INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 31496 Comm: systemd-udevd Not tainted 5.11.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 assign_lock_key kernel/locking/lockdep.c:935 [inline]
 register_lock_class+0x1041/0x1100 kernel/locking/lockdep.c:1247
 __lock_acquire+0x101/0x54f0 kernel/locking/lockdep.c:4711
 lock_acquire kernel/locking/lockdep.c:5437 [inline]
 lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
 ath9k_htc_rxep+0x31/0x210 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1133
 ath9k_htc_rx_msg+0x2e4/0xb70 drivers/net/wireless/ath/ath9k/htc_hst.c:461
 ath9k_hif_usb_reg_in_cb+0x1ac/0x630 drivers/net/wireless/ath/ath9k/hif_usb.c:733
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1657
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1728
 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1971
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1744
 __do_softirq+0x2bc/0xa29 kernel/softirq.c:343
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu kernel/softirq.c:420 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:432
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:lock_page_memcg+0x1b5/0x4f0 mm/memcontrol.c:2185
Code: 41 b8 01 00 00 00 4c 89 f7 e8 d7 d7 9d ff 58 48 c7 c6 36 f4 ba 81 4c 89 f7 e8 b7 d0 9d ff 4d 85 ff 0f 85 2e 01 00 00 41 55 9d <4c> 8d ab c0 0b 00 00 be 04 00 00 00 4c 89 ef e8 97 94 fa ff 4c 89
RSP: 0000:ffffc9000f9cfb08 EFLAGS: 00000286
RAX: 00000000000001a7 RBX: ffff888140742000 RCX: ffffffff81584977
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000f9cfb68 R08: 0000000000000001 R09: ffffffff8ed307b7
R10: fffffbfff1da60f6 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000286 R14: ffff888140742688 R15: 0000000000000200
 page_add_file_rmap+0x36/0xc50 mm/rmap.c:1212
 alloc_set_pte+0x36e/0x1960 mm/memory.c:3837
 filemap_map_pages+0xe8c/0x10b0 mm/filemap.c:2967
 do_fault_around mm/memory.c:3980 [inline]
 do_read_fault mm/memory.c:4014 [inline]
 do_fault mm/memory.c:4147 [inline]
 handle_pte_fault mm/memory.c:4387 [inline]
 __handle_mm_fault mm/memory.c:4522 [inline]
 handle_mm_fault+0x35ef/0x5690 mm/memory.c:4620
 do_user_addr_fault+0x458/0xc60 arch/x86/mm/fault.c:1393
 handle_page_fault arch/x86/mm/fault.c:1450 [inline]
 exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1506
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:580
RIP: 0033:0x5563848c0f90
Code: 01 00 48 8d 3d 53 40 01 00 ba 42 02 00 00 e8 a7 ae ff ff 31 d2 89 16 e9 52 fd ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 <41> 54 55 49 89 cc 53 48 89 d5 48 89 fb e8 8e fb ff ff 83 f8 ff 74
RSP: 002b:00007ffff5471a78 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000556386424010 RCX: 0000000000000000
RDX: 00007ffff5471a88 RSI: 00007ffff5471a90 RDI: 000055638642a1c0
RBP: 00007ffff5471a90 R08: 000000000000ffff R09: 0000000000000000
R10: 00007fa2218e3220 R11: 000000000000000d R12: 00007ffff5471a88
R13: 0000556386438240 R14: 0000556386424010 R15: 0000556386424028
BUG: unable to handle page fault for address: ffffffffffffffc8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD b08f067 P4D b08f067 PUD b091067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 31496 Comm: systemd-udevd Not tainted 5.11.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ath9k_htc_rxep+0xb5/0x210 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1135
Code: 8b 43 38 48 8d 58 c8 49 39 c4 0f 84 ee 00 00 00 e8 40 86 86 fc 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 74 06 0f 8e 0a 01 00 00 <44> 0f b6 3b 31 ff 44 89 fe e8 9d 8c 86 fc 45 84 ff 75 a8 e8 13 86
RSP: 0000:ffffc90000db09c0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffffffffffc8 RCX: ffffc900081c2000
RDX: 0000000000040000 RSI: ffffffff84ec4380 RDI: ffffc90000db0930
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520001b6126 R11: 0000000000000000 R12: ffff888013463558
R13: ffff888013463120 R14: ffff888013463568 R15: ffff888013e68ca8
FS:  00007fa222aca8c0(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffc8 CR3: 0000000075907000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 ath9k_htc_rx_msg+0x2e4/0xb70 drivers/net/wireless/ath/ath9k/htc_hst.c:461
 ath9k_hif_usb_reg_in_cb+0x1ac/0x630 drivers/net/wireless/ath/ath9k/hif_usb.c:733
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1657
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1728
 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1971
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1744
 __do_softirq+0x2bc/0xa29 kernel/softirq.c:343
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu kernel/softirq.c:420 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:432
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:lock_page_memcg+0x1b5/0x4f0 mm/memcontrol.c:2185
Code: 41 b8 01 00 00 00 4c 89 f7 e8 d7 d7 9d ff 58 48 c7 c6 36 f4 ba 81 4c 89 f7 e8 b7 d0 9d ff 4d 85 ff 0f 85 2e 01 00 00 41 55 9d <4c> 8d ab c0 0b 00 00 be 04 00 00 00 4c 89 ef e8 97 94 fa ff 4c 89
RSP: 0000:ffffc9000f9cfb08 EFLAGS: 00000286
RAX: 00000000000001a7 RBX: ffff888140742000 RCX: ffffffff81584977
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000f9cfb68 R08: 0000000000000001 R09: ffffffff8ed307b7
R10: fffffbfff1da60f6 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000286 R14: ffff888140742688 R15: 0000000000000200
 page_add_file_rmap+0x36/0xc50 mm/rmap.c:1212
 alloc_set_pte+0x36e/0x1960 mm/memory.c:3837
 filemap_map_pages+0xe8c/0x10b0 mm/filemap.c:2967
 do_fault_around mm/memory.c:3980 [inline]
 do_read_fault mm/memory.c:4014 [inline]
 do_fault mm/memory.c:4147 [inline]
 handle_pte_fault mm/memory.c:4387 [inline]
 __handle_mm_fault mm/memory.c:4522 [inline]
 handle_mm_fault+0x35ef/0x5690 mm/memory.c:4620
 do_user_addr_fault+0x458/0xc60 arch/x86/mm/fault.c:1393
 handle_page_fault arch/x86/mm/fault.c:1450 [inline]
 exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1506
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:580
RIP: 0033:0x5563848c0f90
Code: 01 00 48 8d 3d 53 40 01 00 ba 42 02 00 00 e8 a7 ae ff ff 31 d2 89 16 e9 52 fd ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 <41> 54 55 49 89 cc 53 48 89 d5 48 89 fb e8 8e fb ff ff 83 f8 ff 74
RSP: 002b:00007ffff5471a78 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000556386424010 RCX: 0000000000000000
RDX: 00007ffff5471a88 RSI: 00007ffff5471a90 RDI: 000055638642a1c0
RBP: 00007ffff5471a90 R08: 000000000000ffff R09: 0000000000000000
R10: 00007fa2218e3220 R11: 000000000000000d R12: 00007ffff5471a88
R13: 0000556386438240 R14: 0000556386424010 R15: 0000556386424028
Modules linked in:
CR2: ffffffffffffffc8
---[ end trace 1ac78674065ff09e ]---
RIP: 0010:ath9k_htc_rxep+0xb5/0x210 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1135
Code: 8b 43 38 48 8d 58 c8 49 39 c4 0f 84 ee 00 00 00 e8 40 86 86 fc 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 74 06 0f 8e 0a 01 00 00 <44> 0f b6 3b 31 ff 44 89 fe e8 9d 8c 86 fc 45 84 ff 75 a8 e8 13 86
RSP: 0000:ffffc90000db09c0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffffffffffc8 RCX: ffffc900081c2000
RDX: 0000000000040000 RSI: ffffffff84ec4380 RDI: ffffc90000db0930
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520001b6126 R11: 0000000000000000 R12: ffff888013463558
R13: ffff888013463120 R14: ffff888013463568 R15: ffff888013e68ca8
FS:  00007fa222aca8c0(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffc8 CR3: 0000000075907000 CR4: 0000000000350ee0