INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 PID: 8467 Comm: kworker/1:3 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 assign_lock_key kernel/locking/lockdep.c:937 [inline]
 register_lock_class+0x1077/0x1180 kernel/locking/lockdep.c:1249
 __lock_acquire+0x102/0x5230 kernel/locking/lockdep.c:4781
 lock_acquire kernel/locking/lockdep.c:5512 [inline]
 lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5477
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
 skb_queue_tail+0x21/0x140 net/core/skbuff.c:3241
 ath9k_htc_txep+0x287/0x400 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:712
 ath9k_htc_txcompletion_cb+0x1cd/0x2f0 drivers/net/wireless/ath/ath9k/htc_hst.c:348
 hif_usb_regout_cb+0x115/0x1c0 drivers/net/wireless/ath/ath9k/hif_usb.c:90
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726
 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1978
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1431
 expire_timers kernel/time/timer.c:1476 [inline]
 __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1745
 __run_timers kernel/time/timer.c:1726 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1758
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197
Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 39 13 8d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc9000177f5c8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801c773880 RSI: ffffffff815cb113 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff902268a7
R10: ffffffff815cb109 R11: 0000000000000000 R12: ffffffff84bbfa00
R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc9000177f628
 console_unlock+0x7c9/0xc40 kernel/printk/printk.c:2653
 vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2174
 dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4521
 dev_printk_emit+0xba/0xf1 drivers/base/core.c:4532
 __dev_printk+0xcf/0xf5 drivers/base/core.c:4544
 _dev_info+0xd7/0x109 drivers/base/core.c:4590
 usb_disconnect.cold+0x25/0x791 drivers/usb/core/hub.c:2201
 hub_port_connect drivers/usb/core/hub.c:5127 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5416 [inline]
 port_event drivers/usb/core/hub.c:5562 [inline]
 hub_event+0x1c9c/0x4330 drivers/usb/core/hub.c:5644
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2276
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2422
 kthread+0x3b1/0x4a0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 8467 Comm: kworker/1:3 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:__skb_insert include/linux/skbuff.h:1932 [inline]
RIP: 0010:__skb_queue_before include/linux/skbuff.h:2038 [inline]
RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2071 [inline]
RIP: 0010:skb_queue_tail+0x9a/0x140 net/core/skbuff.c:3242
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 7b 4c 89 e2 4c 89 65 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 48 89 6b 08 <80> 3c 02 00 75 4a 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc90000dc09d8 EFLAGS: 00010056
RAX: dffffc0000000000 RBX: ffff88802f24b670 RCX: ffffffff815af4d0
RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff8880285a5148
RBP: ffff8880285a5140 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520001b8129 R11: 0000000000084087 R12: 0000000000000000
R13: ffff88802f24b688 R14: 00000000ffffa1b8 R15: ffffffff84ff16b0
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055928c678447 CR3: 0000000021023000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 ath9k_htc_txep+0x287/0x400 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:712
 ath9k_htc_txcompletion_cb+0x1cd/0x2f0 drivers/net/wireless/ath/ath9k/htc_hst.c:348
 hif_usb_regout_cb+0x115/0x1c0 drivers/net/wireless/ath/ath9k/hif_usb.c:90
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726
 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1978
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1431
 expire_timers kernel/time/timer.c:1476 [inline]
 __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1745
 __run_timers kernel/time/timer.c:1726 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1758
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197
Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 39 13 8d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc9000177f5c8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801c773880 RSI: ffffffff815cb113 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff902268a7
R10: ffffffff815cb109 R11: 0000000000000000 R12: ffffffff84bbfa00
R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc9000177f628
 console_unlock+0x7c9/0xc40 kernel/printk/printk.c:2653
 vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2174
 dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4521
 dev_printk_emit+0xba/0xf1 drivers/base/core.c:4532
 __dev_printk+0xcf/0xf5 drivers/base/core.c:4544
 _dev_info+0xd7/0x109 drivers/base/core.c:4590
 usb_disconnect.cold+0x25/0x791 drivers/usb/core/hub.c:2201
 hub_port_connect drivers/usb/core/hub.c:5127 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5416 [inline]
 port_event drivers/usb/core/hub.c:5562 [inline]
 hub_event+0x1c9c/0x4330 drivers/usb/core/hub.c:5644
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2276
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2422
 kthread+0x3b1/0x4a0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace 055a7ed0817bb73c ]---
RIP: 0010:__skb_insert include/linux/skbuff.h:1932 [inline]
RIP: 0010:__skb_queue_before include/linux/skbuff.h:2038 [inline]
RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2071 [inline]
RIP: 0010:skb_queue_tail+0x9a/0x140 net/core/skbuff.c:3242
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 7b 4c 89 e2 4c 89 65 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 48 89 6b 08 <80> 3c 02 00 75 4a 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc90000dc09d8 EFLAGS: 00010056
RAX: dffffc0000000000 RBX: ffff88802f24b670 RCX: ffffffff815af4d0
RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff8880285a5148
RBP: ffff8880285a5140 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520001b8129 R11: 0000000000084087 R12: 0000000000000000
R13: ffff88802f24b688 R14: 00000000ffffa1b8 R15: ffffffff84ff16b0
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055928c678447 CR3: 0000000021023000 CR4: 0000000000350ee0