[  196.957601] vboxdrv: Found 4 processor cores.
[  196.957759] BUG: unable to handle kernel NULL pointer dereference at 00000700
[  196.957894] IP: [<fa85faea>] VBoxHost_RTR0MemObjFree+0x294/0x294 [vboxdrv]
[  196.958060] *pde = 00000000
[  196.958112] Oops: 0000 [#1] SMP
[  196.958162] Modules linked in: vboxdrv(O+) cbc ecb i915 i2c_algo_bit drm_kms_helper drm cpufreq_userspace cpufreq_powersave cpufreq_conservative cpufreq_stats parport_pc ppdev lp parport binfmt_misc fuse dib7000p dibx000_common dvb_core loop ecryptfs dm_crypt dm_mod uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core snd_hda_codec_hdmi snd_hda_codec_conexant videodev snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm thinkpad_acpi joydev coretemp snd_page_alloc nvram snd_seq_midi snd_seq_midi_event btusb bluetooth snd_rawmidi snd_seq arc4 kvm snd_seq_device snd_timer iwlwifi mac80211 tpm_tis i2c_i801 psmouse snd serio_raw cfg80211 soundcore microcode tpm acpi_cpufreq i2c_core mperf battery pcspkr mxm_wmi ac processor evdev rfkill wmi video tpm_bios button crc32c_intel aesni_intel aes_i586 aes_generic cryptd sd_mod crc_t10dif sr_mod cdrom sdhci_pci sdhci mmc_core thermal thermal_sys firewire_ohci ehci_hcd firewire_core crc_itu_t usbcore usb_common e1000e [last unloaded: scsi_wait_scan]
[  196.959629]
[  196.959652] Pid: 6321, comm: modprobe Tainted: G           O 3.5.3-20120901 #1 LENOVO 4349WJK/4349WJK
[  196.959770] EIP: 0060:[<fa85faea>] EFLAGS: 00210293 CPU: 2
[  196.959867] EIP is at VBoxHost_RTR0MemObjGetPagePhysAddr+0x0/0x67 [vboxdrv]
[  196.959947] EAX: f411e000 EBX: f411e000 ECX: c1472180 EDX: 00000002
[  196.960020] ESI: fa878878 EDI: 00000700 EBP: 00000000 ESP: f20c3e98
[  196.960092]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  196.960155] CR0: 8005003b CR2: 00000700 CR3: 340e5000 CR4: 000007d0
[  196.960228] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[  196.960299] DR6: ffff0ff0 DR7: 00000400
[  196.960346] Process modprobe (pid: 6321, ti=f20c2000 task=f4252080 task.ti=f20c2000)
[  196.960433] Stack:
[  196.960459]  fa85b08f f40817f0 00000000 f40817f0 f413ea00 c10b9109 00000020 000000d0
[  196.960578]  000000d0 00000018 fa86050f 00000000 00000008 f20c3ef0 00000018 fa86050f
[  196.960698]  00000004 00000000 fa878708 f4d7a280 fa882000 fa85ecb7 f413ea00 fa85ecea
[  196.960817] Call Trace:
[  196.960881]  [<fa85b08f>] ? supdrvInitDevExt+0xdd/0x72d [vboxdrv]
[  196.960959]  [<c10b9109>] ? __kmalloc+0xd7/0xe3
[  196.961045]  [<fa86050f>] ? rtR0MemAllocEx+0x4a/0x9d [vboxdrv]
[  196.961146]  [<fa86050f>] ? rtR0MemAllocEx+0x4a/0x9d [vboxdrv]
[  196.961221]  [<fa882000>] ? 0xfa881fff
[  196.961299]  [<fa85ecb7>] ? rtR0MemAlloc+0x8/0x15 [vboxdrv]
[  196.961395]  [<fa85ecea>] ? VBoxHost_RTMemAllocTag+0xb/0x18 [vboxdrv]
[  196.961501]  [<fa8628d1>] ? VBoxHost_RTSpinlockCreate+0xc/0x2f [vboxdrv]
[  196.961582]  [<fa882000>] ? 0xfa881fff
[  196.961652]  [<fa882050>] ? VBoxDrvLinuxInit+0x50/0xc7 [vboxdrv]
[  196.961724]  [<c1001154>] ? do_one_initcall+0x66/0x10e
[  196.961789]  [<c105f434>] ? sys_init_module+0x12fb/0x1514
[  196.961869]  [<c13132df>] ? sysenter_do_call+0x12/0x28
[  196.961929] Code: fe ff ff e9 cf fe ff ff 8b 4a 1c 85 c9 0f 84 47 ff ff ff 8d 34 8d fc ff ff ff 89 4c 24 04 e9 5c ff ff ff 83 c4 08 5b 5e 5f 5d c3 <8b> 0f 8b 47 04 8d 91 00 10 00 00 81 fa ff 1f 00 00 76 45 81 39
[  196.962390] EIP: [<fa85faea>] VBoxHost_RTR0MemObjGetPagePhysAddr+0x0/0x67 [vboxdrv] SS:ESP 0068:f20c3e98
[  196.962550] CR2: 0000000000000700
[  196.989674] ---[ end trace e017bc0fa4cb733c ]---