAS_IOC_FIRMWARE regression
     - can: peak_usb: fix use after free bugs
     - serial: mvebu-uart: fix tx lost characters at power off
     - driver core: Extend device_is_dependent()
     - net_sched: reject silly cell_log in qdisc_get_rtab()
     - tools: Factor HOSTCC, HOSTLD, HOSTAR definitions
   * Enforce CONFIG_DRM_BOCHS=m (LP: #1916290)
     - [Config] Enforce CONFIG_DRM_BOCHS=m
   * Please trust Canonical Livepatch Service kmod signing key (LP: #1898716)
     - [Config] enable CONFIG_MODVERSIONS=y
     - [Packaging] build canonical-certs.pem from branch/arch certs
     - [Config] add Canonical Livepatch Service key to SYSTEM_TRUSTED_KEYS
     - [Config] add ubuntu-drivers key to SYSTEM_TRUSTED_KEYS
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