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: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.13.0-rc4-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+0x202/0x31e lib/dump_stack.c:120
 register_lock_class+0xedb/0x1490 kernel/locking/lockdep.c:936
 __lock_acquire+0x186/0x6040 kernel/locking/lockdep.c:4781
 lock_acquire+0x17f/0x720 kernel/locking/lockdep.c:5512
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xb3/0x100 kernel/locking/spinlock.c:159
 skb_queue_tail+0x32/0x120 net/core/skbuff.c:3241
 hif_usb_regout_cb+0x128/0x160 drivers/net/wireless/ath/ath9k/hif_usb.c:90
 __usb_hcd_giveback_urb+0x375/0x520 drivers/usb/core/hcd.c:1656
 dummy_timer+0x808/0x3100 drivers/usb/gadget/udc/dummy_hcd.c:1978
 call_timer_fn+0xf6/0x210 kernel/time/timer.c:1431
 expire_timers kernel/time/timer.c:1476 [inline]
 __run_timers+0x6ff/0x910 kernel/time/timer.c:1745
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1758
 __do_softirq+0x372/0x7a6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x245/0x280 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:console_unlock+0xb2b/0xec0 kernel/printk/printk.c:2653
Code: 75 1d e8 28 b9 19 00 f6 44 24 0f 01 75 1e e8 1c b9 19 00 e9 54 f7 ff ff 0f 1f 80 00 00 00 00 e8 0b b9 19 00 fb f6 44 24 0f 01 <74> e2 e8 fe b8 19 00 48 c7 c7 78 ef f5 8b be 5e 0a 00 00 31 d2 e8
RSP: 0018:ffffc90000ca6f40 EFLAGS: 00000246
RAX: ffffffff816551e5 RBX: ffffc90000ca7100 RCX: ffff888012b48000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ca7190 R08: ffffffff816551a4 R09: fffffbfff204dbb1
R10: fffffbfff204dbb1 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffffffff1af5251 R14: 1ffffffff1af524a R15: ffffffff8d7a9288
 vprintk_emit+0x21a/0x2f0 kernel/printk/printk.c:2174
 dev_vprintk_emit+0x2e1/0x355 drivers/base/core.c:4525
 dev_printk_emit+0xca/0x109 drivers/base/core.c:4536
 _dev_info+0x110/0x158 drivers/base/core.c:4594
 usb_disconnect+0xde/0x8a0 drivers/usb/core/hub.c:2201
 hub_port_connect+0x297/0x27a0 drivers/usb/core/hub.c:5127
 hub_port_connect_change+0x5d0/0xbf0 drivers/usb/core/hub.c:5416
 port_event+0xaee/0x1140 drivers/usb/core/hub.c:5562
 hub_event+0x48d/0xd90 drivers/usb/core/hub.c:5644
 process_one_work+0x833/0x10c0 kernel/workqueue.c:2276
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2422
 kthread+0x39a/0x3c0 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: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.13.0-rc4-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+0xb8/0x120 net/core/skbuff.c:3242
Code: 16 ed f9 4d 89 2f 49 bf 00 00 00 00 00 fc ff df 42 80 7c 3d 00 00 74 08 4c 89 f7 e8 d2 16 ed f9 49 89 1e 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 ef e8 b9 16 ed f9 49 89 5d 00 49 83 c4
RSP: 0018:ffffc900000077e8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880192763c0 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc900000076c0
RBP: 1ffff110046076cf R08: dffffc0000000000 R09: 0000000000000003
R10: fffff52000000ed9 R11: 0000000000000004 R12: ffff88802303b670
R13: 0000000000000000 R14: ffff88802303b678 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005607ae1a3b80 CR3: 000000000cc8e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 hif_usb_regout_cb+0x128/0x160 drivers/net/wireless/ath/ath9k/hif_usb.c:90
 __usb_hcd_giveback_urb+0x375/0x520 drivers/usb/core/hcd.c:1656
 dummy_timer+0x808/0x3100 drivers/usb/gadget/udc/dummy_hcd.c:1978
 call_timer_fn+0xf6/0x210 kernel/time/timer.c:1431
 expire_timers kernel/time/timer.c:1476 [inline]
 __run_timers+0x6ff/0x910 kernel/time/timer.c:1745
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1758
 __do_softirq+0x372/0x7a6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x245/0x280 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:console_unlock+0xb2b/0xec0 kernel/printk/printk.c:2653
Code: 75 1d e8 28 b9 19 00 f6 44 24 0f 01 75 1e e8 1c b9 19 00 e9 54 f7 ff ff 0f 1f 80 00 00 00 00 e8 0b b9 19 00 fb f6 44 24 0f 01 <74> e2 e8 fe b8 19 00 48 c7 c7 78 ef f5 8b be 5e 0a 00 00 31 d2 e8
RSP: 0018:ffffc90000ca6f40 EFLAGS: 00000246
RAX: ffffffff816551e5 RBX: ffffc90000ca7100 RCX: ffff888012b48000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ca7190 R08: ffffffff816551a4 R09: fffffbfff204dbb1
R10: fffffbfff204dbb1 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffffffff1af5251 R14: 1ffffffff1af524a R15: ffffffff8d7a9288
 vprintk_emit+0x21a/0x2f0 kernel/printk/printk.c:2174
 dev_vprintk_emit+0x2e1/0x355 drivers/base/core.c:4525
 dev_printk_emit+0xca/0x109 drivers/base/core.c:4536
 _dev_info+0x110/0x158 drivers/base/core.c:4594
 usb_disconnect+0xde/0x8a0 drivers/usb/core/hub.c:2201
 hub_port_connect+0x297/0x27a0 drivers/usb/core/hub.c:5127
 hub_port_connect_change+0x5d0/0xbf0 drivers/usb/core/hub.c:5416
 port_event+0xaee/0x1140 drivers/usb/core/hub.c:5562
 hub_event+0x48d/0xd90 drivers/usb/core/hub.c:5644
 process_one_work+0x833/0x10c0 kernel/workqueue.c:2276
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2422
 kthread+0x39a/0x3c0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace 4df9347889f1b67c ]---
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+0xb8/0x120 net/core/skbuff.c:3242
Code: 16 ed f9 4d 89 2f 49 bf 00 00 00 00 00 fc ff df 42 80 7c 3d 00 00 74 08 4c 89 f7 e8 d2 16 ed f9 49 89 1e 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 ef e8 b9 16 ed f9 49 89 5d 00 49 83 c4
RSP: 0018:ffffc900000077e8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880192763c0 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc900000076c0
RBP: 1ffff110046076cf R08: dffffc0000000000 R09: 0000000000000003
R10: fffff52000000ed9 R11: 0000000000000004 R12: ffff88802303b670
R13: 0000000000000000 R14: ffff88802303b678 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005607ae1a3b80 CR3: 000000000cc8e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400