BUG: unable to handle kernel NULL pointer dereference at 0000000000000070

I was testing my Apple Magicpad when I encountered a series of kernel oopses. This is one of them.

ProblemType: KernelOops
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-14-generic 3.13.0-14.34
ProcVersionSignature: Ubuntu 3.13.0-14.34-generic 3.13.5
Uname: Linux 3.13.0-14-generic x86_64
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bdmurray 2541 F.... pulseaudio
Date: Mon Mar 3 16:29:16 2014
DuplicateSignature: BUG: unable to handle kernel NULL pointer dereference at location RIP: 0010:location location show_vfsmnt+0x2e/0x140
Failure: oops
HibernationDevice: RESUME=UUID=34048ba2-2259-4391-aadc-102323dca898
InstallationDate: Installed on 2010-11-17 (1202 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
Lsusb:
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 0831CTO
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-14-generic root=UUID=58a88244-4d22-41f7-bd3a-aaa049c553a6 ro initcall_debug usbcore.autosuspend=1 quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-3ubuntu4
SourcePackage: linux
Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
UpgradeStatus: Upgraded to trusty on 2014-01-05 (57 days ago)
dmi.bios.date: 09/15/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET53WW (1.23 )
dmi.board.name: 0831CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET53WW(1.23):bd09/15/2010:svnLENOVO:pn0831CTO:pvrThinkPadX201Tablet:rvnLENOVO:rn0831CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0831CTO
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO