kernel-packages team mailing list archive

[Launchpad Bug Tracker <1551419@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux-lts-utopic -
3.16.0-67.87~14.04.1

---------------
linux-lts-utopic (3.16.0-67.87~14.04.1) trusty; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1555847

  [ Florian Westphal ]

  * SAUCE: [nf,v2] netfilter: x_tables: don't rely on well-behaving
    userspace
    - LP: #1555338

linux-lts-utopic (3.16.0-66.86~14.04.1) trusty; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1555277

  [ Upstream Kernel Changes ]

  * Revert "drm/radeon: call hpd_irq_event on resume"
    - LP: #1554608

linux-lts-utopic (3.16.0-65.85~14.04.1) trusty; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1552352

  [ Upstream Kernel Changes ]

  * Revert "firmware: dmi_scan: Fix UUID endianness for SMBIOS >= 2.6"
    - LP: #1551419

linux-lts-utopic (3.16.0-64.84~14.04.1) trusty; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1550605

  [ Kamal Mostafa ]

  * Merged back 3.16.0-63.83~14.04.1

linux-lts-utopic (3.16.0-63.83~14.04.1) trusty; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1548934

  [ Dan Streetman ]

  * SAUCE: nbd: ratelimit error msgs after socket close
    - LP: #1505564

  [ Upstream Kernel Changes ]

  * Revert "workqueue: make sure delayed work run in local cpu"
    - LP: #1546320
  * drm/nouveau/nv46: Change mc subdev oclass from nv44 to nv4c
    - LP: #1543126
  * veth: don’t modify ip_summed; doing so treats packets with bad
    checksums as good.
    - LP: #1543126
  * sctp: sctp should release assoc when sctp_make_abort_user return NULL
    in sctp_close
    - LP: #1543126
  * connector: bump skb->users before callback invocation
    - LP: #1543126
  * unix: properly account for FDs passed over unix sockets
    - LP: #1543126
  * bridge: Only call /sbin/bridge-stp for the initial network namespace
    - LP: #1543126
  * vxlan: fix test which detect duplicate vxlan iface
    - LP: #1543126
  * net: sctp: prevent writes to cookie_hmac_alg from accessing invalid
    memory
    - LP: #1543126
  * tcp_yeah: don't set ssthresh below 2
    - LP: #1543126
  * bonding: Prevent IPv6 link local address on enslaved devices
    - LP: #1543126
  * phonet: properly unshare skbs in phonet_rcv()
    - LP: #1543126
  * net: bpf: reject invalid shifts
    - LP: #1543126
  * ipv6: update skb->csum when CE mark is propagated
    - LP: #1543126
  * team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid
    - LP: #1543126
  * xen-netback: respect user provided max_queues
    - LP: #1543126
  * xen-netfront: respect user provided max_queues
    - LP: #1543126
  * xen-netfront: print correct number of queues
    - LP: #1543126
  * xen-netfront: update num_queues to real created
    - LP: #1543126
  * sctp: Prevent soft lockup when sctp_accept() is called during a timeout
    event
    - LP: #1543126
  * sctp: convert sack_needed and sack_generation to bits
    - LP: #1543126
  * sctp: start t5 timer only when peer rwnd is 0 and local state is
    SHUTDOWN_PENDING
    - LP: #1543126
  * nfs: Fix unused variable error
    - LP: #1543126
  * [media] gspca: ov534/topro: prevent a division by 0
    - LP: #1543126
  * [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode
    - LP: #1543126
  * tools lib traceevent: Fix output of %llu for 64 bit values read on 32
    bit machines
    - LP: #1543126
  * KVM: x86: expose MSR_TSC_AUX to userspace
    - LP: #1543126
  * KVM: x86: correctly print #AC in traces
    - LP: #1543126
  * drm/radeon: call hpd_irq_event on resume
    - LP: #1543126
  * xhci: refuse loading if nousb is used
    - LP: #1543126
  * arm64: Clear out any singlestep state on a ptrace detach operation
    - LP: #1543126
  * time: Avoid signed overflow in timekeeping_get_ns()
    - LP: #1543126
  * Bluetooth: Add support of Toshiba Broadcom based devices
    - LP: #1522949, #1543126
  * rtlwifi: fix memory leak for USB device
    - LP: #1543126
  * wlcore/wl12xx: spi: fix oops on firmware load
    - LP: #1543126
  * EDAC: Fix the leak of mci->bus->name when bus_register fails
    - LP: #1543126
  * EDAC, mc_sysfs: Fix freeing bus' name
    - LP: #1543126
  * EDAC: Robustify workqueues destruction
    - LP: #1543126
  * arm64: mm: ensure that the zero page is visible to the page table
    walker
    - LP: #1543126
  * powerpc: Make value-returning atomics fully ordered
    - LP: #1543126
  * powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered
    - LP: #1543126
  * dm space map metadata: remove unused variable in brb_pop()
    - LP: #1543126
  * dm thin: fix race condition when destroying thin pool workqueue
    - LP: #1543126
  * futex: Drop refcount if requeue_pi() acquired the rtmutex
    - LP: #1543126
  * arm64: mdscr_el1: avoid exposing DCC to userspace
    - LP: #1543126
  * arm64: kernel: enforce pmuserenr_el0 initialization and restore
    - LP: #1543126
  * drm/radeon: clean up fujitsu quirks
    - LP: #1543126
  * mmc: sdio: Fix invalid vdd in voltage switch power cycle
    - LP: #1543126
  * mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()
    - LP: #1543126
  * udf: limit the maximum number of indirect extents in a row
    - LP: #1543126
  * nfs: Fix race in __update_open_stateid()
    - LP: #1543126
  * USB: cp210x: add ID for ELV Marble Sound Board 1
    - LP: #1543126
  * posix-clock: Fix return code on the poll method's error path
    - LP: #1543126
  * rtlwifi: rtl8192de: Fix incorrect module parameter descriptions
    - LP: #1543126
  * rtlwifi: rtl8192se: Fix module parameter initialization
    - LP: #1543126
  * rtlwifi: rtl8192ce: Fix handling of module parameters
    - LP: #1543126
  * rtlwifi: rtl8192cu: Add missing parameter setup
    - LP: #1543126
  * NFSv4: Don't perform cached access checks before we've OPENed the file
    - LP: #1543126
  * NFS: Fix attribute cache revalidation
    - LP: #1543126
  * bcache: fix a livelock when we cause a huge number of cache misses
    - LP: #1543126
  * bcache: Add a cond_resched() call to gc
    - LP: #1543126
  * bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing
    device
    - LP: #1543126
  * bcache: fix a leak in bch_cached_dev_run()
    - LP: #1543126
  * bcache: unregister reboot notifier if bcache fails to unregister device
    - LP: #1543126
  * bcache: allows use of register in udev to avoid "device_busy" error.
    - LP: #1543126
  * bcache: Change refill_dirty() to always scan entire disk if necessary
    - LP: #1543126
  * wlcore/wl12xx: spi: fix NULL pointer dereference (Oops)
    - LP: #1543126
  * Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
    - LP: #1543126
  * libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct
    - LP: #1543126
  * x86/xen: don't reset vcpu_info on a cancelled suspend
    - LP: #1543126
  * udf: Prevent buffer overrun with multi-byte characters
    - LP: #1543126
  * udf: Check output buffer length when converting name to CS0
    - LP: #1543126
  * PCI: Fix minimum allocation address overwrite
    - LP: #1543126
  * PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD
    - LP: #1543126
  * iwlwifi: update and fix 7265 series PCI IDs
    - LP: #1543126
  * locks: fix unlock when fcntl_setlk races with a close
    - LP: #1543126
  * ASoC: compress: Fix compress device direction check
    - LP: #1543126
  * dm snapshot: fix hung bios when copy error occurs
    - LP: #1543126
  * uml: fix hostfs mknod()
    - LP: #1543126
  * uml: flush stdout before forking
    - LP: #1543126
  * drm/nouveau/kms: take mode_config mutex in connector hotplug path
    - LP: #1543126
  * x86/mm: Add barriers and document switch_mm()-vs-flush synchronization
    - LP: #1543126
  * x86/boot: Double BOOT_HEAP_SIZE to 64KB
    - LP: #1543126
  * s390: fix normalization bug in exception table sorting
    - LP: #1543126
  * xfs: inode recovery readahead can race with inode buffer creation
    - LP: #1543126
  * xfs: handle dquot buffer readahead in log recovery correctly
    - LP: #1543126
  * clocksource/drivers/vt8500: Increase the minimum delta
    - LP: #1543126
  * Input: elantech - mark protocols v2 and v3 as semi-mt
    - LP: #1543126
  * x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]
    - LP: #1543126
  * ALSA: seq: Fix missing NULL check at remove_events ioctl
    - LP: #1543126
  * ALSA: seq: Fix race at timer setup and close
    - LP: #1543126
  * virtio_balloon: fix race by fill and leak
    - LP: #1543126
  * virtio_balloon: fix race between migration and ballooning
    - LP: #1543126
  * parisc: Fix __ARCH_SI_PREAMBLE_SIZE
    - LP: #1543126
  * scripts/recordmcount.pl: support data in text section on powerpc
    - LP: #1543126
  * powerpc/module: Handle R_PPC64_ENTRY relocations
    - LP: #1543126
  * x86/mm: Improve switch_mm() barrier comments
    - LP: #1543126
  * ALSA: timer: Fix double unlink of active_list
    - LP: #1543126
  * dmaengine: dw: fix cyclic transfer setup
    - LP: #1543126
  * dmaengine: dw: fix cyclic transfer callbacks
    - LP: #1543126
  * mmc: mmci: fix an ages old detection error
    - LP: #1543126
  * ALSA: timer: Fix race among timer ioctls
    - LP: #1543126
  * sparc64: fix incorrect sign extension in sys_sparc64_personality
    - LP: #1543126
  * cifs: fix race between call_async() and reconnect()
    - LP: #1543126
  * cifs_dbg() outputs an uninitialized buffer in cifs_readdir()
    - LP: #1543126
  * m32r: fix m32104ut_defconfig build fail
    - LP: #1543126
  * dma-debug: switch check from _text to _stext
    - LP: #1543126
  * scripts/bloat-o-meter: fix python3 syntax error
    - LP: #1543126
  * ocfs2/dlm: ignore cleaning the migration mle that is inuse
    - LP: #1543126
  * ALSA: timer: Harden slave timer list handling
    - LP: #1543126
  * zram/zcomp: use GFP_NOIO to allocate streams
    - LP: #1543126
  * zram: try vmalloc() after kmalloc()
    - LP: #1543126
  * mm: soft-offline: check return value in second __get_any_page() call
    - LP: #1543126
  * memcg: only free spare array when readers are done
    - LP: #1543126
  * panic: release stale console lock to always get the logbuf printed out
    - LP: #1543126
  * kernel/panic.c: turn off locks debug before releasing console lock
    - LP: #1543126
  * printk: do cond_resched() between lines while outputting to consoles
    - LP: #1543126
  * ALSA: hda - Fix bass pin fixup for ASUS N550JX
    - LP: #1543126
  * crypto: af_alg - Disallow bind/setkey/... after accept(2)
    - LP: #1543126
  * crypto: af_alg - Fix socket double-free when accept fails
    - LP: #1543126
  * crypto: af_alg - Add nokey compatibility path
    - LP: #1543126
  * crypto: hash - Add crypto_ahash_has_setkey
    - LP: #1543126
  * crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey
    path
    - LP: #1543126
  * crypto: af_alg - Forbid bind(2) when nokey child sockets are present
    - LP: #1543126
  * ALSA: hrtimer: Fix stall by hrtimer_cancel()
    - LP: #1543126
  * ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode
    - LP: #1543126
  * ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
    - LP: #1543126
  * ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0
    - LP: #1543126
  * crypto: algif_skcipher - Load TX SG list after waiting
    - LP: #1543126
  * crypto: crc32c - Fix crc32c soft dependency
    - LP: #1543126
  * IB/qib: fix mcast detach when qp not attached
    - LP: #1543126
  * IB/qib: Support creating qps with GFP_NOIO flag
    - LP: #1543126
  * ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list
    - LP: #1543126
  * iscsi-target: Fix potential dead-lock during node acl delete
    - LP: #1543126
  * ALSA: timer: Handle disconnection more safely
    - LP: #1543126
  * ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with
    ocfs2_unblock_lock
    - LP: #1543126
  * MAINTAINERS: return arch/sh to maintained state, with new maintainers
    - LP: #1543126
  * ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
    - LP: #1543126
  * drm/i915: avoid deadlock on failure paths in
    __intel_framebuffer_create()
    - LP: #1543126
  * drm/i915: On fb alloc failure, unref gem object where it gets refed
    - LP: #1543126
  * [media] rc: allow rc modules to be loaded if rc-main is not a module
    - LP: #1543126
  * SCSI: initio: remove duplicate module device table
    - LP: #1543126
  * clk: xgene: Fix divider with non-zero shift value
    - LP: #1543126
  * clk: st: avoid uninitialized variable use
    - LP: #1543126
  * ath9k_htc: check for underflow in ath9k_htc_rx_msg()
    - LP: #1543126
  * mtd: nand: fix ONFI parameter page layout
    - LP: #1543126
  * mtd: nand: denali: add missing nand_release() call in denali_remove()
    - LP: #1543126
  * mtd: nand: remove unused and buggy get_platform_nandchip() helper
    function
    - LP: #1543126
  * ALSA: fm801: propagate TUNER_ONLY bit when autodetected
    - LP: #1543126
  * pinctrl: bcm2835: Fix memory leak in error path
    - LP: #1543126
  * x86/LDT: Print the real LDT base address
    - LP: #1543126
  * sysrq: Fix warning in sysrq generated crash.
    - LP: #1543126
  * kconfig: return 'false' instead of 'no' in bool function
    - LP: #1543126
  * perf/x86: Fix filter_events() bug with event mappings
    - LP: #1543126
  * power: test_power: correctly handle empty writes
    - LP: #1543126
  * firmware: actually return NULL on failed request_firmware_nowait()
    - LP: #1543126
  * target: Fix a memory leak in target_dev_lba_map_store()
    - LP: #1543126
  * um: Fix build error and kconfig for i386
    - LP: #1543126
  * ipv6: tcp: add rcu locking in tcp_v6_send_synack()
    - LP: #1543126
  * mmc: sd: limit SD card power limit according to cards capabilities
    - LP: #1543126
  * Btrfs: clean up an error code in btrfs_init_space_info()
    - LP: #1543126
  * bridge: fix lockdep addr_list_lock false positive splat
    - LP: #1543126
  * batman-adv: Avoid recursive call_rcu for batadv_bla_claim
    - LP: #1543126
  * batman-adv: Avoid recursive call_rcu for batadv_nc_node
    - LP: #1543126
  * batman-adv: fix potential TT client + orig-node memory leak
    - LP: #1543126
  * batman-adv: Drop immediate batadv_orig_ifinfo free function
    - LP: #1543126
  * batman-adv: Drop immediate batadv_neigh_node free function
    - LP: #1543126
  * batman-adv: Drop immediate neigh_ifinfo free function
    - LP: #1543126
  * batman-adv: Drop immediate batadv_hard_iface free function
    - LP: #1543126
  * batman-adv: Drop immediate orig_node free function
    - LP: #1543126
  * printk: help pr_debug and pr_devel to optimize out arguments
    - LP: #1543126
  * mmc: debugfs: correct wrong voltage value
    - LP: #1543126
  * IB/mlx4: Initialize hop_limit when creating address handle
    - LP: #1543126
  * net/mlx4: Remove unused macro
    - LP: #1543126
  * arm64: fix building without CONFIG_UID16
    - LP: #1543126
  * mn10300: Select CONFIG_HAVE_UID16 to fix build failure
    - LP: #1543126
  * openrisc: fix CONFIG_UID16 setting
    - LP: #1543126
  * cifs: Ratelimit kernel log messages
    - LP: #1543126
  * HID: usbhid: fix recursive deadlock
    - LP: #1543126
  * Linux 3.16.7-ckt24
    - LP: #1543126
  * qeth: initialize net_device with carrier off
    - LP: #1541907
  * netfilter: bridge: don't use nf_bridge_info data to store mac header
    - LP: #1463911
  * netfilter: bridge: restore vlan tag when refragmenting
    - LP: #1463911
  * netfilter: bridge: forward IPv6 fragmented packets
    - LP: #1463911
  * netfilter: bridge: Use __in6_dev_get rather than in6_dev_get in
    br_validate_ipv6
    - LP: #1463911
  * ALSA: usb-audio: avoid freeing umidi object twice
    - LP: #1546177
    - CVE-2016-2384
  * vmstat: explicitly schedule per-cpu work on the CPU we need it to run
    on
    - LP: #1546320

 -- Brad Figg <brad.figg@xxxxxxxxxxxxx>  Thu, 10 Mar 2016 15:11:47 -0800

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1551419

Title:
  [SRU] Handle changing UUID endian-ness on Azure in cloud-init

Status in cloud-init package in Ubuntu:
  Invalid
Status in linux package in Ubuntu:
  Invalid
Status in linux-keystone package in Ubuntu:
  Invalid
Status in cloud-init source package in Trusty:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux-keystone source package in Trusty:
  Fix Committed
Status in linux-lts-utopic source package in Trusty:
  Fix Released
Status in cloud-init source package in Vivid:
  Invalid
Status in linux source package in Vivid:
  Fix Released
Status in linux-keystone source package in Vivid:
  Invalid

Bug description:
  On Azure, cloud-init relies on the system-uuid as based by SMBIOS a
  unique ID for a cloud instance.  If this ID ever changes, then cloud-
  init will attempt to reprovision the VM.

  This recent kernel patch in the Ubuntu kernel incorrectly modifies the
  endianness for some SMBIOS fields, which has the effect causing cloud-
  init to think that the system-uuid has changed:
  http://kernel.ubuntu.com/git/ubuntu/ubuntu-
  trusty.git/commit/drivers/firmware?id=3ec24c55be6c543797ba3ee9a227a5631aef607e

  cloud-init needs to consider both the reported UUID and the "first
  three fields endian-reversed" UUID as the same, so that users shifting
  between unaffected kernels and affected kernels, or affected kernels
  and fixed kernels do not see their instances reprovisioned.

  [Impact]

  The impact is that cloud-init attempts to reprovision VMs when they
  reboot to use the new kernel, often causing the customer to lose
  access to their VM.

  Once the kernel is fixed, rebooting from an affected kernel to the new
  kernel will have the same effect.

  [Test Case]

  Failure:

  1) Boot an Azure instance using an image with a pre-broken kernel (e.g. b39f27a8b8c64d52b05eac6a62ebad85__Ubuntu-14_04_3-LTS-amd64-server-20160201-en-us-30GB)
  2) Upgrade the kernel and reboot.
  3) SSH to the instance; you will observe that you are prompted to change SSH host keys because cloud-init has run again.

  Success (upgrade from not broken->broken):

  1) Boot an Azure instance using an image with a pre-broken kernel (e.g. b39f27a8b8c64d52b05eac6a62ebad85__Ubuntu-14_04_3-LTS-amd64-server-20160201-en-us-30GB)
  2) Install the new version of cloud-init.
  3) Upgrade the kernel and reboot.
  4) Observe that you are not prompted when SSHing to instance, as cloud-init has not run again.
  5) Make a note of the instance ID in use (i.e. the target of /var/lib/cloud/instance
  6) Reboot again.
  7) Observe that the instance ID has not changed.

  Success (upgrade from broken->fixed):
  1) Boot an Azure instance using an image with a broken kernel (e.g. b39f27a8b8c64d52b05eac6a62ebad85__Ubuntu-14_04_4-LTS-amd64-server-20160222-en-us-30GB)
  2) Install the new version of cloud-init.
  3) Upgrade to the fixed kernel (once it is available) and reboot.
  4) Observe that you are not prompted when SSHing to instance, as cloud-init has not run again.

  Success (upgrade from not broken->fixed):
  1) Boot an Azure instance using an image with a pre-broken kernel (e.g. b39f27a8b8c64d52b05eac6a62ebad85__Ubuntu-14_04_3-LTS-amd64-server-20160201-en-us-30GB)
  2) Install the new version of cloud-init.
  3) Upgrade to the fixed kernel (once it is available) and reboot.
  4) Observe that you are not prompted when SSHing to instance, as cloud-init has not run again.

  [Regression Potential]

  The change is limited to the Azure data source.  It affects how
  instance IDs are determined, but the change does so in a limited way.

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