BUG: unable to handle kernel NULL pointer dereference at 00000040
IP: [<c047f780>] apparmor_bprm_set_creds+0x370/0x400
*pde = 00000000 
Oops: 0000 [#3] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2/1-2:1.0/host2/target2:0:0/2:0:0:0/block/sdc/sdc1/stat
Modules linked in: binfmt_misc ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss fbcon tileblit font snd_seq_midi bitblit arc4 softcursor ecb snd_rawmidi snd_seq_midi_event ath5k iptable_filter i915 snd_seq mac80211 joydev ip_tables drm snd_timer led_class uvcvideo ath snd_seq_device x_tables videodev i2c_algo_bit snd psmouse soundcore v4l1_compat lp video serio_raw cfg80211 snd_page_alloc atl2 intel_agp output parport eeepc_laptop agpgart usbhid dm_raid45 usb_storage xor

Pid: 15950, comm: hamachi Tainted: G      D    (2.6.31-11-generic #38-Ubuntu) 701
EIP: 0060:[<c047f780>] EFLAGS: 00010246 CPU: 0
EIP is at apparmor_bprm_set_creds+0x370/0x400
EAX: fffffffe EBX: d76bf200 ECX: d770df00 EDX: ddcccfe2
ESI: 00000000 EDI: d753e400 EBP: d770df44 ESP: d770deb4
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process hamachi (pid: 15950, ti=d770c000 task=ddf90c90 task.ti=d770c000)
Stack:
 d770df00 00000000 00000000 d770ded0 c01c9f00 de142210 df001080 d770deec
<0> c01c9f4f 00000000 00000000 de142210 00000000 de142210 00000000 000000d0
<0> fffffffe c0700382 00000000 ddcccfe2 00000000 00000000 00000000 00000000
Call Trace:
 [<c01c9f00>] ? __vma_link_rb+0x30/0x40
 [<c01c9f4f>] ? __vma_link+0x3f/0x80
 [<c02c2eac>] ? security_bprm_set_creds+0xc/0x10
 [<c01e8441>] ? prepare_binprm+0xa1/0xf0
 [<c01e8a2b>] ? T.626+0x3b/0x50
 [<c01e919e>] ? do_execve+0x17e/0x2c0
 [<c03142a5>] ? strncpy_from_user+0x35/0x60
 [<c0101a28>] ? sys_execve+0x28/0x60
 [<c010334c>] ? syscall_call+0x7/0xb
Code: 24 8b 44 24 18 e8 71 f4 ff ff 3d 00 f0 ff ff 89 c1 76 a7 0f b7 44 24 60 f6 c4 40 74 50 c7 44 24 48 87 03 70 c0 e9 98 fe ff ff 90 <f6> 46 40 08 0f 84 e6 fe ff ff e9 d9 fe ff ff 90 8b 54 24 4c 8b 
EIP: [<c047f780>] apparmor_bprm_set_creds+0x370/0x400 SS:ESP 0068:d770deb4
CR2: 0000000000000040
---[ end trace c17f22a03a2abb09 ]---