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[Bug 1503902] Re: Network stops working after inserting nf_conntrack.ko to kernel

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1503902@xxxxxxxxxxxxxxxxxx>
Date: Sat, 10 Oct 2015 21:15:23 -0000
Reply-to: Bug 1503902 <1503902@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
This bug was fixed in the package linux - 4.2.0-16.19

---------------
linux (4.2.0-16.19) wily; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1504143
  * [Config] CONFIG_X86_LEGACY_VM86=y, CONFIG_VM86=y for i386
    - LP: #1499089
  * [Config] CONFIG_MODIFY_LDT_SYSCALL=y
    - LP: #1499089
  * SAUCE: intel_pstate: Allow manually forcing the use of HWP on Skylake-S
  * [Config] CONFIG_ARM64_ERRATUM_843419=n
    - LP: #1502946
  * [Config] CONFIG_CAVIUM_ERRATUM_22375=y, CONFIG_CAVIUM_ERRATUM_23154=y

  [ Christophe Lombard ]

  * SAUCE: (noup) cxl: Fix number of allocated pages in SPA
    - LP: #1499849

  [ Matthew R. Ochs ]

  * SAUCE: (noup) cxlflash: Fix to avoid corrupting port selection mask

  [ Robert Richter ]

  * SAUCE: (noup) irqchip/gicv3-its: Add range check for number of
    allocated pages
  * SAUCE: (noup) irqchip/gicv3: Workaround for Cavium ThunderX erratum
    23154
  * SAUCE: (noup) irqchip/gicv3-its: Read typer register outside the loop
  * SAUCE: (noup) irqchip/gicv3-its: Add HW revision detection and
    configuration
  * SAUCE: (noup) irqchip/gicv3-its: Workaround for Cavium ThunderX errata
    22375, 24313

  [ Upstream Kernel Changes ]

  * x86/compat: Define ARCH_WANT_OLD_COMPAT_IPC only for 32-bit compat
    - LP: #1499089
  * x86/compat: Clean up HAVE_UID16 config
    - LP: #1499089
  * x86/compat: Separate ia32 and x32 compat ABIs
    - LP: #1499089
  * x86/entry/vm86: Clean up saved_fs/gs
    - LP: #1499089
  * x86/entry/vm86: Preserve 'orig_ax'
    - LP: #1499089
  * x86/entry/vm86: Move userspace accesses to do_sys_vm86()
    - LP: #1499089
  * x86/kconfig/32: Rename CONFIG_VM86 and default it to 'n'
    - LP: #1499089
  * x86/ldt: Make modify_ldt() optional
    - LP: #1499089
  * x86/vm86: Move vm86 fields out of 'thread_struct'
    - LP: #1499089
  * x86/vm86: Move fields from 'struct kernel_vm86_struct' to 'struct vm86'
    - LP: #1499089
  * x86/vm86: Eliminate 'struct kernel_vm86_struct'
    - LP: #1499089
  * x86/vm86: Use the normal pt_regs area for vm86
    - LP: #1499089
  * x86/vm86: Move the vm86 IRQ definitions to vm86.h
    - LP: #1499089
  * x86/vm86: Clean up vm86.h includes
    - LP: #1499089
  * x86/vm86: Rename vm86->vm86_info to user_vm86
    - LP: #1499089
  * x86/vm86: Rename vm86->v86flags and v86mask
    - LP: #1499089
  * x86/selftests, x86/vm86: Improve entry_from_vm86 selftest
    - LP: #1499089
  * selftests/x86/vm86: Fix entry_from_vm86 test on 64-bit kernels
    - LP: #1499089
  * x86/vm86: Block non-root vm86(old) if mmap_min_addr != 0
    - LP: #1499089
  * x86/vm86: Fix the misleading CONFIG_VM86 Kconfig help text
    - LP: #1499089
  * netfilter: conntrack: use nf_ct_tmpl_free in CT/synproxy error paths
    - LP: #1503902

linux (4.2.0-15.18) wily; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1503692

  [ Andy Whitcroft ]

  * Revert "SAUCE: aufs3: mmap: Fix races in madvise_remove() and sys_msync()"
    Was incorrectly backported.

  [ Ben Hutchings ]

  * SAUCE: aufs3: mmap: Fix races in madvise_remove() and sys_msync()
    - CVE-2015-7312

  [ Tim Gardner ]

  * [Debian] config-check and prepare using ${DEBIAN}/config/annotations
    Makes the LTS update script work better.

linux (4.2.0-15.17) wily; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1503016
  * rebase to v4.2.3

  [ Andrew Donnellan ]

  * SAUCE: cxl: fix leak of IRQ names in cxl_free_afu_irqs()
  * SAUCE: cxl: fix leak of ctx->irq_bitmap when releasing context via
    kernel API
  * SAUCE: cxl: fix leak of ctx->mapping when releasing kernel API contexts

  [ Ben Hutchings ]

  * SAUCE: aufs3: mmap: Fix races in madvise_remove() and sys_msync()
    - CVE-2015-7312

  [ Dan Carpenter ]

  * SAUCE: (noup) cxlflash: a couple off by one bugs
    - LP: #1499849

  [ John Johansen ]

  * SAUCE: (no-up) apparmor: fix mount not handling disconnected paths
    - LP: #1496430

  [ Manoj Kumar ]

  * SAUCE: (noup) cxlflash: Fix to avoid invalid port_sel value
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Replace magic numbers with literals
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix read capacity timeout
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to double the delay each time
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to escalate to LINK_RESET on login timeout
    - LP: #1499849

  [ Matthew R. Ochs ]

  * SAUCE: (noup) cxlflash: Fix potential oops following LUN removal
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix data corruption when vLUN used over
    multiple cards
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to avoid sizeof(bool)
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix context encode mask width
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to avoid CXL services during EEH
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Correct naming of limbo state and waitq
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Make functions static
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Refine host/device attributes
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to avoid spamming the kernel log
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to avoid stall while waiting on TMF
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix location of setting resid
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix host link up event handling
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix async interrupt bypass logic
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Remove dual port online dependency
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix AFU version access/storage and add check
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Correct usage of scsi_host_put()
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to prevent workq from accessing freed
    memory
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Correct behavior in device reset handler
    following EEH
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Remove unnecessary scsi_block_requests
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix function prolog parameters and return codes
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix MMIO and endianness errors
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to prevent EEH recovery failure
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Correct spelling, grammar, and alignment
    mistakes
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to prevent stale AFU RRQ
    - LP: #1499849
  * SAUCE: (noup) MAINTAINERS: Add cxlflash driver
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to avoid corrupting adapter fops
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Correct trace string
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to avoid potential deadlock on EEH
    - LP: #1499849
  * SAUCE: (noup) cxlflash: Fix to avoid leaving dangling interrupt
    resources
    - LP: #1499849

  [ Philippe Bergheaud ]

  * SAUCE: cxl: Workaround malformed pcie packets on some cards

  [ Tim Gardner ]

  * [Config] CONFIG_CC_STACKPROTECTOR_STRONG=y
    - LP: #1380025
  * [Config] Add MMC modules sufficient for net booting
    - LP: #1502772

  [ Upstream Kernel Changes ]

  * Initialize msg/shm IPC objects before doing ipc_addid()
  * RDS: verify the underlying transport exists before creating a
    connection
  * cxl: abort cxl_pci_enable_device_hook() if PCI channel is offline
  * cxl: Fix build failure due to -Wunused-variable behaviour change
  * cxl: Fix lockdep warning while creating afu_err_buff attribute
  * USB: whiteheat: fix potential null-deref at probe
    - LP: #1478826
    - CVE-2015-5257
  * dcache: Handle escaped paths in prepend_path
    - CVE-2015-2925
  * vfs: Test for and handle paths that are unreachable from their mnt_root
    - CVE-2015-2925
  * hv_netvsc: Add support to set MTU reservation from guest side
    - LP: #1494431
  * hv_netvsc: Add close of RNDIS filter into change mtu call
    - LP: #1494431

 -- Tim Gardner <tim.gardner@xxxxxxxxxxxxx>  Thu, 08 Oct 2015 08:37:53
-0400

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

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-2925

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-5257

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-7312

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1503902

Title:
  Network stops working after inserting nf_conntrack.ko to kernel

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Wily:
  Fix Released

Bug description:
  While evaluating Wily for further use I found that after random period
  of time Internet connection drops (while IP stack is configured
  properly) and system message log gets quickly filled with following
  messages:

  Oct 07 14:06:25 hikari kernel: nf_conntrack: table full, dropping packet
  Oct 07 14:06:26 hikari kernel: nf_conntrack: table full, dropping packet

  Problem occurs only if I manually load nf_conntrack or related kernel
  modules or start Shorewall (which loads nf_conntrack obviously).
  Removing nf_conntrack and nf_conntrack and dependent modules fixes
  problem and restores Internet connection.

  With older builds of linux kernel (4.1.0-*) everything works as
  expected.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-14-generic 4.2.0-14.16
  ProcVersionSignature: Ubuntu 4.2.0-14.16-generic 4.2.2
  Uname: Linux 4.2.0-14-generic x86_64
  ApportVersion: 2.19.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  blami      1805 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Oct  7 23:56:46 2015
  MachineType: LENOVO 2325DV5
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-14-generic root=UUID=ac8f53c6-5a42-45b3-aa74-4237647b3936 ro rootflags=subvol=@ quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-14-generic N/A
   linux-backports-modules-4.2.0-14-generic  N/A
   linux-firmware                            1.148
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   
  dmi.bios.date: 03/05/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ETA0WW (2.60 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2325DV5
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG2ETA0WW(2.60):bd03/05/2013:svnLENOVO:pn2325DV5:pvrThinkPadX230:rvnLENOVO:rn2325DV5:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2325DV5
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO

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References

[Bug 1503902] [NEW] Network stops working after inserting nf_conntrack.ko to kernel
From: Ondrej Balaz, 2015-10-07