BUG: unable to handle kernel NULL pointer dereference at 00000040
IP: [<c0484430>] apparmor_bprm_set_creds+0x370/0x400
*pde = 00000000 
Oops: 0000 [#3] SMP 
last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
Modules linked in: nls_iso8859_1 nls_cp437 vfat fat binfmt_misc kvm_amd kvm usblp snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_ac97_codec ac97_bus arc4 snd_pcm_oss snd_mixer_oss snd_pcm ecb snd_page_alloc snd_util_mem snd_hwdep snd_seq_dummy dvb_pll snd_seq_oss snd_seq_midi dib3000mb snd_rawmidi snd_seq_midi_event snd_seq dvb_usb_dibusb_mb iptable_filter zd1211rw snd_timer dvb_usb_dibusb_common dib3000mc snd_seq_device gspca_pac207 mac80211 dibx000_common ip_tables gspca_main snd x_tables i2c_viapro ppdev dvb_usb videodev psmouse k8temp cfg80211 soundcore shpchp dvb_core v4l1_compat asus_atk0110 serio_raw parport_pc lp parport dm_raid45 xor radeon ttm drm 8139too 8139cp usbhid usb_storage floppy mii i2c_algo_bit sata_via amd64_agp agpgart ramzswap xvmalloc lzo_decompress lzo_compress

Pid: 15872, comm: hamachi Tainted: G      D    (2.6.31-14-generic #48-Ubuntu) System Product Name
EIP: 0060:[<c0484430>] EFLAGS: 00010246 CPU: 1
EIP is at apparmor_bprm_set_creds+0x370/0x400
EAX: fffffffe EBX: f6443000 ECX: f6b8ff00 EDX: f64431e2
ESI: 00000000 EDI: f6b05220 EBP: f6b8ff44 ESP: f6b8feb4
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process hamachi (pid: 15872, ti=f6b8e000 task=f39e3ed0 task.ti=f6b8e000)
Stack:
 f6b8ff00 00000000 00000000 f6b8fed0 c01ce8b0 f3a2b4d0 f7004040 f6b8feec
<0> c01ce8ff 00000000 00000000 f3a2b4d0 00000000 f3a2b4d0 00000000 000000d0
<0> fffffffe c070715a 00000000 f64431e2 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:f6b8feb4
CR2: 0000000000000040
---[ end trace 3705b5df625580af ]---