kernel-packages team mailing list archive

[Launchpad Bug Tracker <1584827@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.4.0-28.47

---------------
linux (4.4.0-28.47) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1595874

  * Linux netfilter local privilege escalation issues (LP: #1595350)
    - netfilter: x_tables: don't move to non-existent next rule
    - netfilter: x_tables: validate targets of jumps
    - netfilter: x_tables: add and use xt_check_entry_offsets
    - netfilter: x_tables: kill check_entry helper
    - netfilter: x_tables: assert minimum target size
    - netfilter: x_tables: add compat version of xt_check_entry_offsets
    - netfilter: x_tables: check standard target size too
    - netfilter: x_tables: check for bogus target offset
    - netfilter: x_tables: validate all offsets and sizes in a rule
    - netfilter: x_tables: don't reject valid target size on some architectures
    - netfilter: arp_tables: simplify translate_compat_table args
    - netfilter: ip_tables: simplify translate_compat_table args
    - netfilter: ip6_tables: simplify translate_compat_table args
    - netfilter: x_tables: xt_compat_match_from_user doesn't need a retval
    - netfilter: x_tables: do compat validation via translate_table
    - netfilter: x_tables: introduce and use xt_copy_counters_from_user

  * Linux netfilter IPT_SO_SET_REPLACE memory corruption (LP: #1555338)
    - netfilter: x_tables: validate e->target_offset early
    - netfilter: x_tables: make sure e->next_offset covers remaining blob size
    - netfilter: x_tables: fix unconditional helper

linux (4.4.0-27.46) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1594906

  * Support Edge Gateway's Bluetooth LED (LP: #1512999)
    - Revert "UBUNTU: SAUCE: Bluetooth: Support for LED on Marvell modules"

linux (4.4.0-26.45) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1594442

  * linux: Implement secure boot state variables (LP: #1593075)
    - SAUCE: UEFI: Add secure boot and MOK SB State disabled sysctl

  * failures building userspace packages that include ethtool.h (LP: #1592930)
    - ethtool.h: define INT_MAX for userland

linux (4.4.0-25.44) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1591289

  * Xenial update to v4.4.13 stable release (LP: #1590455)
    - MIPS64: R6: R2 emulation bugfix
    - MIPS: math-emu: Fix jalr emulation when rd == $0
    - MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC
    - MIPS: Don't unwind to user mode with EVA
    - MIPS: Avoid using unwind_stack() with usermode
    - MIPS: Fix siginfo.h to use strict posix types
    - MIPS: Fix uapi include in exported asm/siginfo.h
    - MIPS: Fix watchpoint restoration
    - MIPS: Flush highmem pages in __flush_dcache_page
    - MIPS: Handle highmem pages in __update_cache
    - MIPS: Sync icache & dcache in set_pte_at
    - MIPS: ath79: make bootconsole wait for both THRE and TEMT
    - MIPS: Reserve nosave data for hibernation
    - MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU
    - MIPS: Use copy_s.fmt rather than copy_u.fmt
    - MIPS: Fix MSA ld_*/st_* asm macros to use PTR_ADDU
    - MIPS: Prevent "restoration" of MSA context in non-MSA kernels
    - MIPS: Disable preemption during prctl(PR_SET_FP_MODE, ...)
    - MIPS: ptrace: Fix FP context restoration FCSR regression
    - MIPS: ptrace: Prevent writes to read-only FCSR bits
    - MIPS: Fix sigreturn via VDSO on microMIPS kernel
    - MIPS: Build microMIPS VDSO for microMIPS kernels
    - MIPS: lib: Mark intrinsics notrace
    - MIPS: VDSO: Build with `-fno-strict-aliasing'
    - affs: fix remount failure when there are no options changed
    - ASoC: ak4642: Enable cache usage to fix crashes on resume
    - Input: uinput - handle compat ioctl for UI_SET_PHYS
    - ARM: mvebu: fix GPIO config on the Linksys boards
    - ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description
    - ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
    - ARM: dts: imx35: restore existing used clock enumeration
    - ath9k: Add a module parameter to invert LED polarity.
    - ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards.
    - ath10k: fix debugfs pktlog_filter write
    - ath10k: fix firmware assert in monitor mode
    - ath10k: fix rx_channel during hw reconfigure
    - ath10k: fix kernel panic, move arvifs list head init before htt init
    - ath5k: Change led pin configuration for compaq c700 laptop
    - hwrng: exynos - Fix unbalanced PM runtime put on timeout error path
    - rtlwifi: rtl8723be: Add antenna select module parameter
    - rtlwifi: btcoexist: Implement antenna selection
    - rtlwifi: Fix logic error in enter/exit power-save mode
    - rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in
      rtl_pci_reset_trx_ring
    - aacraid: Relinquish CPU during timeout wait
    - aacraid: Fix for aac_command_thread hang
    - aacraid: Fix for KDUMP driver hang
    - hwmon: (ads7828) Enable internal reference
    - mfd: intel-lpss: Save register context on suspend
    - mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table
      correctly
    - PM / Runtime: Fix error path in pm_runtime_force_resume()
    - cpuidle: Indicate when a device has been unregistered
    - cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
    - clk: bcm2835: Fix PLL poweron
    - clk: at91: fix check of clk_register() returned value
    - clk: bcm2835: pll_off should only update CM_PLL_ANARST
    - clk: bcm2835: divider value has to be 1 or more
    - pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range
    - PCI: Disable all BAR sizing for devices with non-compliant BARs
    - media: v4l2-compat-ioctl32: fix missing reserved field copy in
      put_v4l2_create32
    - mm: use phys_addr_t for reserve_bootmem_region() arguments
    - wait/ptrace: assume __WALL if the child is traced
    - QE-UART: add "fsl,t1040-ucc-uart" to of_device_id
    - powerpc/book3s64: Fix branching to OOL handlers in relocatable kernel
    - powerpc/eeh: Don't report error in eeh_pe_reset_and_recover()
    - powerpc/eeh: Restore initial state in eeh_pe_reset_and_recover()
    - xen/events: Don't move disabled irqs
    - xen: use same main loop for counting and remapping pages
    - sunrpc: fix stripping of padded MIC tokens
    - drm/gma500: Fix possible out of bounds read
    - drm/vmwgfx: Enable SVGA_3D_CMD_DX_SET_PREDICATION
    - drm/vmwgfx: use vmw_cmd_dx_cid_check for query commands.
    - drm/vmwgfx: Fix order of operation
    - drm/amdgpu: use drm_mode_vrefresh() rather than mode->vrefresh
    - drm/amdgpu: Fix hdmi deep color support.
    - drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config()
    - drm/fb_helper: Fix references to dev->mode_config.num_connector
    - drm/atomic: Verify connector->funcs != NULL when clearing states
    - drm/i915: Don't leave old junk in ilk active watermarks on readout
    - drm/imx: Match imx-ipuv3-crtc components using device node in platform data
    - ext4: fix hang when processing corrupted orphaned inode list
    - ext4: clean up error handling when orphan list is corrupted
    - ext4: fix oops on corrupted filesystem
    - ext4: address UBSAN warning in mb_find_order_for_block()
    - ext4: silence UBSAN in ext4_mb_init()
    - PM / sleep: Handle failures in device_suspend_late() consistently
    - dma-debug: avoid spinlock recursion when disabling dma-debug
    - scripts/package/Makefile: rpmbuild add support of RPMOPTS
    - gcov: disable tree-loop-im to reduce stack usage
    - xfs: disallow rw remount on fs with unknown ro-compat features
    - xfs: Don't wrap growfs AGFL indexes
    - xfs: xfs_iflush_cluster fails to abort on error
    - xfs: fix inode validity check in xfs_iflush_cluster
    - xfs: skip stale inodes in xfs_iflush_cluster
    - xfs: print name of verifier if it fails
    - xfs: handle dquot buffer readahead in log recovery correctly
    - Linux 4.4.13

  * 168c:001c [HP Compaq Presario C700 Notebook PC] Wireless led button doesn't
    switch colors (LP: #972604)
    - ath5k: Change led pin configuration for compaq c700 laptop

  * Extended statistics from balloon for proper memory management (LP: #1587091)
    - mm/page_alloc.c: calculate 'available' memory in a separate function
    - virtio_balloon: export 'available' memory to balloon statistics

  * CAPI: CGZIP AFU contexts do not receive interrupts after heavy afu
    open/close (LP: #1588468)
    - misc: cxl: use kobj_to_dev()
    - cxl: Move common code away from bare-metal-specific files
    - cxl: Move bare-metal specific code to specialized files
    - cxl: Define process problem state area at attach time only
    - cxl: Introduce implementation-specific API
    - cxl: Rename some bare-metal specific functions
    - cxl: Isolate a few bare-metal-specific calls
    - cxl: Update cxl_irq() prototype
    - cxl: IRQ allocation for guests
    - powerpc: New possible return value from hcall
    - cxl: New hcalls to support cxl adapters
    - cxl: Separate bare-metal fields in adapter and AFU data structures
    - cxlflash: Simplify PCI registration
    - cxlflash: Unmap problem state area before detaching master context
    - cxlflash: Split out context initialization
    - cxlflash: Simplify attach path error cleanup
    - cxlflash: Reorder user context initialization
    - cxl: Add guest-specific code
    - cxl: sysfs support for guests
    - cxl: Support to flash a new image on the adapter from a guest
    - cxl: Parse device tree and create cxl device(s) at boot
    - cxl: Support the cxl kernel API from a guest
    - cxl: Adapter failure handling
    - cxl: Add tracepoints around the cxl hcall
    - cxlflash: Use new cxl_pci_read_adapter_vpd() API
    - cxl: Remove cxl_get_phys_dev() kernel API
    - cxl: Ignore probes for virtual afu pci devices
    - cxl: Poll for outstanding IRQs when detaching a context

  * NVMe max_segments queue parameter gets set to 1 (LP: #1588449)
    - nvme: set queue limits for the admin queue
    - nvme: fix max_segments integer truncation
    - block: fix blk_rq_get_max_sectors for driver private requests

  * workaround cavium thunderx silicon erratum 23144 (LP: #1589704)
    - irqchip/gicv3-its: numa: Enable workaround for Cavium thunderx erratum 23144

  * Xenial update to v4.4.12 stable release (LP: #1588945)
    - Btrfs: don't use src fd for printk
    - perf/x86/intel/pt: Generate PMI in the STOP region as well
    - perf/core: Fix perf_event_open() vs. execve() race
    - perf test: Fix build of BPF and LLVM on older glibc libraries
    - ext4: iterate over buffer heads correctly in move_extent_per_page()
    - arm64: Fix typo in the pmdp_huge_get_and_clear() definition
    - arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
    - arm64: Implement ptep_set_access_flags() for hardware AF/DBM
    - arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
    - arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
    - arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables
    - kvm: arm64: Fix EC field in inject_abt64
    - remove directory incorrectly tries to set delete on close on non-empty
      directories
    - fs/cifs: correctly to anonymous authentication via NTLMSSP
    - fs/cifs: correctly to anonymous authentication for the LANMAN authentication
    - fs/cifs: correctly to anonymous authentication for the NTLM(v1)
      authentication
    - fs/cifs: correctly to anonymous authentication for the NTLM(v2)
      authentication
    - asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
    - ring-buffer: Use long for nr_pages to avoid overflow failures
    - ring-buffer: Prevent overflow of size in ring_buffer_resize()
    - crypto: caam - fix caam_jr_alloc() ret code
    - crypto: talitos - fix ahash algorithms registration
    - crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore}
    - clk: qcom: msm8916: Fix crypto clock flags
    - sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded
      systems
    - mfd: omap-usb-tll: Fix scheduling while atomic BUG
    - Input: pwm-beeper - fix - scheduling while atomic
    - irqchip/gic: Ensure ordering between read of INTACK and shared data
    - irqchip/gic-v3: Configure all interrupts as non-secure Group-1
    - can: fix handling of unmodifiable configuration options
    - mmc: mmc: Fix partition switch timeout for some eMMCs
    - mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
    - ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal
      strings
    - dell-rbtn: Ignore ACPI notifications if device is suspended
    - mmc: longer timeout for long read time quirk
    - mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
    - Bluetooth: vhci: fix open_timeout vs. hdev race
    - Bluetooth: vhci: purge unhandled skbs
    - Bluetooth: vhci: Fix race at creating hci device
    - mei: fix NULL dereferencing during FW initiated disconnection
    - mei: amthif: discard not read messages
    - mei: bus: call mei_cl_read_start under device lock
    - USB: serial: mxuport: fix use-after-free in probe error path
    - USB: serial: keyspan: fix use-after-free in probe error path
    - USB: serial: quatech2: fix use-after-free in probe error path
    - USB: serial: io_edgeport: fix memory leaks in attach error path
    - USB: serial: io_edgeport: fix memory leaks in probe error path
    - USB: serial: option: add support for Cinterion PH8 and AHxx
    - USB: serial: option: add more ZTE device ids
    - USB: serial: option: add even more ZTE device ids
    - usb: gadget: f_fs: Fix EFAULT generation for async read operations
    - usb: f_mass_storage: test whether thread is running before starting another
    - usb: misc: usbtest: fix pattern tests for scatterlists.
    - usb: gadget: udc: core: Fix argument of dev_err() in
      usb_gadget_map_request()
    - staging: comedi: das1800: fix possible NULL dereference
    - KVM: x86: fix ordering of cr0 initialization code in vmx_cpu_reset
    - MIPS: KVM: Fix timer IRQ race when freezing timer
    - MIPS: KVM: Fix timer IRQ race when writing CP0_Compare
    - KVM: x86: mask CPUID(0xD,0x1).EAX against host value
    - xen/x86: actually allocate legacy interrupts on PV guests
    - tty: vt, return error when con_startup fails
    - TTY: n_gsm, fix false positive WARN_ON
    - tty/serial: atmel: fix hardware handshake selection
    - Fix OpenSSH pty regression on close
    - serial: 8250_pci: fix divide error bug if baud rate is 0
    - serial: 8250_mid: use proper bar for DNV platform
    - serial: 8250_mid: recognize interrupt source in handler
    - serial: samsung: Reorder the sequence of clock control when call
      s3c24xx_serial_set_termios()
    - locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait()
    - clk: bcm2835: add locking to pll*_on/off methods
    - mcb: Fixed bar number assignment for the gdd
    - ALSA: hda/realtek - New codecs support for ALC234/ALC274/ALC294
    - ALSA: hda - Fix headphone noise on Dell XPS 13 9360
    - ALSA: hda/realtek - Add support for ALC295/ALC3254
    - ALSA: hda - Fix headset mic detection problem for one Dell machine
    - IB/srp: Fix a debug kernel crash
    - thunderbolt: Fix double free of drom buffer
    - SIGNAL: Move generic copy_siginfo() to signal.h
    - UBI: Fix static volume checks when Fastmap is used
    - hpfs: fix remount failure when there are no options changed
    - hpfs: implement the show_options method
    - scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
    - Revert "scsi: fix soft lockup in scsi_remove_target() on module removal"
    - kbuild: move -Wunused-const-variable to W=1 warning level
    - Linux 4.4.12

  * [Hyper-V] fixes for kdump when running on a VM (LP: #1588965)
    - clocksource: Allow unregistering the watchdog

  * net_admin apparmor denial when using Go (LP: #1465724)
    - SAUCE: kernel: Add noaudit variant of ns_capable()
    - SAUCE: net: Use ns_capable_noaudit() when determining net sysctl permissions

  * [Hyper-V] Put tools/hv/lsvmbus in /usr/sbin (LP: #1585311)
    - [Debian] Install lsvmbus in cloud tools
    - SAUCE: tools/hv/lsvmbus -- convert to python3
    - SAUCE: tools/hv/lsvmbus -- add manual page

  * btrfs: file write crashes with false ENOSPC during snapshot creation since
    kernel 4.4 - fix available (LP: #1584052)
    - btrfs: Continue write in case of can_not_nocow

  * boot stalls on USB detection errors (LP: #1437492)
    - usb: core: hub: hub_port_init lock controller instead of bus

  * [Bug]KNL:Spread MWAIT cache lines over all nodes (LP: #1585850)
    - kernek/fork.c: allocate idle task for a CPU always on its local node

  * [Hyper-V] PCI Passthrough kernel hang and explicit barriers (LP: #1581243)
    - PCI: hv: Report resources release after stopping the bus
    - PCI: hv: Add explicit barriers to config space access

  * Kernel 4.2.X and 4.4.X - Fix USB3.0 link power management (LPM)
    claim/release logic in USBFS (LP: #1577024)
    - USB: leave LPM alone if possible when binding/unbinding interface drivers

  * STC840.20:tuleta:tul516p01 panic after injecting Leaf EEH (LP: #1581034)
    - NVMe: Fix namespace removal deadlock
    - NVMe: Requeue requests on suspended queues
    - NVMe: Move error handling to failed reset handler
    - blk-mq: End unstarted requests on dying queue

  * conflicting modules in udebs - arc4.ko (LP: #1582991)
    - [Config] Remove arc4 from nic-modules

  * CVE-2016-4482 (LP: #1578493)
    - USB: usbfs: fix potential infoleak in devio

  * mlx5_core kexec fail  (LP: #1585978)
    - net/mlx5: Add pci shutdown callback

  * backport fix for /proc/net issues with containers (LP: #1584953)
    - netfilter: Set /proc/net entries owner to root in namespace

  * CVE-2016-4951 (LP: #1585365)
    - tipc: check nl sock before parsing nested attributes

  * CVE-2016-4578 (LP: #1581866)
    - ALSA: timer: Fix leak in events via snd_timer_user_ccallback
    - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt

  * CVE-2016-4569 (LP: #1580379)
    - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS

  * s390/pci: fix use after free in dma_init (LP: #1584828)
    - s390/pci: fix use after free in dma_init

  * s390/mm: fix asce_bits handling with dynamic pagetable levels (LP: #1584827)
    - s390/mm: fix asce_bits handling with dynamic pagetable levels

  * CAPI: CGZIP Wrong CAPI MMIO timeout (256usec desired but 1usec default
    setting in cxl.ko driver) (LP: #1584066)
    - powerpc: Define PVR value for POWER8NVL processor
    - cxl: Configure the PSL for two CAPI ports on POWER8NVL
    - cxl: Increase timeout for detection of AFU mmio hang

  * ThunderX: soft lockup in cursor_timer_handler() (LP: #1574814)
    - SAUCE: tty: vt: Fix soft lockup in fbcon cursor blink timer.

  * debian.master/.../getabis bogus warnings "inconsistant compiler versions"
    and "not a git repository" (LP: #1584890)
    - [debian] getabis: Only git add $abidir if running in local repo
    - [debian] getabis: Fix inconsistent compiler versions check

  * Backport cxlflash patch related to EEH recovery into Xenial SRU stream
    (LP: #1584935)
    - cxlflash: Fix to resolve dead-lock during EEH recovery

  * Xenial update to 4.4.11 stable release (LP: #1584912)
    - decnet: Do not build routes to devices without decnet private data.
    - route: do not cache fib route info on local routes with oif
    - packet: fix heap info leak in PACKET_DIAG_MCLIST sock_diag interface
    - net: sched: do not requeue a NULL skb
    - bpf/verifier: reject invalid LD_ABS | BPF_DW instruction
    - cdc_mbim: apply "NDP to end" quirk to all Huawei devices
    - net: use skb_postpush_rcsum instead of own implementations
    - vlan: pull on __vlan_insert_tag error path and fix csum correction
    - openvswitch: use flow protocol when recalculating ipv6 checksums
    - ipv4/fib: don't warn when primary address is missing if in_dev is dead
    - net/mlx4_en: fix spurious timestamping callbacks
    - bpf: fix check_map_func_compatibility logic
    - samples/bpf: fix trace_output example
    - net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case
    - gre: do not pull header in ICMP error processing
    - net_sched: introduce qdisc_replace() helper
    - net_sched: update hierarchical backlog too
    - sch_htb: update backlog as well
    - sch_dsmark: update backlog as well
    - netem: Segment GSO packets on enqueue
    - net: fec: only clear a queue's work bit if the queue was emptied
    - VSOCK: do not disconnect socket when peer has shutdown SEND only
    - net: bridge: fix old ioctl unlocked net device walk
    - bridge: fix igmp / mld query parsing
    - uapi glibc compat: fix compile errors when glibc net/if.h included before
      linux/if.h MIME-Version: 1.0
    - net: fix a kernel infoleak in x25 module
    - net: thunderx: avoid exposing kernel stack
    - tcp: refresh skb timestamp at retransmit time
    - net/route: enforce hoplimit max value
    - ocfs2: revert using ocfs2_acl_chmod to avoid inode cluster lock hang
    - ocfs2: fix posix_acl_create deadlock
    - zsmalloc: fix zs_can_compact() integer overflow
    - crypto: qat - fix invalid pf2vf_resp_wq logic
    - crypto: hash - Fix page length clamping in hash walk
    - crypto: testmgr - Use kmalloc memory for RSA input
    - ALSA: usb-audio: Quirk for yet another Phoenix Audio devices (v2)
    - ALSA: usb-audio: Yet another Phoneix Audio device quirk
    - ALSA: hda - Fix subwoofer pin on ASUS N751 and N551
    - ALSA: hda - Fix white noise on Asus UX501VW headset
    - ALSA: hda - Fix broken reconfig
    - spi: pxa2xx: Do not detect number of enabled chip selects on Intel SPT
    - spi: spi-ti-qspi: Fix FLEN and WLEN settings if bits_per_word is overridden
    - spi: spi-ti-qspi: Handle truncated frames properly
    - pinctrl: at91-pio4: fix pull-up/down logic
    - regmap: spmi: Fix regmap_spmi_ext_read in multi-byte case
    - perf/core: Disable the event on a truncated AUX record
    - vfs: add vfs_select_inode() helper
    - vfs: rename: check backing inode being equal
    - ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC
    - workqueue: fix rebind bound workers warning
    - regulator: s2mps11: Fix invalid selector mask and voltages for buck9
    - regulator: axp20x: Fix axp22x ldo_io voltage ranges
    - atomic_open(): fix the handling of create_error
    - qla1280: Don't allocate 512kb of host tags
    - tools lib traceevent: Do not reassign parg after collapse_tree()
    - get_rock_ridge_filename(): handle malformed NM entries
    - Input: max8997-haptic - fix NULL pointer dereference
    - Revert "[media] videobuf2-v4l2: Verify planes array in buffer dequeueing"
    - drm/radeon: fix PLL sharing on DCE6.1 (v2)
    - drm/i915: Bail out of pipe config compute loop on LPT
    - drm/i915/bdw: Add missing delay during L3 SQC credit programming
    - drm/radeon: fix DP link training issue with second 4K monitor
    - nf_conntrack: avoid kernel pointer value leak in slab name
    - Linux 4.4.11

  * Support Edge Gateway's Bluetooth LED (LP: #1512999)
    - SAUCE: Bluetooth: Support for LED on Marvell modules

  * Support Edge Gateway's WIFI LED (LP: #1512997)
    - SAUCE: mwifiex: Switch WiFi LED state according to the device status

  * Marvell wireless driver update for FCC regulation (LP: #1528910)
    - mwifiex: parse adhoc start/join result
    - mwifiex: handle start AP error paths correctly
    - mwifiex: set regulatory info from EEPROM
    - mwifiex: don't follow AP if country code received from EEPROM
    - mwifiex: correction in region code to country mapping
    - mwifiex: update region_code_index array
    - mwifiex: use world for unidentified region code
    - SAUCE: mwifiex: add iw vendor command support

  * Kernel can be oopsed using remap_file_pages (LP: #1558120)
    - Revert "UBUNTU: SAUCE: mm/mmap: fix oopsing on remap_file_pages"
    - SAUCE: AUFS: mm/mmap: fix oopsing on remap_file_pages aufs mmap: bugfix,
      mainly for linux-4.5-rc5, remap_file_pages(2) emulation

  * cgroup namespace update (LP: #1584163)
    - Revert "UBUNTU: SAUCE: cgroup mount: ignore nsroot="
    - Revert "UBUNTU: SAUCE: (noup) cgroup namespaces: add a 'nsroot=' mountinfo
      field"
    - cgroup, kernfs: make mountinfo show properly scoped path for cgroup
      namespaces
    - kernfs: kernfs_sop_show_path: don't return 0 after seq_dentry call
    - cgroup: fix compile warning

  * Missing libunwind support in perf (LP: #1248289)
    - [Config] add binutils-dev to the Build-Depends: to fix perf unwinding

  * e1000 Tx Unit Hang  (LP: #1582328)
    - e1000: Double Tx descriptors needed check for 82544
    - e1000: Do not overestimate descriptor counts in Tx pre-check

  * Unsharing user and ipc namespaces simultaneously makes mqueue unmountable
    (LP: #1582378)
    - SAUCE: (namespace) mqueue: Super blocks must be owned by the user ns which
      owns the ipc ns

  * Pull in the amdgpu/radeon code from Linux 4.5.3 (LP: #1580526)
    - drm/radeon: rework fbdev handling on chips with no connectors
    - drm/radeon/mst: fix regression in lane/link handling.
    - drm/amd/powerplay: add uvd/vce dpm enabling flag to fix the performance
      issue for CZ
    - drm/amd/powerplay: fix segment fault issue in multi-display case.
    - drm/ttm: fix kref count mess in ttm_bo_move_to_lru_tail

  * aufs CONFIG_AUFS_EXPORT build option should be enabled (LP: #1121699)
    - [Config] enable CONFIG_AUFS_EXPORT

  * promote *_diag modules from linux-image-extra to linux-image (LP: #1580355)
    - [Config] Update inclusion list for CRIU

  * [Xenial] net: updates to ethtool and virtio_net for speed/duplex support
    (LP: #1581132)
    - ethtool: add speed/duplex validation functions
    - ethtool: make validate_speed accept all speeds between 0 and INT_MAX
    - virtio_net: add ethtool support for set and get of settings
    - virtio_net: validate ethtool port setting and explain the user validation

  * perf tool: Display event codes for Generic HW (PMU) events (LP: #1578211)
    - powerpc/perf: Remove PME_ prefix for power7 events
    - powerpc/perf: Export Power8 generic and cache events to sysfs

  * Mellanox ConnectX4 MTU limits: max and min (LP: #1528466)
    - net/mlx5: Introduce a new header file for physical port functions
    - net/mlx5e: Device's mtu field is u16 and not int
    - net/mlx5e: Fix minimum MTU

  * Miscellaneous Ubuntu changes
    - [Config] CONFIG_CAVIUM_ERRATUM_23144=y

 -- Luis Henriques <luis.henriques@xxxxxxxxxxxxx>  Fri, 24 Jun 2016
09:57:21 +0100

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

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-4482

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-4569

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-4578

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-4951

-- 
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https://bugs.launchpad.net/bugs/1584827

Title:
  s390/mm: fix asce_bits handling with dynamic pagetable levels

Status in Ubuntu on IBM z Systems:
  Fix Committed
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Wily:
  Invalid
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released

Bug description:
  == Comment: #0 - Hendrik Brueckner <brueckner@xxxxxxxxxx> - 2016-05-23 09:17:08 ==
  Please backport the following linux stable commit ID:

  linux-stable: https://git.kernel.org/cgit/linux/kernel/git/stable
  /linux-
  stable.git/commit/?h=linux-4.4.y&id=ce1bc448bac01edfccdc26d8318cfd39aa09e6e0

  
  s390/mm: fix asce_bits handling with dynamic pagetable levels
  commit 723cacbd9dc79582e562c123a0bacf8bfc69e72a upstream.

  There is a race with multi-threaded applications between context switch and
  pagetable upgrade. In switch_mm() a new user_asce is built from mm->pgd and
  mm->context.asce_bits, w/o holding any locks. A concurrent mmap with a
  pagetable upgrade on another thread in crst_table_upgrade() could already
  have set new asce_bits, but not yet the new mm->pgd. This would result in a
  corrupt user_asce in switch_mm(), and eventually in a kernel panic from a
  translation exception.

  Fix this by storing the complete asce instead of just the asce_bits, which
  can then be read atomically from switch_mm(), so that it either sees the
  old value or the new value, but no mixture. Both cases are OK. Having the
  old value would result in a page fault on access to the higher level memory,
  but the fault handler would see the new mm->pgd, if it was a valid access
  after the mmap on the other thread has completed. So as worst-case scenario
  we would have a page fault loop for the racing thread until the next time
  slice.

  Also remove dead code and simplify the upgrade/downgrade path, there are no
  upgrades from 2 levels, and only downgrades from 3 levels for compat tasks.
  There are also no concurrent upgrades, because the mmap_sem is held with
  down_write() in do_mmap, so the flush and table checks during upgrade can
  be removed.

  Reported-by: Michael Munday <munday@xxxxxxxxxx>
  Reviewed-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
  Signed-off-by: Gerald Schaefer <gerald.schaefer@xxxxxxxxxx>
  Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
  Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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