syzbot


INFO: trying to register non-static key in vmk80xx_detach

Status: fixed on 2019/05/27 12:48
Subsystems: staging usb
[Documentation on labels]
Reported-by: syzbot+54c2f58f15fe6876b6ad@syzkaller.appspotmail.com
Fix commit: 08b7c2f9208f staging: comedi: vmk80xx: Fix use of uninitialized semaphore
First crash: 1835d, last: 1790d
Discussions (9)
Title Replies (including bot) Last reply
[PATCH 3.16 000/157] 3.16.72-rc1 review 162 (162) 2019/08/11 15:25
[PATCH 5.0 000/115] 5.0.10-stable review 124 (124) 2019/04/27 06:49
[PATCH 4.9 00/44] 4.9.171-stable review 50 (50) 2019/04/25 21:40
[PATCH 4.19 00/96] 4.19.37-stable review 102 (102) 2019/04/25 19:38
[PATCH 4.14 00/70] 4.14.114-stable review 76 (76) 2019/04/25 19:38
[PATCH 4.4 000/168] 4.4.179-stable review 178 (178) 2019/04/25 19:37
[PATCH 3.18 000/104] 3.18.139-stable review 112 (112) 2019/04/25 19:36
[PATCH 0/2] staging: comedi: vmk80xx: Fix a couple of bugs 4 (4) 2019/04/15 11:52
INFO: trying to register non-static key in vmk80xx_detach 0 (2) 2019/04/12 20:16

Sample crash report:
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=10cf, idProduct=8067, bcdDevice=55.87
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
vmk80xx 1-1:0.12: driver 'vmk80xx' failed to auto-configure device.
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xe8/0x16e lib/dump_stack.c:113
 assign_lock_key kernel/locking/lockdep.c:786 [inline]
 register_lock_class+0x11b8/0x1250 kernel/locking/lockdep.c:1095
 __lock_acquire+0xfb/0x37c0 kernel/locking/lockdep.c:3582
 lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x44/0x60 kernel/locking/spinlock.c:152
 down+0x12/0x80 kernel/locking/semaphore.c:58
 vmk80xx_detach+0x59/0x100 drivers/staging/comedi/drivers/vmk80xx.c:829
 comedi_device_detach+0xed/0x800 drivers/staging/comedi/drivers.c:204
 comedi_device_cleanup.part.0+0x68/0x140 drivers/staging/comedi/comedi_fops.c:156
 comedi_device_cleanup drivers/staging/comedi/comedi_fops.c:187 [inline]
 comedi_free_board_dev.part.0+0x16/0x90 drivers/staging/comedi/comedi_fops.c:190
 comedi_free_board_dev drivers/staging/comedi/comedi_fops.c:189 [inline]
 comedi_release_hardware_device+0x111/0x140 drivers/staging/comedi/comedi_fops.c:2880
 comedi_auto_config.cold+0x124/0x1b0 drivers/staging/comedi/drivers.c:1068
 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
 hub_port_connect drivers/usb/core/hub.c:5089 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
 port_event drivers/usb/core/hub.c:5350 [inline]
 hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
 kthread+0x313/0x420 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN PTI
CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:__list_add_valid+0x47/0xa0 lib/list_debug.c:26
Code: fa 48 c1 ea 03 80 3c 02 00 75 50 49 8b 54 24 08 48 39 f2 0f 85 59 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f2 48 c1 ea 03 <80> 3c 02 00 75 3a 48 8b 16 4c 39 e2 0f 85 5e 01 00 00 48 39 f5 0f
RSP: 0018:ffff8880a84b7110 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888096962550 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888096962598
RBP: ffff8880a84b7170 R08: ffff8880a84a6200 R09: ffffed1015096e31
R10: ffffed1015096e30 R11: 0000000000000003 R12: ffff888096962590
R13: 0000000000000000 R14: ffff888096962598 R15: ffff888096962590
FS:  0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f254fb75000 CR3: 000000009ab12000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_add include/linux/list.h:60 [inline]
 list_add_tail include/linux/list.h:93 [inline]
 __down_common kernel/locking/semaphore.c:210 [inline]
 __down+0xa7/0x2c0 kernel/locking/semaphore.c:238
 down+0x5c/0x80 kernel/locking/semaphore.c:62
 vmk80xx_detach+0x59/0x100 drivers/staging/comedi/drivers/vmk80xx.c:829
 comedi_device_detach+0xed/0x800 drivers/staging/comedi/drivers.c:204
 comedi_device_cleanup.part.0+0x68/0x140 drivers/staging/comedi/comedi_fops.c:156
 comedi_device_cleanup drivers/staging/comedi/comedi_fops.c:187 [inline]
 comedi_free_board_dev.part.0+0x16/0x90 drivers/staging/comedi/comedi_fops.c:190
 comedi_free_board_dev drivers/staging/comedi/comedi_fops.c:189 [inline]
 comedi_release_hardware_device+0x111/0x140 drivers/staging/comedi/comedi_fops.c:2880
 comedi_auto_config.cold+0x124/0x1b0 drivers/staging/comedi/drivers.c:1068
 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
 hub_port_connect drivers/usb/core/hub.c:5089 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
 port_event drivers/usb/core/hub.c:5350 [inline]
 hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
 kthread+0x313/0x420 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 6890c2017912b1c3 ]---
RIP: 0010:__list_add_valid+0x47/0xa0 lib/list_debug.c:26
Code: fa 48 c1 ea 03 80 3c 02 00 75 50 49 8b 54 24 08 48 39 f2 0f 85 59 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f2 48 c1 ea 03 <80> 3c 02 00 75 3a 48 8b 16 4c 39 e2 0f 85 5e 01 00 00 48 39 f5 0f
RSP: 0018:ffff8880a84b7110 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888096962550 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888096962598
RBP: ffff8880a84b7170 R08: ffff8880a84a6200 R09: ffffed1015096e31
R10: ffffed1015096e30 R11: 0000000000000003 R12: ffff888096962590
R13: 0000000000000000 R14: ffff888096962598 R15: ffff888096962590
FS:  0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f254fb75000 CR3: 000000009ab12000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1528):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/04/14 09:59 https://github.com/google/kasan.git usb-fuzzer 9a33b36996cb 505ab413 .config console log report syz C ci2-upstream-usb
2019/04/12 20:15 https://github.com/google/kasan.git usb-fuzzer 9a33b36996cb 4f421599 .config console log report syz C ci2-upstream-usb
2019/05/27 11:47 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 562efd79 .config console log report ci2-upstream-usb
2019/05/27 10:10 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 562efd79 .config console log report ci2-upstream-usb
2019/05/27 08:40 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/27 06:56 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/27 05:54 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/27 05:04 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/27 03:23 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/27 01:56 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/27 00:51 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 22:39 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 21:22 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 19:29 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 17:52 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 17:25 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 16:23 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 13:58 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 12:49 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 10:53 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 09:47 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 08:41 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 07:36 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 06:19 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 06:05 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 04:20 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 03:15 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 01:44 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/26 00:32 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 22:28 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 21:07 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 20:19 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 18:43 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 17:11 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 15:48 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 14:45 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 13:19 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 10:15 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 10:05 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 08:43 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 07:21 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 05:26 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 04:20 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 03:11 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 02:56 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/25 01:21 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/05/24 23:01 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config console log report ci2-upstream-usb
2019/04/12 14:07 https://github.com/google/kasan.git usb-fuzzer 9a33b36996cb 8916f5e1 .config console log report ci2-upstream-usb
* Struck through repros no longer work on HEAD.