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[Launchpad Bug Tracker <1605494@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.13.0-117.164

---------------
linux (3.13.0-117.164) trusty; urgency=low

  * linux: 3.13.0-117.164 -proposed tracker (LP: #1680733)

  * CVE-2017-6353
    - sctp: deny peeloff operation on asocs with threads sleeping on it

  * CVE-2017-5986
    - sctp: avoid BUG_ON on sctp_wait_for_sndbuf

  * Update ENA driver to 1.1.2 from net-next (LP: #1664312)
    - net: ena: Remove unnecessary pci_set_drvdata()
    - net: ena: Fix error return code in ena_device_init()
    - net: ena: change the return type of ena_set_push_mode() to be void.
    - net: ena: use setup_timer() and mod_timer()
    - net/ena: remove ntuple filter support from device feature list
    - net/ena: fix queues number calculation
    - net/ena: fix ethtool RSS flow configuration
    - net/ena: fix RSS default hash configuration
    - net/ena: fix NULL dereference when removing the driver after device reset
      failed
    - net/ena: refactor ena_get_stats64 to be atomic context safe
    - net/ena: fix potential access to freed memory during device reset
    - net/ena: use READ_ONCE to access completion descriptors
    - net/ena: reduce the severity of ena printouts
    - net/ena: change driver's default timeouts
    - net/ena: change condition for host attribute configuration
    - net/ena: update driver version to 1.1.2

  * [Xenial - 16.04 ]Bonding driver - stack corruption when trying to copy 20
    bytes to a sockaddr (LP: #1668042)
    - net/bonding: Enforce active-backup policy for IPoIB bonds

  * stress_smoke_test passing and exiting rc=9 (linux 4.9.0-12.13 ADT test
    failure with linux 4.9.0-12.13) (LP: #1658633)
    - ext4: lock the xattr block before checksuming it

  * vmxnet3 LRO IPv6 performance issues (stalling TCP) (LP: #1605494)
    - Driver: Vmxnet3: set CHECKSUM_UNNECESSARY for IPv6 packets

  * move aufs.ko from -extra to linux-image package (LP: #1673498)
    - [config] aufs.ko moved to linux-image package

  * lsattr 32bit does not work on 64bit kernel (Inappropriate ioctl error)
    (LP: #1619918)
    - btrfs: fix btrfs_compat_ioctl failures on non-compat ioctls

 -- Kleber Sacilotto de Souza <kleber.souza@xxxxxxxxxxxxx>  Thu, 06 Apr
2017 17:52:50 +0100

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

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-5986

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-6353

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

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https://bugs.launchpad.net/bugs/1605494

Title:
  vmxnet3 LRO IPv6 performance issues (stalling TCP)

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released

Bug description:
  We have performance problems with TCP over IPv6 with SSH/SCP and HTTP traffic on Linux guest virtual machines running on VMware ESXi (6.0u2). We are running Ubuntu 12.04.5 LTS, 14.04.3 LTS and soon 16.04.1 LTS.
  If we upload (large) files with these protocols the performance go's down to 200kb/s.
  With IPv4, we have a much higher performance.

  This is a known issue in the vmxnet3 driver that is fixed upstream on the 21th of April:
  "This is due to check sum handling issue in the vmxnet3 driver. Fix is on 
  the kernel tree." http://comments.gmane.org/gmane.linux.network/401727

  Kernel Patch:
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d437809d23999cb25207cfbe80c61e5703fdc1

  Another example of someone who has this problem:
  https://lists.debian.org/debian-kernel/2016/03/msg00001.html
  https://lists.debian.org/debian-kernel/2016/03/msg00002.html

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-61-generic 3.13.0-61.100
  ProcVersionSignature: Ubuntu 3.13.0-61.100-generic 3.13.11-ckt22
  Uname: Linux 3.13.0-61-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jul 12 14:04 seq
   crw-rw---- 1 root audio 116, 33 Jul 12 14:04 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.1-0ubuntu3.21
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  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: 'iw'
  Date: Fri Jul 22 08:05:09 2016
  HibernationDevice: RESUME=UUID=4b881d72-9266-45cd-a12f-f21b55fe1ae7
  InstallationDate: Installed on 2014-05-08 (805 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  MachineType: VMware, Inc. VMware Virtual Platform
  PciMultimedia:
   
  ProcFB: 0 svgadrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-61-generic root=/dev/mapper/system-root ro
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-61-generic N/A
   linux-backports-modules-3.13.0-61-generic  N/A
   linux-firmware                             1.127.22
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   
  dmi.bios.date: 09/21/2015
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 6.00
  dmi.board.name: 440BX Desktop Reference Platform
  dmi.board.vendor: Intel Corporation
  dmi.board.version: None
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd09/21/2015:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
  dmi.product.name: VMware Virtual Platform
  dmi.product.version: None
  dmi.sys.vendor: VMware, Inc.

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