** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1763301

Title:
  BUG: unable to handle kernel NULL pointer dereference at
  0000000000000000

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Afraid not much to add, this occurred after rebooting the laptop.

  ProblemType: KernelOops
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-13-generic 4.15.0-13.14
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  Annotation: Your system might become unstable now and might need to be 
restarted.
  ApportVersion: 2.20.9-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gdm        1156 F.... pulseaudio
                        calum      2981 F.... pulseaudio
  Date: Wed Apr 11 22:14:58 2018
  DuplicateSignature: BUG: unable to handle kernel NULL pointer dereference at 
location RIP: timecounter_read+0x10/0x60 RSP: ffffb2b88116be08
  Failure: oops
  InstallationDate: Installed on 2017-10-20 (173 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  MachineType: LENOVO 20JDCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-13-generic.efi.signed 
root=UUID=4f03289b-2cac-4bfb-bc59-47e041629a44 ro quiet splash 
resume=UUID=4f03289b-2cac-4bfb-bc59-47e041629a44 resume_offset=757760 
vt.handoff=1
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions: kerneloops-daemon N/A
  SourcePackage: linux
  Title: BUG: unable to handle kernel NULL pointer dereference at 
0000000000000000
  UpgradeStatus: Upgraded to bionic on 2018-04-11 (0 days ago)
  dmi.bios.date: 12/14/2017
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N1NET34W (1.21 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20JDCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40709 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 31
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrN1NET34W(1.21):bd12/14/2017:svnLENOVO:pn20JDCTO1WW:pvrThinkPadX1Yoga2nd:rvnLENOVO:rn20JDCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct31:cvrNone:
  dmi.product.family: ThinkPad X1 Yoga 2nd
  dmi.product.name: 20JDCTO1WW
  dmi.product.version: ThinkPad X1 Yoga 2nd
  dmi.sys.vendor: LENOVO

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