BUG: unable to handle kernel NULL pointer dereference at 00000020
IP: [<f995d28b>] rtl92ce_rx_query_desc+0x1de/0x783 [rtl8192ce]
*pde = 63fe9067 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map
Modules linked in: aes_i586 aes_generic fuse tun cpufreq_ondemand powernow_k8 mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipv6 uinput arc4 ecb snd_hda_codec_conexant rtl8192ce snd_hda_codec_hdmi rtl8192c_common snd_hda_intel rtlwifi snd_hda_codec mac80211 snd_hwdep snd_seq snd_seq_device uvcvideo snd_pcm videodev microcode cfg80211 k10temp pcspkr joydev serio_raw snd_timer snd video rfkill r8169 soundcore i2c_piix4 snd_page_alloc mii usb_storage radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core [last unloaded: scsi_wait_scan]
Pid: 0, comm: swapper Not tainted 2.6.39-rc5 #1 LENOVO 05962PU/05962PU
EIP: 0060:[<f995d28b>] EFLAGS: 00010202 CPU: 0
EIP is at rtl92ce_rx_query_desc+0x1de/0x783 [rtl8192ce]
EAX: 00000000 EBX: f2c6f5c0 ECX: f2c510e0 EDX: 00000000
ESI: f4c23f14 EDI: 00000020 EBP: f4c23ec0 ESP: f4c23e94
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process swapper (pid: 0, ti=f4c22000 task=c0a0ffe0 task.ti=c09c2000)
Stack:
 00000281 00000000 00000000 00000000 f5806a80 f2c502e0 00000000 f4c23f68
 f995fb7c f2c510e0 f4c23f68 f4c23fa0 f97e0cf8 f2c6f5c0 f1ea5c00 000001f0
 f5806a90 000100d8 f4c23f68 f2c5314c ffffffff f5806a80 0000797c 00000000
Call Trace:
 [<f97e0cf8>] _rtl_pci_rx_interrupt+0x106/0x4e8 [rtlwifi]
 [<f97e10e7>] _rtl_pci_irq_tasklet+0xd/0x12 [rtlwifi]
 [<c0441f09>] tasklet_action+0x6a/0xae
 [<c04421ab>] __do_softirq+0xa5/0x160
 [<c0442106>] ? local_bh_enable+0xf/0xf