Xorg crashed with SIGABRT in GetBarrierDevice() from barrier_find_nearest() from input_constrain_cursor()

https://errors.ubuntu.com/problem/8eb04b107d22b16cb91cf5c1e44be8e049ff2239

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X crashed upon attemping to reattach my mouse to a newly created master pointer.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: xserver-xorg-core 2:1.16.0-1ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-18.25-generic 3.16.3
Uname: Linux 3.16.0-18-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.7-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CrashCounter: 1
Date: Sat Sep 27 21:24:25 2014
DistUpgraded: 2014-09-26 18:02:27,952 DEBUG enabling apt cron job
DistroCodename: utopic
DistroVariant: ubuntu
DkmsStatus: i915-3.15-3.13, 0.01, 3.13.0-36-generic, x86_64: installed
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0569]
InstallationDate: Installed on 2014-08-13 (45 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Dell Inc. Inspiron 5520
ProcCmdline: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-18-generic root=UUID=d1b11c59-9f5b-4214-ba1e-437baa2467e3 ro quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 ?? ()
 ?? ()
 miPointerSetPosition ()
 ?? ()
 ?? ()
Title: Xorg crashed with SIGABRT in miPointerSetPosition()
UpgradeStatus: Upgraded to utopic on 2014-09-26 (1 days ago)
UserGroups:

dmi.bios.date: 05/13/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.name: 04G65K
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A14
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd05/13/2013:svnDellInc.:pnInspiron5520:pvrA14:rvnDellInc.:rn04G65K:rvrA00:cvnDellInc.:ct8:cvrA14:
dmi.product.name: Inspiron 5520
dmi.product.version: A14
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.6-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.6-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Sat Sep 27 21:24:30 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 5546
 vendor CMN
xserver.version: 2:1.16.0-1ubuntu1