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[pranith <1241726@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

[  232.420220] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[  232.420242] IP: [<ffffffffa0265a57>] rt2800pci_set_device_state+0xa7/0x4d0 [rt2800pci]
[  232.420255] PGD 3f1a70067 PUD 40401d067 PMD 0 
[  232.420264] Oops: 0000 [#1] SMP 
[  232.420271] Modules linked in: rt2800pci(-) rt2800lib rt2x00pci rt2x00mmio rt2x00lib mac80211 cfg80211 eeprom_93cx6 crc_ccitt(F) snd_hda_codec_hdmi parport_pc(F) ppdev(F) joydev(F) hid_generic rfcomm x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel(F) kvm(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) bnep snd_hda_codec_realtek arc4(F) microcode(F) psmouse(F) serio_raw(F) usbhid lpc_ich hid snd_hda_intel btusb snd_hda_codec bluetooth nouveau snd_hwdep(F) snd_pcm(F) snd_seq_midi(F) snd_seq_midi_event(F) mxm_wmi snd_page_alloc(F) snd_rawmidi(F) ttm snd_seq(F) mei_me drm_kms_helper snd_seq_device(F) snd_timer(F) mei snd(F) drm soundcore(F) i2c_algo_bit wmi mac_hid video(F) lp(F) parport(F) firewire_ohci firewire_core crc_itu_t(F) ahci(F) libahci(F) e1000e(F) ptp(F) pps_core(F) [last unloaded: cfg80211]
[  232.420439] CPU: 3 PID: 1434 Comm: wpa_supplicant Tainted: GF            3.11.0-12-generic #19-Ubuntu
[  232.420446] Hardware name:                  /DZ77GA-70K, BIOS GAZ7711H.86A.0059.2012.1106.1053 11/06/2012
[  232.420453] task: ffff8803ed8aaee0 ti: ffff8803f180c000 task.ti: ffff8803f180c000
[  232.420459] RIP: 0010:[<ffffffffa0265a57>]  [<ffffffffa0265a57>] rt2800pci_set_device_state+0xa7/0x4d0 [rt2800pci]
[  232.420470] RSP: 0018:ffff8803f180dc58  EFLAGS: 00010282
[  232.420475] RAX: 0000000000000000 RBX: ffff8803e37917a0 RCX: 0000000000000000
[  232.420481] RDX: ffffc90009d00000 RSI: 0000000000000000 RDI: 0000000000000246
[  232.420487] RBP: ffff8803f180dc70 R08: 000000000000000a R09: 0000000000001007
[  232.420493] R10: 0000000000000000 R11: ffff8803f180d826 R12: 0000000000000004
[  232.420498] R13: ffff88040350e000 R14: 0000000000000001 R15: 0000000000000000
[  232.420505] FS:  00007f32c3a01740(0000) GS:ffff88041ecc0000(0000) knlGS:0000000000000000
[  232.420511] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  232.420516] CR2: 0000000000000028 CR3: 00000003f4726000 CR4: 00000000001407e0
[  232.420522] Stack:
[  232.420526]  ffff8803e37917a0 ffff88040350e810 ffff88040350e000 ffff8803f180dc88
[  232.420537]  ffffffffa01c0f58 ffff8803e37917a0 ffff8803f180dca8 ffffffffa01c1a2a
[  232.420549]  00000000ed081249 ffff8803e3790600 ffff8803f180dcb8 ffffffffa01c1fe9
[  232.420560] Call Trace:
[  232.420569]  [<ffffffffa01c0f58>] rt2x00lib_enable_radio+0x38/0xc0 [rt2x00lib]
[  232.420578]  [<ffffffffa01c1a2a>] rt2x00lib_start+0x6a/0xc0 [rt2x00lib]
[  232.420589]  [<ffffffffa01c1fe9>] rt2x00mac_start+0x29/0x30 [rt2x00lib]
[  232.420608]  [<ffffffffa06a7eb1>] ieee80211_do_open+0x2f1/0xd80 [mac80211]
[  232.420619]  [<ffffffff816f0a7c>] ? notifier_call_chain+0x4c/0x70
[  232.420636]  [<ffffffffa06a89a9>] ieee80211_open+0x69/0x70 [mac80211]
[  232.420644]  [<ffffffff815f12df>] __dev_open+0xbf/0x140
[  232.420651]  [<ffffffff815f15a2>] __dev_change_flags+0x92/0x170
[  232.420658]  [<ffffffff815f172d>] dev_change_flags+0x1d/0x60
[  232.420667]  [<ffffffff81658fd3>] devinet_ioctl+0x693/0x790
[  232.420675]  [<ffffffff81659dad>] inet_ioctl+0x6d/0xa0
[  232.420682]  [<ffffffff815d4ea5>] sock_do_ioctl+0x25/0x50
[  232.420689]  [<ffffffff815d54e0>] sock_ioctl+0x1f0/0x2c0
[  232.420697]  [<ffffffff811b8ba5>] do_vfs_ioctl+0x2e5/0x4d0
[  232.420705]  [<ffffffff811a6b3e>] ? vfs_read+0x9e/0x170
[  232.420712]  [<ffffffff811b8e11>] SyS_ioctl+0x81/0xa0
[  232.420719]  [<ffffffff811a7669>] ? SyS_read+0x49/0xa0
[  232.420726]  [<ffffffff816f521d>] system_call_fastpath+0x1a/0x1f
[  232.420735] Code: 5b 41 5c 44 89 e8 41 5d 5d c3 66 2e 0f 1f 84 00 00 00 00 00 e8 6b ff 21 00 48 8b 83 20 09 00 00 48 8b 93 28 05 00 00 48 8b 40 08 <48> 8b 40 28 48 8b 40 08 89 82 30 02 00 00 48 8b 83 20 09 00 00 
[  232.420836] RIP  [<ffffffffa0265a57>] rt2800pci_set_device_state+0xa7/0x4d0 [rt2800pci]
[  232.420846]  RSP <ffff8803f180dc58>
[  232.420850] CR2: 0000000000000028
[  232.422454] ---[ end trace 9ec06440e58d38e4 ]---

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1241726

Title:
  [RT3090] modprobe -r rt2800pci crash in kernel

Status in “linux” package in Ubuntu:
  New

Bug description:
  [  232.420220] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
  [  232.420242] IP: [<ffffffffa0265a57>] rt2800pci_set_device_state+0xa7/0x4d0 [rt2800pci]
  [  232.420255] PGD 3f1a70067 PUD 40401d067 PMD 0 
  [  232.420264] Oops: 0000 [#1] SMP 
  [  232.420271] Modules linked in: rt2800pci(-) rt2800lib rt2x00pci rt2x00mmio rt2x00lib mac80211 cfg80211 eeprom_93cx6 crc_ccitt(F) snd_hda_codec_hdmi parport_pc(F) ppdev(F) joydev(F) hid_generic rfcomm x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel(F) kvm(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) bnep snd_hda_codec_realtek arc4(F) microcode(F) psmouse(F) serio_raw(F) usbhid lpc_ich hid snd_hda_intel btusb snd_hda_codec bluetooth nouveau snd_hwdep(F) snd_pcm(F) snd_seq_midi(F) snd_seq_midi_event(F) mxm_wmi snd_page_alloc(F) snd_rawmidi(F) ttm snd_seq(F) mei_me drm_kms_helper snd_seq_device(F) snd_timer(F) mei snd(F) drm soundcore(F) i2c_algo_bit wmi mac_hid video(F) lp(F) parport(F) firewire_ohci firewire_core crc_itu_t(F) ahci(F) libahci(F) e1000e(F) ptp(F) pps_core(F) [last unloaded: cfg80211]
  [  232.420439] CPU: 3 PID: 1434 Comm: wpa_supplicant Tainted: GF            3.11.0-12-generic #19-Ubuntu
  [  232.420446] Hardware name:                  /DZ77GA-70K, BIOS GAZ7711H.86A.0059.2012.1106.1053 11/06/2012
  [  232.420453] task: ffff8803ed8aaee0 ti: ffff8803f180c000 task.ti: ffff8803f180c000
  [  232.420459] RIP: 0010:[<ffffffffa0265a57>]  [<ffffffffa0265a57>] rt2800pci_set_device_state+0xa7/0x4d0 [rt2800pci]
  [  232.420470] RSP: 0018:ffff8803f180dc58  EFLAGS: 00010282
  [  232.420475] RAX: 0000000000000000 RBX: ffff8803e37917a0 RCX: 0000000000000000
  [  232.420481] RDX: ffffc90009d00000 RSI: 0000000000000000 RDI: 0000000000000246
  [  232.420487] RBP: ffff8803f180dc70 R08: 000000000000000a R09: 0000000000001007
  [  232.420493] R10: 0000000000000000 R11: ffff8803f180d826 R12: 0000000000000004
  [  232.420498] R13: ffff88040350e000 R14: 0000000000000001 R15: 0000000000000000
  [  232.420505] FS:  00007f32c3a01740(0000) GS:ffff88041ecc0000(0000) knlGS:0000000000000000
  [  232.420511] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [  232.420516] CR2: 0000000000000028 CR3: 00000003f4726000 CR4: 00000000001407e0
  [  232.420522] Stack:
  [  232.420526]  ffff8803e37917a0 ffff88040350e810 ffff88040350e000 ffff8803f180dc88
  [  232.420537]  ffffffffa01c0f58 ffff8803e37917a0 ffff8803f180dca8 ffffffffa01c1a2a
  [  232.420549]  00000000ed081249 ffff8803e3790600 ffff8803f180dcb8 ffffffffa01c1fe9
  [  232.420560] Call Trace:
  [  232.420569]  [<ffffffffa01c0f58>] rt2x00lib_enable_radio+0x38/0xc0 [rt2x00lib]
  [  232.420578]  [<ffffffffa01c1a2a>] rt2x00lib_start+0x6a/0xc0 [rt2x00lib]
  [  232.420589]  [<ffffffffa01c1fe9>] rt2x00mac_start+0x29/0x30 [rt2x00lib]
  [  232.420608]  [<ffffffffa06a7eb1>] ieee80211_do_open+0x2f1/0xd80 [mac80211]
  [  232.420619]  [<ffffffff816f0a7c>] ? notifier_call_chain+0x4c/0x70
  [  232.420636]  [<ffffffffa06a89a9>] ieee80211_open+0x69/0x70 [mac80211]
  [  232.420644]  [<ffffffff815f12df>] __dev_open+0xbf/0x140
  [  232.420651]  [<ffffffff815f15a2>] __dev_change_flags+0x92/0x170
  [  232.420658]  [<ffffffff815f172d>] dev_change_flags+0x1d/0x60
  [  232.420667]  [<ffffffff81658fd3>] devinet_ioctl+0x693/0x790
  [  232.420675]  [<ffffffff81659dad>] inet_ioctl+0x6d/0xa0
  [  232.420682]  [<ffffffff815d4ea5>] sock_do_ioctl+0x25/0x50
  [  232.420689]  [<ffffffff815d54e0>] sock_ioctl+0x1f0/0x2c0
  [  232.420697]  [<ffffffff811b8ba5>] do_vfs_ioctl+0x2e5/0x4d0
  [  232.420705]  [<ffffffff811a6b3e>] ? vfs_read+0x9e/0x170
  [  232.420712]  [<ffffffff811b8e11>] SyS_ioctl+0x81/0xa0
  [  232.420719]  [<ffffffff811a7669>] ? SyS_read+0x49/0xa0
  [  232.420726]  [<ffffffff816f521d>] system_call_fastpath+0x1a/0x1f
  [  232.420735] Code: 5b 41 5c 44 89 e8 41 5d 5d c3 66 2e 0f 1f 84 00 00 00 00 00 e8 6b ff 21 00 48 8b 83 20 09 00 00 48 8b 93 28 05 00 00 48 8b 40 08 <48> 8b 40 28 48 8b 40 08 89 82 30 02 00 00 48 8b 83 20 09 00 00 
  [  232.420836] RIP  [<ffffffffa0265a57>] rt2800pci_set_device_state+0xa7/0x4d0 [rt2800pci]
  [  232.420846]  RSP <ffff8803f180dc58>
  [  232.420850] CR2: 0000000000000028
  [  232.422454] ---[ end trace 9ec06440e58d38e4 ]---

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