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: 14 Comm: kworker/0:1 Not tainted 5.18.0-rc3-syzkaller-00007-g559089e0a93d #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:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 assign_lock_key kernel/locking/lockdep.c:949 [inline]
 register_lock_class+0xf04/0x11b0 kernel/locking/lockdep.c:1262
 __lock_acquire+0x10a/0x56c0 kernel/locking/lockdep.c:4908
 lock_acquire kernel/locking/lockdep.c:5641 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
 skb_queue_tail+0x21/0x140 net/core/skbuff.c:3373
 ath9k_htc_txep+0x287/0x400 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:712
 ath9k_htc_txcompletion_cb+0x1cd/0x2e0 drivers/net/wireless/ath/ath9k/htc_hst.c:353
 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:1670
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1747
 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1737
 __run_timers kernel/time/timer.c:1715 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1750
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 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:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0xde/0x180 mm/kasan/generic.c:189
Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c
RSP: 0018:ffffc90000f4f710 EFLAGS: 00000246
RAX: ffffed100ebc78f0 RBX: ffffed100ebc78f1 RCX: ffffffff81fda003
RDX: ffffed100ebc78f1 RSI: 0000000000000004 RDI: ffff888075e3c784
RBP: ffffed100ebc78f0 R08: 0000000000000000 R09: ffff888075e3c787
R10: ffffed100ebc78f0 R11: 0000000000000001 R12: ffff888075e3c784
R13: 0000000000000100 R14: dffffc0000000000 R15: ffff888140091400
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
 kernfs_drain fs/kernfs/dir.c:471 [inline]
 __kernfs_remove+0x8f3/0xb20 fs/kernfs/dir.c:1376
 kernfs_remove_by_name_ns+0xa8/0x110 fs/kernfs/dir.c:1574
 kernfs_remove_by_name include/linux/kernfs.h:558 [inline]
 sysfs_unmerge_group+0xe3/0x160 fs/sysfs/group.c:368
 rpm_sysfs_remove drivers/base/power/sysfs.c:826 [inline]
 dpm_sysfs_remove+0x79/0xb0 drivers/base/power/sysfs.c:835
 device_del+0x20b/0xc80 drivers/base/core.c:3569
 device_unregister+0x1f/0xc0 drivers/base/core.c:3624
 usb_remove_ep_devs+0x3e/0x80 drivers/usb/core/endpoint.c:188
 remove_intf_ep_devs drivers/usb/core/message.c:1267 [inline]
 usb_disable_device+0x306/0x7b0 drivers/usb/core/message.c:1418
 usb_disconnect.cold+0x278/0x6ec drivers/usb/core/hub.c:2228
 hub_port_connect drivers/usb/core/hub.c:5207 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5665 [inline]
 hub_event+0x1e74/0x4680 drivers/usb/core/hub.c:5747
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
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: 14 Comm: kworker/0:1 Not tainted 5.18.0-rc3-syzkaller-00007-g559089e0a93d #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:2163 [inline]
RIP: 0010:__skb_queue_before include/linux/skbuff.h:2269 [inline]
RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2302 [inline]
RIP: 0010:skb_queue_tail+0x9e/0x140 net/core/skbuff.c:3374
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 80 00 00 00 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 4f 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc900000079d8 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff88806f533838 RCX: ffffffff815d4820
RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff88801677d408
RBP: ffff88801677d400 R08: 0000000000000001 R09: 0000000000000003
R10: fffff52000000f29 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88806f533850 R14: 00000000ffff9e06 R15: ffffffff8527c940
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fec2d37e158 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ath9k_htc_txep+0x287/0x400 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:712
 ath9k_htc_txcompletion_cb+0x1cd/0x2e0 drivers/net/wireless/ath/ath9k/htc_hst.c:353
 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:1670
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1747
 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1737
 __run_timers kernel/time/timer.c:1715 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1750
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 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:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0xde/0x180 mm/kasan/generic.c:189
Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c
RSP: 0018:ffffc90000f4f710 EFLAGS: 00000246
RAX: ffffed100ebc78f0 RBX: ffffed100ebc78f1 RCX: ffffffff81fda003
RDX: ffffed100ebc78f1 RSI: 0000000000000004 RDI: ffff888075e3c784
RBP: ffffed100ebc78f0 R08: 0000000000000000 R09: ffff888075e3c787
R10: ffffed100ebc78f0 R11: 0000000000000001 R12: ffff888075e3c784
R13: 0000000000000100 R14: dffffc0000000000 R15: ffff888140091400
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
 kernfs_drain fs/kernfs/dir.c:471 [inline]
 __kernfs_remove+0x8f3/0xb20 fs/kernfs/dir.c:1376
 kernfs_remove_by_name_ns+0xa8/0x110 fs/kernfs/dir.c:1574
 kernfs_remove_by_name include/linux/kernfs.h:558 [inline]
 sysfs_unmerge_group+0xe3/0x160 fs/sysfs/group.c:368
 rpm_sysfs_remove drivers/base/power/sysfs.c:826 [inline]
 dpm_sysfs_remove+0x79/0xb0 drivers/base/power/sysfs.c:835
 device_del+0x20b/0xc80 drivers/base/core.c:3569
 device_unregister+0x1f/0xc0 drivers/base/core.c:3624
 usb_remove_ep_devs+0x3e/0x80 drivers/usb/core/endpoint.c:188
 remove_intf_ep_devs drivers/usb/core/message.c:1267 [inline]
 usb_disable_device+0x306/0x7b0 drivers/usb/core/message.c:1418
 usb_disconnect.cold+0x278/0x6ec drivers/usb/core/hub.c:2228
 hub_port_connect drivers/usb/core/hub.c:5207 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5665 [inline]
 hub_event+0x1e74/0x4680 drivers/usb/core/hub.c:5747
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__skb_insert include/linux/skbuff.h:2163 [inline]
RIP: 0010:__skb_queue_before include/linux/skbuff.h:2269 [inline]
RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2302 [inline]
RIP: 0010:skb_queue_tail+0x9e/0x140 net/core/skbuff.c:3374
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 80 00 00 00 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 4f 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc900000079d8 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff88806f533838 RCX: ffffffff815d4820
RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff88801677d408
RBP: ffff88801677d400 R08: 0000000000000001 R09: 0000000000000003
R10: fffff52000000f29 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88806f533850 R14: 00000000ffff9e06 R15: ffffffff8527c940
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fec2d37e158 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	74 f2                	je     0xfffffff4
   2:	48 89 c2             	mov    %rax,%rdx
   5:	b8 01 00 00 00       	mov    $0x1,%eax
   a:	48 85 d2             	test   %rdx,%rdx
   d:	75 56                	jne    0x65
   f:	5b                   	pop    %rbx
  10:	5d                   	pop    %rbp
  11:	41 5c                	pop    %r12
  13:	c3                   	retq
  14:	48 85 d2             	test   %rdx,%rdx
  17:	74 5e                	je     0x77
  19:	48 01 ea             	add    %rbp,%rdx
  1c:	eb 09                	jmp    0x27
  1e:	48 83 c0 01          	add    $0x1,%rax
  22:	48 39 d0             	cmp    %rdx,%rax
  25:	74 50                	je     0x77
  27:	80 38 00             	cmpb   $0x0,(%rax)
* 2a:	74 f2                	je     0x1e <-- trapping instruction
  2c:	eb d4                	jmp    0x2
  2e:	41 bc 08 00 00 00    	mov    $0x8,%r12d
  34:	48 89 ea             	mov    %rbp,%rdx
  37:	45 29 dc             	sub    %r11d,%r12d
  3a:	4d 8d 1c 2c          	lea    (%r12,%rbp,1),%r11
  3e:	eb 0c                	jmp    0x4c