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[Launchpad Bug Tracker <1882955@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux-kvm - 4.4.0-1077.84

---------------
linux-kvm (4.4.0-1077.84) xenial; urgency=medium

  * xenial/linux-kvm: 4.4.0-1077.84 -proposed tracker (LP: #1885506)

  * LXD 4.2 broken on linux-kvm due to missing VLAN filtering (LP: #1882955)
    - [Config] VLAN_8021Q=m && BRIDGE_VLAN_FILTERING=y

  [ Ubuntu: 4.4.0-186.216 ]

  * xenial/linux: 4.4.0-186.216 -proposed tracker (LP: #1885514)
  * Xenial update: v4.4.228 upstream stable release (LP: #1884564)
    - ipv6: fix IPV6_ADDRFORM operation logic
    - vxlan: Avoid infinite loop when suppressing NS messages with invalid options
    - scsi: return correct blkprep status code in case scsi_init_io() fails.
    - net: phy: marvell: Limit 88m1101 autoneg errata to 88E1145 as well.
    - pwm: fsl-ftm: Use flat regmap cache
    - ARM: 8977/1: ptrace: Fix mask for thumb breakpoint hook
    - sched/fair: Don't NUMA balance for kthreads
    - ath9k_htc: Silence undersized packet warnings
    - x86_64: Fix jiffies ODR violation
    - x86/speculation: Prevent rogue cross-process SSBD shutdown
    - x86/reboot/quirks: Add MacBook6,1 reboot quirk
    - efi/efivars: Add missing kobject_put() in sysfs entry creation error path
    - ALSA: es1688: Add the missed snd_card_free()
    - ALSA: usb-audio: Fix inconsistent card PM state after resume
    - ACPI: sysfs: Fix reference count leak in acpi_sysfs_add_hotplug_profile()
    - ACPI: PM: Avoid using power resources if there are none for D0
    - cgroup, blkcg: Prepare some symbols for module and !CONFIG_CGROUP usages
    - nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
    - spi: bcm2835aux: Fix controller unregister order
    - ALSA: pcm: disallow linking stream to itself
    - x86/speculation: Change misspelled STIPB to STIBP
    - x86/speculation: Add support for STIBP always-on preferred mode
    - x86/speculation: Avoid force-disabling IBPB based on STIBP and enhanced
      IBRS.
    - x86/speculation: PR_SPEC_FORCE_DISABLE enforcement for indirect branches.
    - spi: dw: fix possible race condition
    - spi: dw: Fix controller unregister order
    - spi: No need to assign dummy value in spi_unregister_controller()
    - spi: Fix controller unregister order
    - spi: pxa2xx: Fix controller unregister order
    - spi: bcm2835: Fix controller unregister order
    - ovl: initialize error in ovl_copy_xattr
    - proc: Use new_inode not new_inode_pseudo
    - video: fbdev: w100fb: Fix a potential double free.
    - KVM: nSVM: leave ASID aside in copy_vmcb_control_area
    - KVM: nVMX: Consult only the "basic" exit reason when routing nested exit
    - KVM: arm64: Make vcpu_cp1x() work on Big Endian hosts
    - ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx
    - ath9k: Fix use-after-free Write in ath9k_htc_rx_msg
    - ath9x: Fix stack-out-of-bounds Write in ath9k_hif_usb_rx_cb
    - ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb
    - Smack: slab-out-of-bounds in vsscanf
    - mm/slub: fix a memory leak in sysfs_slab_add()
    - fat: don't allow to mount if the FAT length == 0
    - can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks to USB devices
    - spi: dw: Zero DMA Tx and Rx configurations on stack
    - Bluetooth: Add SCO fallback for invalid LMP parameters error
    - kgdb: Prevent infinite recursive entries to the debugger
    - spi: dw: Enable interrupts in accordance with DMA xfer mode
    - clocksource: dw_apb_timer_of: Fix missing clockevent timers
    - btrfs: do not ignore error from btrfs_next_leaf() when inserting checksums
    - ARM: 8978/1: mm: make act_mm() respect THREAD_SIZE
    - net: vmxnet3: fix possible buffer overflow caused by bad DMA value in
      vmxnet3_get_rss()
    - staging: android: ion: use vmap instead of vm_map_ram
    - e1000: Distribute switch variables for initialization
    - media: dvb: return -EREMOTEIO on i2c transfer failure.
    - MIPS: Make sparse_init() using top-down allocation
    - netfilter: nft_nat: return EOPNOTSUPP if type or flags are not supported
    - lib/mpi: Fix 64-bit MIPS build with Clang
    - net: lpc-enet: fix error return code in lpc_mii_init()
    - net: allwinner: Fix use correct return type for ndo_start_xmit()
    - powerpc/spufs: fix copy_to_user while atomic
    - mips: cm: Fix an invalid error code of INTVN_*_ERR
    - kgdb: Fix spurious true from in_dbg_master()
    - md: don't flush workqueue unconditionally in md_open
    - mwifiex: Fix memory corruption in dump_station
    - mips: Add udelay lpj numbers adjustment
    - x86/mm: Stop printing BRK addresses
    - m68k: mac: Don't call via_flush_cache() on Mac IIfx
    - macvlan: Skip loopback packets in RX handler
    - PCI: Don't disable decoding when mmio_always_on is set
    - MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe()
    - ixgbe: fix signed-integer-overflow warning
    - spi: dw: Return any value retrieved from the dma_transfer callback
    - cpuidle: Fix three reference count leaks
    - ima: Fix ima digest hash table key calculation
    - ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max
    - Btrfs: fix unreplayable log after snapshot delete + parent dir fsync
    - btrfs: send: emit file capabilities after chown
    - btrfs: fix error handling when submitting direct I/O bio
    - ima: Directly assign the ima_default_policy pointer to ima_rules
    - PCI: Program MPS for RCiEP devices
    - e1000e: Relax condition to trigger reset for ME workaround
    - carl9170: remove P2P_GO support
    - media: go7007: fix a miss of snd_card_free
    - b43legacy: Fix case where channel status is corrupted
    - b43: Fix connection problem with WPA3
    - b43_legacy: Fix connection problem with WPA3
    - igb: Report speed and duplex as unknown when device is runtime suspended
    - power: vexpress: add suppress_bind_attrs to true
    - pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOs
    - sparc32: fix register window handling in genregs32_[gs]et()
    - kernel/cpu_pm: Fix uninitted local in cpu_pm
    - ARM: tegra: Correct PL310 Auxiliary Control Register initialization
    - drivers/macintosh: Fix memleak in windfarm_pm112 driver
    - kbuild: force to build vmlinux if CONFIG_MODVERSION=y
    - sunrpc: svcauth_gss_register_pseudoflavor must reject duplicate
      registrations.
    - sunrpc: clean up properly in gss_mech_unregister()
    - w1: omap-hdq: cleanup to add missing newline for some dev_dbg
    - perf probe: Do not show the skipped events
    - perf symbols: Fix debuginfo search for Ubuntu
    - Linux 4.4.228
  * Update lockdown patches (LP: #1884159)
    - acpi: Disable ACPI table override if the kernel is locked down
    - SAUCE: (efi-lockdown) x86/mmiotrace: Lock down the testmmiotrace module
    - Revert "Restrict /dev/mem and /dev/kmem when module loading is restricted"
    - Revert "x86: Lock down IO port access when module security is enabled"
    - SAUCE: (efi-lockdown) Restrict /dev/{mem, kmem, port} when the kernel is
      locked down
    - Annotate module params that specify hardware parameters (eg. ioport)
    - Annotate hardware config module parameters in arch/x86/mm/
    - Annotate hardware config module parameters in drivers/char/ipmi/
    - Annotate hardware config module parameters in drivers/char/mwave/
    - Annotate hardware config module parameters in drivers/char/
    - Annotate hardware config module parameters in drivers/clocksource/
    - Annotate hardware config module parameters in drivers/cpufreq/
    - Annotate hardware config module parameters in drivers/gpio/
    - Annotate hardware config module parameters in drivers/i2c/
    - Annotate hardware config module parameters in drivers/input/
    - Annotate hardware config module parameters in drivers/isdn/
    - Annotate hardware config module parameters in drivers/media/
    - Annotate hardware config module parameters in drivers/misc/
    - Annotate hardware config module parameters in drivers/mmc/host/
    - Annotate hardware config module parameters in drivers/net/appletalk/
    - Annotate hardware config module parameters in drivers/net/arcnet/
    - Annotate hardware config module parameters in drivers/net/can/
    - Annotate hardware config module parameters in drivers/net/ethernet/
    - Annotate hardware config module parameters in drivers/net/hamradio/
    - Annotate hardware config module parameters in drivers/net/irda/
    - Annotate hardware config module parameters in drivers/net/wan/
    - Annotate hardware config module parameters in drivers/net/wireless/
    - Annotate hardware config module parameters in drivers/parport/
    - Annotate hardware config module parameters in drivers/pci/hotplug/
    - Annotate hardware config module parameters in drivers/pcmcia/
    - Annotate hardware config module parameters in drivers/scsi/
    - Annotate hardware config module parameters in drivers/staging/media/
    - Annotate hardware config module parameters in drivers/staging/speakup/
    - Annotate hardware config module parameters in drivers/staging/vme/
    - Annotate hardware config module parameters in drivers/tty/
    - Annotate hardware config module parameters in drivers/video/
    - Annotate hardware config module parameters in drivers/watchdog/
    - Annotate hardware config module parameters in fs/pstore/
    - Annotate hardware config module parameters in sound/drivers/
    - Annotate hardware config module parameters in sound/isa/
    - Annotate hardware config module parameters in sound/oss/
    - Annotate hardware config module parameters in sound/pci/
    - SAUCE: (efi-lockdown) Lock down module params that specify hardware
      parameters (eg. ioport)
    - SAUCE: (efi-lockdown) Prohibit PCMCIA CIS storage when the kernel is locked
      down
    - SAUCE: (efi-lockdown) kexec_file: Disable at runtime if the kernel is locked
      down
    - SAUCE: (efi-lockdown) Lock down TIOCSSERIAL
    - efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN
    - debugfs: prevent access to possibly dead file_operations at file open
    - debugfs: prevent access to removed files' private data
    - debugfs: add support for self-protecting attribute file fops
    - debugfs: unproxify integer attribute files
    - debugfs: unproxify files created through debugfs_create_bool()
    - debugfs: unproxify files created through debugfs_create_blob()
    - debugfs: unproxify files created through debugfs_create_u32_array()
    - debugfs: full_proxy_open(): free proxy on ->open() failure
    - debugfs: open_proxy_open(): avoid double fops release
    - SAUCE: (efi-lockdown) debugfs: Disallow use of debugfs files when the kernel
      is locked down
  * Xenial update: v4.4.227 upstream stable release (LP: #1883918)
    - scsi: scsi_devinfo: fixup string compare
    - usb: gadget: f_uac2: fix error handling in afunc_bind (again)
    - platform/x86: acer-wmi: setup accelerometer when ACPI device was found
    - esp6: fix memleak on error path in esp6_input
    - IB/mlx4: Fix an error handling path in 'mlx4_ib_rereg_user_mr()'
    - ALSA: hda - No loopback on ALC299 codec
    - spi: dw: use "smp_mb()" to avoid sending spi data error
    - s390/ftrace: save traced function caller
    - ARC: Fix ICCM & DCCM runtime size checks
    - x86/mmiotrace: Use cpumask_available() for cpumask_var_t variables
    - net: bmac: Fix read of MAC address from ROM
    - net/ethernet/freescale: rework quiesce/activate for ucc_geth
    - net: ethernet: stmmac: Enable interface clocks on probe for IPQ806x
    - pppoe: only process PADT targeted at local interfaces
    - mmc: fix compilation of user API
    - slcan: Fix double-free on slcan_open() error path
    - slip: not call free_netdev before rtnl_unlock in slip_open
    - scsi: ufs: Release clock if DMA map fails
    - devinet: fix memleak in inetdev_init()
    - NFC: st21nfca: add missed kfree_skb() in an error path
    - vsock: fix timeout in vsock_accept()
    - l2tp: add sk_family checks to l2tp_validate_socket
    - l2tp: do not use inet_hash()/inet_unhash()
    - USB: serial: qcserial: add DW5816e QDL support
    - USB: serial: usb_wwan: do not resubmit rx urb on fatal errors
    - USB: serial: option: add Telit LE910C1-EUX compositions
    - vt: keyboard: avoid signed integer overflow in k_ascii
    - staging: rtl8712: Fix IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK
    - x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
    - x86/speculation: Add SRBDS vulnerability and mitigation documentation
    - x86/speculation: Add Ivy Bridge to affected list
    - iio: vcnl4000: Fix i2c swapped word reading.
    - uprobes: ensure that uprobe->offset and ->ref_ctr_offset are properly
      aligned
    - Linux 4.4.227
  * Xenial update: v4.4.226 upstream stable release (LP: #1883917)
    - ax25: fix setsockopt(SO_BINDTODEVICE)
    - net: revert "net: get rid of an signed integer overflow in
      ip_idents_reserve()"
    - sctp: Start shutdown on association restart if in SHUTDOWN-SENT state and
      socket is closed
    - net/mlx5: Add command entry handling completion
    - net: sun: fix missing release regions in cas_init_one().
    - net/mlx4_core: fix a memory leak bug.
    - uapi: fix linux/if_pppol2tp.h userspace compilation errors
    - IB/cma: Fix reference count leak when no ipv4 addresses are set
    - cachefiles: Fix race between read_waiter and read_copier involving op->to_do
    - usb: gadget: legacy: fix redundant initialization warnings
    - cifs: Fix null pointer check in cifs_read
    - Input: usbtouchscreen - add support for BonXeon TP
    - Input: evdev - call input_flush_device() on release(), not flush()
    - Input: xpad - add custom init packet for Xbox One S controllers
    - Input: i8042 - add ThinkPad S230u to i8042 reset list
    - IB/qib: Call kobject_put() when kobject_init_and_add() fails
    - ALSA: hwdep: fix a left shifting 1 by 31 UB bug
    - ALSA: usb-audio: mixer: volume quirk for ESS Technology Asus USB DAC
    - exec: Always set cap_ambient in cap_bprm_set_creds
    - fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
    - include/asm-generic/topology.h: guard cpumask_of_node() macro argument
    - iommu: Fix reference count leak in iommu_group_alloc.
    - parisc: Fix kernel panic in mem_init()
    - x86/dma: Fix max PFN arithmetic overflow on 32 bit systems
    - xfrm: allow to accept packets with ipv6 NEXTHDR_HOP in xfrm_input
    - xfrm: fix a warning in xfrm_policy_insert_list
    - xfrm: fix a NULL-ptr deref in xfrm_local_error
    - vti4: eliminated some duplicate code.
    - ip_vti: receive ipip packet by calling ip_tunnel_rcv
    - netfilter: nft_reject_bridge: enable reject with bridge vlan
    - netfilter: ipset: Fix subcounter update skip
    - netfilter: nf_conntrack_pptp: prevent buffer overflows in debug code
    - qlcnic: fix missing release in qlcnic_83xx_interrupt_test.
    - bonding: Fix reference count leak in bond_sysfs_slave_add.
    - netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build
    - mm: remove VM_BUG_ON(PageSlab()) from page_mapcount()
    - genirq/generic_pending: Do not lose pending affinity update
    - usb: renesas_usbhs: gadget: fix spin_lock_init() for &uep->lock
    - mac80211: fix memory leak
    - net: rtnl_configure_link: fix dev flags changes arg to __dev_notify_flags
    - mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()
    - asm-prototypes: Clear any CPP defines before declaring the functions
    - sc16is7xx: move label 'err_spi' to correct section
    - drm/msm: Fix possible null dereference on failure of get_pages()
    - printk: help pr_debug and pr_devel to optimize out arguments
    - scsi: zfcp: fix request object use-after-free in send path causing wrong
      traces
    - Linux 4.4.226
  * Xenial update: v4.4.225 upstream stable release (LP: #1883916)
    - igb: use igb_adapter->io_addr instead of e1000_hw->hw_addr
    - padata: Remove unused but set variables
    - padata: get_next is never NULL
    - padata: ensure the reorder timer callback runs on the correct CPU
    - padata: ensure padata_do_serial() runs on the correct CPU
    - evm: Check also if *tfm is an error pointer in init_desc()
    - fix multiplication overflow in copy_fdtable()
    - HID: multitouch: add eGalaxTouch P80H84 support
    - ceph: fix double unlock in handle_cap_export()
    - USB: core: Fix misleading driver bug report
    - platform/x86: asus-nb-wmi: Do not load on Asus T100TA and T200TA
    - ARM: futex: Address build warning
    - media: Fix media_open() to clear filp->private_data in error leg
    - drivers/media/media-devnode: clear private_data before put_device()
    - media-devnode: add missing mutex lock in error handler
    - media-devnode: fix namespace mess
    - media-device: dynamically allocate struct media_devnode
    - media: fix use-after-free in cdev_put() when app exits after driver unbind
    - media: fix media devnode ioctl/syscall and unregister race
    - i2c: dev: switch from register_chrdev to cdev API
    - i2c: dev: don't start function name with 'return'
    - i2c: dev: use after free in detach
    - i2c-dev: don't get i2c adapter via i2c_dev
    - i2c: dev: Fix the race between the release of i2c_dev and cdev
    - padata: set cpu_index of unused CPUs to -1
    - sched/fair, cpumask: Export for_each_cpu_wrap()
    - padata: Replace delayed timer with immediate workqueue in padata_reorder
    - padata: initialize pd->cpu with effective cpumask
    - padata: purge get_cpu and reorder_via_wq from padata_do_serial
    - ALSA: pcm: fix incorrect hw_base increase
    - platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer
    - libnvdimm/btt: Remove unnecessary code in btt_freelist_init
    - l2tp: lock socket before checking flags in connect()
    - l2tp: fix racy socket lookup in l2tp_ip and l2tp_ip6 bind()
    - l2tp: hold session while sending creation notifications
    - l2tp: take a reference on sessions used in genetlink handlers
    - l2tp: don't use l2tp_tunnel_find() in l2tp_ip and l2tp_ip6
    - net: l2tp: export debug flags to UAPI
    - net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_*
    - net: l2tp: ppp: change PPPOL2TP_MSG_* => L2TP_MSG_*
    - New kernel function to get IP overhead on a socket.
    - L2TP:Adjust intf MTU, add underlay L3, L2 hdrs.
    - l2tp: remove useless duplicate session detection in l2tp_netlink
    - l2tp: remove l2tp_session_find()
    - l2tp: define parameters of l2tp_session_get*() as "const"
    - l2tp: define parameters of l2tp_tunnel_find*() as "const"
    - l2tp: initialise session's refcount before making it reachable
    - l2tp: hold tunnel while looking up sessions in l2tp_netlink
    - l2tp: hold tunnel while processing genl delete command
    - l2tp: hold tunnel while handling genl tunnel updates
    - l2tp: hold tunnel while handling genl TUNNEL_GET commands
    - l2tp: hold tunnel used while creating sessions with netlink
    - l2tp: prevent creation of sessions on terminated tunnels
    - l2tp: fix l2tp_eth module loading
    - l2tp: don't register sessions in l2tp_session_create()
    - l2tp: initialise l2tp_eth sessions before registering them
    - l2tp: protect sock pointer of struct pppol2tp_session with RCU
    - l2tp: initialise PPP sessions before registering them
    - Revert "gfs2: Don't demote a glock until its revokes are written"
    - staging: iio: ad2s1210: Fix SPI reading
    - mei: release me_cl object reference
    - iio: sca3000: Remove an erroneous 'get_device()'
    - l2tp: device MTU setup, tunnel socket needs a lock
    - cpumask: Make for_each_cpu_wrap() available on UP as well
    - Linux 4.4.225
  * smpboot: don't call topology_sane() when Sub-NUMA-Clustering is enabled
    (LP: #1882478)
    - x86, sched: Allow topologies where NUMA nodes share an LLC
  * CVE-2020-11935
    - SAUCE: aufs: do not call i_readcount_inc()
    - SAUCE: aufs: bugfix, IMA i_readcount
  * CVE-2019-12380
    - efi/x86/Add missing error handling to old_memmap 1:1 mapping code

 -- Kelsey Skunberg <kelsey.skunberg@xxxxxxxxxxxxx>  Wed, 01 Jul 2020
16:48:22 -0600

** Changed in: linux-kvm (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-12380

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https://bugs.launchpad.net/bugs/1882955

Title:
  LXD 4.2 broken on linux-kvm due to missing VLAN filtering

Status in linux-kvm package in Ubuntu:
  Invalid
Status in linux-kvm source package in Xenial:
  Fix Released
Status in linux-kvm source package in Bionic:
  Fix Released
Status in linux-kvm source package in Eoan:
  Fix Committed
Status in linux-kvm source package in Focal:
  Fix Released

Bug description:
  [Description]

  Some VLAN options (BRIDGE_VLAN_FILTERING, and its dependencies
  VLAN_8021Q*) were in a different state in Focal/kvm compared to
  Focal/generic: LXD now depends on BRIDGE_VLAN_FILTERING and due to
  this discrepancy it fails to work on the Focal/kvm kernel: fix it by
  aligning the config with Focal/generic

  [Fix]

  Apply the attached config patch

  [Regression potential]

  Low, just some config changes already present in generic.

  ---
  This is another case of linux-kvm having unexplained differences compared to linux-generic in areas that aren't related to hardware drivers (see other bug we filed for missing nft).

  This time, CPC is reporting that LXD no longer works on linux-kvm as
  we now set vlan filtering on our bridges to prevent containers from
  escaping firewalling through custom vlan tags.

  This relies on CONFIG_BRIDGE_VLAN_FILTERING which is a built-in on the
  generic kernel but is apparently missing on linux-kvm (I don't have
  any system running that kernel to confirm its config, but the behavior
  certainly matches that).

  We need this fixed in focal and groovy.

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