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[Launchpad Bug Tracker <1349768@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.13.0-39.66

---------------
linux (3.13.0-39.66) trusty; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1386629

  [ Upstream Kernel Changes ]

  * KVM: x86: Check non-canonical addresses upon WRMSR
    - LP: #1384539
    - CVE-2014-3610
  * KVM: x86: Prevent host from panicking on shared MSR writes.
    - LP: #1384539
    - CVE-2014-3610
  * KVM: x86: Improve thread safety in pit
    - LP: #1384540
    - CVE-2014-3611
  * KVM: x86: Fix wrong masking on relative jump/call
    - LP: #1384545
    - CVE-2014-3647
  * KVM: x86: Warn if guest virtual address space is not 48-bits
    - LP: #1384545
    - CVE-2014-3647
  * KVM: x86: Emulator fixes for eip canonical checks on near branches
    - LP: #1384545
    - CVE-2014-3647
  * KVM: x86: emulating descriptor load misses long-mode case
    - LP: #1384545
    - CVE-2014-3647
  * KVM: x86: Handle errors when RIP is set during far jumps
    - LP: #1384545
    - CVE-2014-3647
  * kvm: vmx: handle invvpid vm exit gracefully
    - LP: #1384544
    - CVE-2014-3646
  * Input: synaptics - gate forcepad support by DMI check
    - LP: #1381815

linux (3.13.0-38.65) trusty; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1379244

  [ Andy Whitcroft ]

  * Revert "SAUCE: scsi: hyper-v storsvc switch up to SPC-3"
    - LP: #1354397
  * [Config] linux-image-extra is additive to linux-image
    - LP: #1375310
  * [Config] linux-image-extra postrm is not needed on purge
    - LP: #1375310

  [ Upstream Kernel Changes ]

  * Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
    - LP: #1377564
  * Revert "USB: option,zte_ev: move most ZTE CDMA devices to zte_ev"
    - LP: #1377564
  * aufs: bugfix, stop calling security_mmap_file() again
    - LP: #1371316
  * ipvs: fix ipv6 hook registration for local replies
    - LP: #1349768
  * Drivers: add blist flags
    - LP: #1354397
  * sd: fix a bug in deriving the FLUSH_TIMEOUT from the basic I/O timeout
    - LP: #1354397
  * drm/i915/bdw: Add 42ms delay for IPS disable
    - LP: #1374389
  * drm/i915: add null render states for gen6, gen7 and gen8
    - LP: #1374389
  * drm/i915/bdw: 3D_CHICKEN3 has write mask bits
    - LP: #1374389
  * drm/i915/bdw: Disable idle DOP clock gating
    - LP: #1374389
  * drm/i915: call lpt_init_clock_gating on BDW too
    - LP: #1374389
  * drm/i915: shuffle panel code
    - LP: #1374389
  * drm/i915: extract backlight minimum brightness from VBT
    - LP: #1374389
  * drm/i915: respect the VBT minimum backlight brightness
    - LP: #1374389
  * drm/i915/bdw: Apply workarounds in render ring init function
    - LP: #1374389
  * drm/i915/bdw: Cleanup pre prod workarounds
    - LP: #1374389
  * drm/i915: Replace hardcoded cacheline size with macro
    - LP: #1374389
  * drm/i915: Refactor Broadwell PIPE_CONTROL emission into a helper.
    - LP: #1374389
  * drm/i915: Add the WaCsStallBeforeStateCacheInvalidate:bdw workaround.
    - LP: #1374389
  * drm/i915/bdw: Remove BDW preproduction W/As until C stepping.
    - LP: #1374389
  * mptfusion: enable no_write_same for vmware scsi disks
    - LP: #1371591
  * iommu/amd: Fix cleanup_domain for mass device removal
    - LP: #1375266
  * cifs: mask off top byte in get_rfc1002_length()
    - LP: #1372482
  * Input: synaptics - add support for ForcePads
    - LP: #1377564
  * ASoC: pxa-ssp: drop SNDRV_PCM_FMTBIT_S24_LE
    - LP: #1377564
  * drm/radeon: add bapm module parameter
    - LP: #1377564
  * drm/radeon: Add missing lines to ci_set_thermal_temperature_range
    - LP: #1377564
  * drm/radeon: Add ability to get and change dpm state when radeon PX card
    is turned off
    - LP: #1377564
  * ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & co
    - LP: #1377564
  * of/irq: Fix lookup to use 'interrupts-extended' property first
    - LP: #1377564
  * Possible null ptr deref in SMB2_tcon
    - LP: #1377564
  * CIFS: Fix SMB2 readdir error handling
    - LP: #1377564
  * CIFS: Fix wrong directory attributes after rename
    - LP: #1377564
  * md/raid6: avoid data corruption during recovery of double-degraded
    RAID6
    - LP: #1377564
  * ARM: dts: i.MX53: fix apparent bug in VPU clks
    - LP: #1377564
  * pata_scc: propagate return value of scc_wait_after_reset
    - LP: #1377564
  * libata: widen Crucial M550 blacklist matching
    - LP: #1377564
  * ALSA: hda - restore the gpio led after resume
    - LP: #1358116, #1377564
  * md/raid10: fix memory leak when reshaping a RAID10.
    - LP: #1377564
  * md/raid10: Fix memory leak when raid10 reshape completes.
    - LP: #1377564
  * MIPS: OCTEON: make get_system_type() thread-safe
    - LP: #1377564
  * can: c_can: checking IS_ERR() instead of NULL
    - LP: #1377564
  * HID: logitech: perform bounds checking on device_id early enough
    - LP: #1377564
  * firmware: Do not use WARN_ON(!spin_is_locked())
    - LP: #1377564
  * drm/radeon: add new KV pci id
    - LP: #1377564
  * drm/radeon: add new bonaire pci ids
    - LP: #1377564
  * drm/radeon: add additional SI pci ids
    - LP: #1377564
  * ibmveth: Fix endian issues with rx_no_buffer statistic
    - LP: #1377564
  * spi/omap-mcspi: Fix the spi task hangs waiting dma_rx
    - LP: #1377564
  * xtensa: replace IOCTL code definitions with constants
    - LP: #1377564
  * xtensa: fix address checks in dma_{alloc,free}_coherent
    - LP: #1377564
  * xtensa: fix access to THREAD_RA/THREAD_SP/THREAD_DS
    - LP: #1377564
  * xtensa: fix TLBTEMP_BASE_2 region handling in fast_second_level_miss
    - LP: #1377564
  * xtensa: fix a6 and a7 handling in fast_syscall_xtensa
    - LP: #1377564
  * staging: lustre: Remove circular dependency on header
    - LP: #1377564
  * USB: option: reduce interrupt-urb logging verbosity
    - LP: #1377564
  * USB: option: add VIA Telecom CDS7 chipset device id
    - LP: #1377564
  * USB: zte_ev: remove duplicate Gobi PID
    - LP: #1377564
  * USB: zte_ev: remove duplicate Qualcom PID
    - LP: #1377564
  * USB: ftdi_sio: add Basic Micro ATOM Nano USB2Serial PID
    - LP: #1377564
  * USB: serial: pl2303: add device id for ztek device
    - LP: #1377564
  * USB: ftdi_sio: Added PID for new ekey device
    - LP: #1377564
  * xhci: Treat not finding the event_seg on COMP_STOP the same as
    COMP_STOP_INVAL
    - LP: #1377564
  * usb: xhci: amd chipset also needs short TX quirk
    - LP: #1377564
  * xhci: rework cycle bit checking for new dequeue pointers
    - LP: #1377564
  * spi/pxa2xx: Add ACPI ID for Intel Braswell
    - LP: #1377564
  * ALSA: core: fix buffer overflow in snd_info_get_line()
    - LP: #1377564
  * HID: logitech-dj: prevent false errors to be shown
    - LP: #1377564
  * usb: ehci: using wIndex + 1 for hub port
    - LP: #1377564
  * staging/rtl8188eu: add 0df6:0076 Sitecom Europe B.V.
    - LP: #1377564
  * staging: r8188eu: Add new USB ID
    - LP: #1377564
  * mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
    - LP: #1377564
  * trace: Fix epoll hang when we race with new entries
    - LP: #1377564
  * cfq-iosched: Fix wrong children_weight calculation
    - LP: #1377564
  * USB: sisusb: add device id for Magic Control USB video
    - LP: #1377564
  * NFSv4: Fix problems with close in the presence of a delegation
    - LP: #1377564
  * usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1
    - LP: #1377564
  * ARM: 8128/1: abort: don't clear the exclusive monitors
    - LP: #1377564
  * ARM: 8129/1: errata: work around Cortex-A15 erratum 830321 using dummy
    strex
    - LP: #1377564
  * USB: serial: fix potential stack buffer overflow
    - LP: #1377564
  * USB: serial: fix potential heap buffer overflow
    - LP: #1377564
  * ext4: update i_disksize coherently with block allocation on error path
    - LP: #1377564
  * jbd2: fix infinite loop when recovering corrupt journal blocks
    - LP: #1377564
  * jbd2: fix descriptor block size handling errors with journal_csum
    - LP: #1377564
  * memblock, memhotplug: fix wrong type in memblock_find_in_range_node().
    - LP: #1377564
  * xattr: fix check for simultaneous glibc header inclusion
    - LP: #1377564
  * KVM: s390: Fix user triggerable bug in dead code
    - LP: #1377564
  * KVM: s390/mm: try a cow on read only pages for key ops
    - LP: #1377564
  * regmap: Fix regcache debugfs initialization
    - LP: #1377564
  * regmap: Fix handling of volatile registers for format_write() chips
    - LP: #1377564
  * ASoC: rt5640: Do not allow regmap to use bulk read-write operations
    - LP: #1377564
  * drm/i915: Remove bogus __init annotation from DMI callbacks
    - LP: #1377564
  * hwmon: (ds1621) Update zbits after conversion rate change
    - LP: #1377564
  * arm64: ptrace: fix compat hardware watchpoint reporting
    - LP: #1377564
  * ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU
    - LP: #1377564
  * arm/arm64: KVM: Complete WFI/WFE instructions
    - LP: #1377564
  * get rid of propagate_umount() mistakenly treating slaves as busy.
    - LP: #1377564
  * fix EBUSY on umount() from MNT_SHRINKABLE
    - LP: #1377564
  * regmap: Don't attempt block writes when syncing cache on single_rw
    devices
    - LP: #1377564
  * drm/vmwgfx: Fix a potential infinite spin waiting for fifo idle
    - LP: #1377564
  * ALSA: hda - Fix digital mic on Acer Aspire 3830TG
    - LP: #1377564
  * xfs: don't dirty buffers beyond EOF
    - LP: #1377564
  * xfs: don't zero partial page cache pages during O_DIRECT writes
    - LP: #1377564
  * xfs: don't zero partial page cache pages during O_DIRECT writes
    - LP: #1377564
  * ALSA: hda - Fix COEF setups for ALC1150 codec
    - LP: #1377564
  * i2c: rcar: fix MNR interrupt handling
    - LP: #1377564
  * i2c: mv64xxx: continue probe when clock-frequency is missing
    - LP: #1377564
  * i2c: at91: Fix a race condition during signal handling in
    at91_do_twi_xfer.
    - LP: #1377564
  * i2c: at91: add bound checking on SMBus block length bytes
    - LP: #1377564
  * aio: add missing smp_rmb() in read_events_ring
    - LP: #1377564
  * KEYS: Fix use-after-free in assoc_array_gc()
    - LP: #1377564
  * ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock
    - LP: #1377564
  * USB: fix build error with CONFIG_PM_RUNTIME disabled
    - LP: #1377564
  * Linux 3.13.11.8
    - LP: #1377564
  * powerpc: Fix kdump hang issue on p8 with relocation on exception
    enabled.
    - LP: #1352056
  * net-gre-gro: Fix a bug that breaks the forwarding path
    - LP: #1377851
 -- Luis Henriques <luis.henriques@xxxxxxxxxxxxx>   Tue, 28 Oct 2014 10:29:51 +0000

-- 
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/1349768

Title:
  kernel 3.13.0-32 ipvs "IPv6 header not found" related to UDP socket
  sendto() EPERM errors

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Trusty:
  Fix Released
Status in “linux” source package in Utopic:
  Fix Released

Bug description:
  SRU Justificaton:

  [Impact]
  Users of ipvs may encounter dropped packets and message such as:
  [70325.516724] IPv6 header not found

  [Fix]
  Commit eb90b0c734ad793d5f5bf230a9e9a4dcc48df8aa.

  [Regression Potential]
  This changes NFPROTO_IPV4 to NFPROTO_IPV6 as we'd expect this nf_hook_ops struct to be in the code.

  --

  I have an Ubuntu 14.04 host that I am using as both a keepalived/ipvs
  loadbalancer and dnsmasq server for pxebooting servers.

  After updating linux-image 3.13.0-29.53 -> 3.13.0-32.57 I noticed that
  dnsmasq-tftp stopped working. pxeboot clients would hang on the
  "Loading ..../linux" TFTP transfer, with the transfer stalling roughly
  ~1000 blocks into the transfer:

  10:30:51.011728 IP 10.1.1.2.43540 > 10.1.12.1.49165: UDP, length 1412
  10:30:51.011924 IP 10.1.12.1.49165 > 10.1.1.2.43540: UDP, length 4
  10:30:51.012012 IP 10.1.1.2.43540 > 10.1.12.1.49165: UDP, length 1412
  10:30:51.012183 IP 10.1.12.1.49165 > 10.1.1.2.43540: UDP, length 4

  stracing dnsmasq I noticed something very odd: sendto() on the
  socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) would suddenly start
  persistently returning EPERM in mid-transfer, even when dnsmasq
  continued to periodically retry:

  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 1 (in [17], left {0, 249834})
  recvfrom(17, "\0\4\3\352", 4096, 0, NULL, NULL) = 4
  lseek(16, 1410816, SEEK_SET) = 1410816
  read(16, "\25\306\345f\2{\r\4)W\276\32\336q\252_\230q\213\341U\354\25\374k7\243\32\221X+\v"..., 1408) = 1408
  sendto(17, "\0\3\3\353\25\306\345f\2{\r\4)W\276\32\336q\252_\230q\213\341U\354\25\374k7\243\32"..., 1412, 0, {sa_family=AF_INET, sin_port=htons(49165), sin_addr=inet_addr("10.1.11.3")}, 16) = 1412
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 1 (in [17], left {0, 249839})
  recvfrom(17, "\0\4\3\353", 4096, 0, NULL, NULL) = 4
  lseek(16, 1412224, SEEK_SET) = 1412224
  read(16, "*\360 <C\363l\320:\256~\307\236\26P\323\274%\260\362\341&\232\r\243\370\224\277\221\\\307\372"..., 1408) = 1408
  sendto(17, "\0\3\3\354*\360 <C\363l\320:\256~\307\236\26P\323\274%\260\362\341&\232\r\243\370\224\277"..., 1412, 0, {sa_family=AF_INET, sin_port=htons(49165), sin_addr=inet_addr("10.1.11.3")}, 16) = -1 EPERM (Operation not permitted)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  select(18, [4 5 6 7 8 9 10 11 12 15 17], [], [], {0, 250000}) = 0 (Timeout)
  lseek(16, 1412224, SEEK_SET) = 1412224
  read(16, "*\360 <C\363l\320:\256~\307\236\26P\323\274%\260\362\341&\232\r\243\370\224\277\221\\\307\372"..., 1408) = 1408
  sendto(17, "\0\3\3\354*\360 <C\363l\320:\256~\307\236\26P\323\274%\260\362\341&\232\r\243\370\224\277"..., 1412, 0, {sa_family=AF_INET, sin_port=htons(49165), sin_addr=inet_addr("10.1.11.3")}, 16) = -1 EPERM (Operation not permitted)

  This was with all iptables rules unloaded (so no OUTPUT -j DENY) and
  apparmor profiles torn down.

  I also noticed the following dmesgs appearing at roughly similar times
  to the tftp transfers getting stuck (although not coinciding exactly
  with the stall):

  [70325.516724] IPv6 header not found

  The error pointed to ipvs (which I am using on the same host as an IPv4 NAT loadbalancer):
  http://archive.linuxvirtualserver.org/html/lvs-devel/2012-08/msg00018.html
  http://comments.gmane.org/gmane.comp.linux.lvs.devel/3614

  I then tore down the ipvs rules (service keepalived stop) and unloaded
  the modules (rmmod ip_vs_rr ip_vs), and the issue resolved itself -
  the stalled dnsmasq-tftp transfer resumed!

  This seems to be reproducible, i.e. modprobing ip_vs and starting
  keepalived will cause dnsmasq-tftp to stall again, and
  stopping/unloading will resume.

  This seems to happen reproducibly on boot with -32 and -30. This does NOT seem to happen with 3.13.0-29 which I was using up until now.
  ---
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jul 29 13:43 seq
   crw-rw---- 1 root audio 116, 33 Jul 29 13:43 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=/dev/mapper/catcp2-swap
  InstallationDate: Installed on 2014-06-03 (56 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: Dell Inc. PowerEdge R410
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57
  PackageArchitecture: amd64
  PciMultimedia:

  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=C.UTF-8
   SHELL=/bin/bash
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/hostname-root ro console=ttyS1,115200n8 console=tty0 nomdmonddf nomdmonisw
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.5
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  trusty
  Uname: Linux 3.13.0-32-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 07/30/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.12.0
  dmi.board.name: 01V648
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A03
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.12.0:bd07/30/2013:svnDellInc.:pnPowerEdgeR410:pvr:rvnDellInc.:rn01V648:rvrA03:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R410
  dmi.sys.vendor: Dell Inc.

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