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: 0 Comm: swapper/0 Not tainted 5.18.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x57/0x7d 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/0x5660 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+0x1c/0x140 net/core/skbuff.c:3373 hif_usb_regout_cb+0xf6/0x1a0 drivers/net/wireless/ath/ath9k/hif_usb.c:90 __usb_hcd_giveback_urb+0x238/0x3f0 drivers/usb/core/hcd.c:1670 dummy_timer+0xeb8/0x2eb0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x163/0x4a0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x530/0x8e0 kernel/time/timer.c:1737 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0x9c/0x190 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 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] RIP: 0010:acpi_idle_do_entry+0x15e/0x1c0 drivers/acpi/processor_idle.c:551 Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 6a 48 8b 45 00 a8 08 75 c9 e8 cd 29 e0 f8 eb 07 0f 00 2d c4 25 bb 00 fb f4 <9c> 58 fa f6 c4 02 74 b1 5d e9 a4 28 e0 f8 48 89 ef 5d e9 ab f9 ff RSP: 0018:ffffffff8aa07d60 EFLAGS: 00000202 RAX: 0000000000035d13 RBX: ffff8881459a8065 RCX: 1ffffffff194d411 RDX: 0000000000000000 RSI: ffffffff88eb93e0 RDI: ffffffff894243e0 RBP: ffffffff8aabb4c0 R08: 0000000000000001 R09: 0000000000000001 R10: fffffbfff1557698 R11: 0000000000000001 R12: 0000000000000001 R13: ffff8881459a8064 R14: ffffffff8b739820 R15: ffff8881475b0004 acpi_idle_enter+0x2c0/0x4b0 drivers/acpi/processor_idle.c:686 cpuidle_enter_state+0x152/0xb40 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x45/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 rest_init+0x144/0x200 init/main.c:726 arch_call_rest_init+0xa/0xb init/main.c:882 start_kernel+0x343/0x361 init/main.c:1140 secondary_startup_64_no_verify+0xc3/0xcb 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: 0 Comm: swapper/0 Not tainted 5.18.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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+0x99/0x140 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:ffffc90000007ab8 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff88806f5a3838 RCX: ffffffff815501c0 RDX: 0000000000000000 RSI: 0000000000000096 RDI: ffff8880156ae948 RBP: ffff8880156ae940 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000000f45 R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: ffff88806f5a3850 R14: ffffffff8bd4aaa0 R15: ffff8880157fc600 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c7c781b600 CR3: 000000007bcda000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hif_usb_regout_cb+0xf6/0x1a0 drivers/net/wireless/ath/ath9k/hif_usb.c:90 __usb_hcd_giveback_urb+0x238/0x3f0 drivers/usb/core/hcd.c:1670 dummy_timer+0xeb8/0x2eb0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x163/0x4a0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x530/0x8e0 kernel/time/timer.c:1737 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0x9c/0x190 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 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] RIP: 0010:acpi_idle_do_entry+0x15e/0x1c0 drivers/acpi/processor_idle.c:551 Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 6a 48 8b 45 00 a8 08 75 c9 e8 cd 29 e0 f8 eb 07 0f 00 2d c4 25 bb 00 fb f4 <9c> 58 fa f6 c4 02 74 b1 5d e9 a4 28 e0 f8 48 89 ef 5d e9 ab f9 ff RSP: 0018:ffffffff8aa07d60 EFLAGS: 00000202 RAX: 0000000000035d13 RBX: ffff8881459a8065 RCX: 1ffffffff194d411 RDX: 0000000000000000 RSI: ffffffff88eb93e0 RDI: ffffffff894243e0 RBP: ffffffff8aabb4c0 R08: 0000000000000001 R09: 0000000000000001 R10: fffffbfff1557698 R11: 0000000000000001 R12: 0000000000000001 R13: ffff8881459a8064 R14: ffffffff8b739820 R15: ffff8881475b0004 acpi_idle_enter+0x2c0/0x4b0 drivers/acpi/processor_idle.c:686 cpuidle_enter_state+0x152/0xb40 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x45/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 rest_init+0x144/0x200 init/main.c:726 arch_call_rest_init+0xa/0xb init/main.c:882 start_kernel+0x343/0x361 init/main.c:1140 secondary_startup_64_no_verify+0xc3/0xcb 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+0x99/0x140 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:ffffc90000007ab8 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff88806f5a3838 RCX: ffffffff815501c0 RDX: 0000000000000000 RSI: 0000000000000096 RDI: ffff8880156ae948 RBP: ffff8880156ae940 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000000f45 R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: ffff88806f5a3850 R14: ffffffff8bd4aaa0 R15: ffff8880157fc600 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c7c781b600 CR3: 000000007bcda000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 00 fc add %bh,%ah 6: ff (bad) 7: df 48 c1 fisttps -0x3f(%rax) a: ea (bad) b: 03 80 3c 02 00 75 add 0x7500023c(%rax),%eax 11: 6a 48 pushq $0x48 13: 8b 45 00 mov 0x0(%rbp),%eax 16: a8 08 test $0x8,%al 18: 75 c9 jne 0xffffffe3 1a: e8 cd 29 e0 f8 callq 0xf8e029ec 1f: eb 07 jmp 0x28 21: 0f 00 2d c4 25 bb 00 verw 0xbb25c4(%rip) # 0xbb25ec 28: fb sti 29: f4 hlt * 2a: 9c pushfq <-- trapping instruction 2b: 58 pop %rax 2c: fa cli 2d: f6 c4 02 test $0x2,%ah 30: 74 b1 je 0xffffffe3 32: 5d pop %rbp 33: e9 a4 28 e0 f8 jmpq 0xf8e028dc 38: 48 89 ef mov %rbp,%rdi 3b: 5d pop %rbp 3c: e9 .byte 0xe9 3d: ab stos %eax,%es:(%rdi) 3e: f9 stc 3f: ff .byte 0xff