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: 3604 Comm: sshd Not tainted 6.0.0-rc1-syzkaller-00160-g4c2d0b039c5c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __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:979 [inline] register_lock_class+0xf1b/0x1120 kernel/locking/lockdep.c:1292 __lock_acquire+0x109/0x56d0 kernel/locking/lockdep.c:4932 lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __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:3396 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:1671 usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1d3/0x9c6 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:atime_needs_update+0x1/0x870 fs/inode.c:1887 Code: 00 00 00 00 48 89 ef e8 3d 5c a4 07 e8 68 e7 9d ff 4c 89 e0 5d 41 5c c3 e8 5c 3f ea ff eb d9 66 2e 0f 1f 84 00 00 00 00 00 55 <48> 89 e5 41 57 41 56 41 55 49 89 fd 41 54 53 48 89 f3 48 83 ec 08 RSP: 0018:ffffc90002d1fb28 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff888075773a70 RCX: 0000000000000000 RDX: 1ffff1100eaee75b RSI: ffff8880756dad90 RDI: ffff88801d5e1410 RBP: ffffc90002d1fbe0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff920005a3f6a R13: ffff8880756dad90 R14: ffff88801d5e1410 R15: ffff88814013cda0 touch_atime+0xd3/0x700 fs/inode.c:1927 file_accessed include/linux/fs.h:2516 [inline] pipe_read+0xc90/0x1100 fs/pipe.c:395 call_read_iter include/linux/fs.h:2181 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x7f6/0x930 fs/read_write.c:470 ksys_read+0x1e8/0x250 fs/read_write.c:607 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f52c3a268fe Code: c0 e9 e6 fe ff ff 50 48 8d 3d 0e c7 09 00 e8 c9 cf 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007ffe3299f4d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f52c3a268fe RDX: 0000000000004000 RSI: 00007ffe3299f4e8 RDI: 0000000000000009 RBP: 000055d8779ad450 R08: 000055d8779ae750 R09: 00007ffe329b5080 R10: 00007ffe329b50f0 R11: 0000000000000246 R12: 0000000000000030 R13: 000055d8779ac030 R14: 00007ffe3299f4e8 R15: 000055d8779ae8d0 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: 3604 Comm: sshd Not tainted 6.0.0-rc1-syzkaller-00160-g4c2d0b039c5c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:__skb_insert include/linux/skbuff.h:2157 [inline] RIP: 0010:__skb_queue_before include/linux/skbuff.h:2263 [inline] RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2296 [inline] RIP: 0010:skb_queue_tail+0x9e/0x140 net/core/skbuff.c:3397 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:ffffc900000079e0 EFLAGS: 00010056 RAX: dffffc0000000000 RBX: ffff888020aeb890 RCX: ffffffff815ff650 RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff88807f17ac88 RBP: ffff88807f17ac80 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000000f2a R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: ffff888020aeb8a8 R14: 00000000ffff9d89 R15: ffffffff853c1820 FS: 00007f52c38d6800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a6ee9fd210 CR3: 0000000072392000 CR4: 0000000000350ef0 Call Trace: 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:1671 usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1d3/0x9c6 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:atime_needs_update+0x1/0x870 fs/inode.c:1887 Code: 00 00 00 00 48 89 ef e8 3d 5c a4 07 e8 68 e7 9d ff 4c 89 e0 5d 41 5c c3 e8 5c 3f ea ff eb d9 66 2e 0f 1f 84 00 00 00 00 00 55 <48> 89 e5 41 57 41 56 41 55 49 89 fd 41 54 53 48 89 f3 48 83 ec 08 RSP: 0018:ffffc90002d1fb28 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff888075773a70 RCX: 0000000000000000 RDX: 1ffff1100eaee75b RSI: ffff8880756dad90 RDI: ffff88801d5e1410 RBP: ffffc90002d1fbe0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff920005a3f6a R13: ffff8880756dad90 R14: ffff88801d5e1410 R15: ffff88814013cda0 touch_atime+0xd3/0x700 fs/inode.c:1927 file_accessed include/linux/fs.h:2516 [inline] pipe_read+0xc90/0x1100 fs/pipe.c:395 call_read_iter include/linux/fs.h:2181 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x7f6/0x930 fs/read_write.c:470 ksys_read+0x1e8/0x250 fs/read_write.c:607 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f52c3a268fe Code: c0 e9 e6 fe ff ff 50 48 8d 3d 0e c7 09 00 e8 c9 cf 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007ffe3299f4d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f52c3a268fe RDX: 0000000000004000 RSI: 00007ffe3299f4e8 RDI: 0000000000000009 RBP: 000055d8779ad450 R08: 000055d8779ae750 R09: 00007ffe329b5080 R10: 00007ffe329b50f0 R11: 0000000000000246 R12: 0000000000000030 R13: 000055d8779ac030 R14: 00007ffe3299f4e8 R15: 000055d8779ae8d0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__skb_insert include/linux/skbuff.h:2157 [inline] RIP: 0010:__skb_queue_before include/linux/skbuff.h:2263 [inline] RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2296 [inline] RIP: 0010:skb_queue_tail+0x9e/0x140 net/core/skbuff.c:3397 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:ffffc900000079e0 EFLAGS: 00010056 RAX: dffffc0000000000 RBX: ffff888020aeb890 RCX: ffffffff815ff650 RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff88807f17ac88 RBP: ffff88807f17ac80 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000000f2a R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: ffff888020aeb8a8 R14: 00000000ffff9d89 R15: ffffffff853c1820 FS: 00007f52c38d6800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a6ee9fd210 CR3: 0000000072392000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 48 89 ef mov %rbp,%rdi 7: e8 3d 5c a4 07 callq 0x7a45c49 c: e8 68 e7 9d ff callq 0xff9de779 11: 4c 89 e0 mov %r12,%rax 14: 5d pop %rbp 15: 41 5c pop %r12 17: c3 retq 18: e8 5c 3f ea ff callq 0xffea3f79 1d: eb d9 jmp 0xfffffff8 1f: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 26: 00 00 00 29: 55 push %rbp * 2a: 48 89 e5 mov %rsp,%rbp <-- trapping instruction 2d: 41 57 push %r15 2f: 41 56 push %r14 31: 41 55 push %r13 33: 49 89 fd mov %rdi,%r13 36: 41 54 push %r12 38: 53 push %rbx 39: 48 89 f3 mov %rsi,%rbx 3c: 48 83 ec 08 sub $0x8,%rsp