BUG: unable to handle kernel NULL pointer dereference at 00000040
IP: [<c0484430>] apparmor_bprm_set_creds+0x370/0x400
*pde = 00000000 
Oops: 0000 [#4] SMP 
last sysfs file: /sys/devices/virtual/block/ram9/uevent
Modules linked in: aes_i586 aes_generic binfmt_misc ppdev bridge snd_hda_codec_atihdmi stp bnep snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb snd_seq_midi snd_rawmidi snd_seq_midi_event iwlagn snd_seq snd_timer iwlcore joydev snd_seq_device mac80211 iptable_filter ip_tables snd sony_laptop soundcore snd_page_alloc x_tables cfg80211 uvcvideo sdhci_pci sdhci videodev v4l1_compat led_class psmouse lp btusb serio_raw parport usbhid ohci1394 sky2 ieee1394 video output radeon ttm drm i2c_algo_bit intel_agp agpgart

Pid: 13000, comm: binary Tainted: G      D    (2.6.31-14-generic #48-Ubuntu) VGN-FW41J_H
EIP: 0060:[<c0484430>] EFLAGS: 00210246 CPU: 1
EIP is at apparmor_bprm_set_creds+0x370/0x400
EAX: fffffffe EBX: e0422200 ECX: f2539f00 EDX: f5c66be2
ESI: 00000000 EDI: f6204e60 EBP: f2539f44 ESP: f2539eb4
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process binary (pid: 13000, ti=f2538000 task=f5ff0000 task.ti=f2538000)
Stack:
 f2539f00 00000000 00000000 f2539ed0 c01ce8b0 f4cbc580 f70010c0 f2539eec
<0> c01ce8ff 00000000 00000000 f4cbc580 00000000 f4cbc580 00000000 000000d0
<0> fffffffe c070715a 00000000 f5c66be2 00000000 00000000 00000000 00000000
Call Trace:
 [<c01ce8b0>] ? __vma_link_rb+0x30/0x40
 [<c01ce8ff>] ? __vma_link+0x3f/0x80
 [<c02c783c>] ? security_bprm_set_creds+0xc/0x10
 [<c01ecdd1>] ? prepare_binprm+0xa1/0xf0
 [<c01ed3bb>] ? T.626+0x3b/0x50
 [<c01edb2e>] ? do_execve+0x17e/0x2c0
 [<c0318c45>] ? strncpy_from_user+0x35/0x60
 [<c0101a28>] ? sys_execve+0x28/0x60
 [<c010336c>] ? 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 5f 71 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: [<c0484430>] apparmor_bprm_set_creds+0x370/0x400 SS:ESP 0068:f2539eb4
CR2: 0000000000000040
---[ end trace 246802a80c22b012 ]---