VBoxHeadless crashed with SIGSEGV

The crash most likely occured while it was running one of the virtual machines in the BOINC project LHC@home, Test4Theory sub-project which uses virtual machines running in the headless VirtualBox client.

May be related to the many other SIGSEGVs reported for VirtualBox (will check the dump log and see if this is an obvious dup)

Ubuntu version:
Description: Ubuntu 12.04.3 LTS
Release: 12.04

Package: virtualbox
Package-Version: 4.1.12-dfsg-2ubuntu0.2

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: virtualbox 4.1.12-dfsg-2ubuntu0.2
ProcVersionSignature: Ubuntu 3.2.0-54.82-generic 3.2.50
Uname: Linux 3.2.0-54-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.5
Architecture: amd64
CrashCounter: 1
Date: Wed Oct 16 16:45:06 2013
ExecutablePath: /usr/lib/virtualbox/VBoxHeadless
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
ProcCmdline: /usr/lib/virtualbox/VBoxHeadless --comment boinc_wu_1378991704_35572_0 --startvm 65456ff1-cde3-478b-86a8-ddada2c26bce --vrde config
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f7484bb0cb1: mov (%rax),%rax
 PC (0x7f7484bb0cb1) ok
 source "(%rax)" (0xffffffffffffffff) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: virtualbox
StacktraceTop:
 ?? () from /usr/lib/virtualbox/VBoxDD.so
 ?? () from /usr/lib/virtualbox/VBoxDD.so
 ?? () from /usr/lib/virtualbox/VBoxDD.so
 ?? () from /usr/lib/virtualbox/VBoxVMM.so
 ?? () from /usr/lib/virtualbox/VBoxRT.so
Title: VBoxHeadless crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: video