[ OK ] Started OpenBSD Secure Shell server. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.825316][ T2657] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 34.354417][ T2657] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 34.363594][ T2657] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 34.372004][ T2657] usb 1-1: Product: syz [ 34.377134][ T2657] usb 1-1: Manufacturer: syz [ 34.381743][ T2657] usb 1-1: SerialNumber: syz [ 34.426053][ T2657] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 35.083884][ T2657] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 executing program [ 36.087282][ T2620] usb 1-1: USB disconnect, device number 2 [ 36.095947][ C1] INFO: trying to register non-static key. [ 36.101790][ C1] the code is fine but needs lockdep annotation. [ 36.108096][ C1] turning off the locking correctness validator. [ 36.114497][ C1] CPU: 1 PID: 4408 Comm: systemd-udevd Not tainted 5.10.0-rc7-syzkaller #0 [ 36.123096][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.133136][ C1] Call Trace: [ 36.136503][ C1] [ 36.139347][ C1] dump_stack+0x107/0x163 [ 36.143657][ C1] register_lock_class+0x1041/0x1100 [ 36.148915][ C1] ? arch_stack_walk+0x93/0xe0 [ 36.153653][ C1] ? is_dynamic_key+0x1b0/0x1b0 [ 36.158475][ C1] ? lock_chain_count+0x20/0x20 [ 36.163298][ C1] __lock_acquire+0xff/0x54f0 [ 36.167951][ C1] ? __lock_acquire+0x16b7/0x54f0 [ 36.173069][ C1] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 36.179034][ C1] lock_acquire+0x288/0x700 [ 36.183522][ C1] ? skb_queue_tail+0x21/0x140 [ 36.188262][ C1] ? lock_release+0x6d0/0x6d0 [ 36.193390][ C1] ? lock_acquire+0x288/0x700 [ 36.198060][ C1] ? kcov_remote_start+0xce/0x400 [ 36.203059][ C1] ? ath9k_htc_txstatus+0x500/0x500 [ 36.208234][ C1] _raw_spin_lock_irqsave+0x36/0x50 [ 36.213416][ C1] ? skb_queue_tail+0x21/0x140 [ 36.218163][ C1] skb_queue_tail+0x21/0x140 [ 36.222767][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 36.227655][ C1] ath9k_htc_txep+0x287/0x400 [ 36.232310][ C1] ath9k_htc_txcompletion_cb+0x1cd/0x2f0 [ 36.237940][ C1] hif_usb_regout_cb+0x115/0x1c0 [ 36.242856][ C1] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 36.248295][ C1] usb_hcd_giveback_urb+0x367/0x410 [ 36.253468][ C1] dummy_timer+0x11f4/0x3280 [ 36.258044][ C1] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 36.264015][ C1] ? call_timer_fn+0xd5/0x630 [ 36.268670][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 36.273419][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 36.278162][ C1] call_timer_fn+0x1a5/0x630 [ 36.282743][ C1] ? timer_fixup_init+0x60/0x60 [ 36.287614][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 36.292443][ C1] ? lockdep_hardirqs_on_prepare+0x129/0x3e0 [ 36.298421][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 36.303161][ C1] __run_timers.part.0+0x67c/0xa10 [ 36.308248][ C1] ? call_timer_fn+0x630/0x630 [ 36.313019][ C1] ? clockevents_program_event+0x12b/0x350 [ 36.318816][ C1] ? tick_program_event+0xa8/0x130 [ 36.323901][ C1] run_timer_softirq+0x80/0x120 [ 36.328905][ C1] __do_softirq+0x1b2/0x945 [ 36.333400][ C1] asm_call_irq_on_stack+0xf/0x20 [ 36.338495][ C1] [ 36.341426][ C1] do_softirq_own_stack+0x80/0xa0 [ 36.346448][ C1] irq_exit_rcu+0x110/0x1a0 [ 36.350970][ C1] sysvec_apic_timer_interrupt+0x43/0xa0 [ 36.356607][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 36.362714][ C1] RIP: 0010:tomoyo_check_acl+0xc1/0x450 [ 36.368248][ C1] Code: c5 fc 67 ff 48 8d 7b 18 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 f7 02 00 00 44 0f b6 73 18 <31> ff 44 89 f6 e8 e5 f4 67 ff 45 84 f6 0f 85 61 01 00 00 e8 87 fc [ 36.387856][ C1] RSP: 0018:ffffc90000207ac0 EFLAGS: 00000246 [ 36.394366][ C1] RAX: 0000000000000000 RBX: ffff888100edac80 RCX: 0000000000000001 [ 36.402328][ C1] RDX: 0000000000000000 RSI: ffffffff81d6c89b RDI: ffff888100edac98 [ 36.410283][ C1] RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000001 [ 36.418363][ C1] R10: 0000000000000002 R11: ffffc90000207f58 R12: ffffc90000207bf0 [ 36.426318][ C1] R13: ffff88810368e990 R14: 0000000000000000 R15: 0000000000000000 [ 36.434284][ C1] ? tomoyo_check_acl+0x9b/0x450 [ 36.439354][ C1] ? tomoyo_same_mount_acl+0x450/0x450 [ 36.444814][ C1] tomoyo_path_permission+0x1ff/0x3a0 [ 36.450176][ C1] tomoyo_path_perm+0x2f0/0x400 [ 36.455007][ C1] ? tomoyo_check_open_permission+0x380/0x380 [ 36.461139][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 36.465967][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 36.471526][ C1] ? kmem_cache_free+0x598/0x5d0 [ 36.476466][ C1] ? putname+0xe1/0x120 [ 36.480597][ C1] security_inode_getattr+0xcf/0x140 [ 36.485863][ C1] vfs_fstat+0x43/0xb0 [ 36.489907][ C1] __do_sys_newfstat+0x81/0x100 [ 36.497251][ C1] ? __do_sys_fstat+0x100/0x100 [ 36.502101][ C1] ? copy_kernel_to_fpregs+0x9e/0xe0 [ 36.507359][ C1] ? copy_init_fpstate_to_fpregs+0xb0/0xb0 [ 36.513151][ C1] ? __secure_computing+0xb4/0x290 [ 36.518365][ C1] ? syscall_trace_enter.constprop.0+0x80/0x240 [ 36.524605][ C1] do_syscall_64+0x2d/0x40 [ 36.529012][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 36.534879][ C1] RIP: 0033:0x7fdd4ae922e2 [ 36.539275][ C1] Code: 48 8b 05 b9 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 77 33 48 63 fe b8 05 00 00 00 48 89 d6 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 48 8b 15 81 db 2b 00 f7 [ 36.558855][ C1] RSP: 002b:00007ffcfa583a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000005 [ 36.567255][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdd4ae922e2 [ 36.575206][ C1] RDX: 00007ffcfa583a90 RSI: 00007ffcfa583a90 RDI: 0000000000000007 [ 36.583164][ C1] RBP: 00007ffcfa583c40 R08: 0000000000000000 R09: 0000000000000001 [ 36.591544][ C1] R10: 0000000000080000 R11: 0000000000000246 R12: 000055f800133840 [ 36.599490][ C1] R13: 000055f8001352f0 R14: 000055f800124ec0 R15: 00007ffcfa583c00 [ 36.607457][ C1] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN [ 36.618529][ C1] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 36.626930][ C1] CPU: 1 PID: 4408 Comm: systemd-udevd Not tainted 5.10.0-rc7-syzkaller #0 [ 36.635505][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.645728][ C1] RIP: 0010:skb_queue_tail+0x9a/0x140 [ 36.651107][ C1] Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 7b 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 4a 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc [ 36.670687][ C1] RSP: 0018:ffffc900001489e8 EFLAGS: 00010046 [ 36.676751][ C1] RAX: dffffc0000000000 RBX: ffff88810170b5b0 RCX: ffffffff812708a0 [ 36.684715][ C1] RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff8881023f63c8 [ 36.692666][ C1] RBP: ffff8881023f63c0 R08: 0000000000000001 R09: 0000000000000003 [ 36.700633][ C1] R10: fffff5200002912b R11: 3535303030302052 R12: 0000000000000000 [ 36.708838][ C1] R13: ffff88810170b5c8 R14: 00000000ffff9848 R15: ffffffff82f58b80 [ 36.717148][ C1] FS: 00007fdd4c01f8c0(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 [ 36.726595][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.733167][ C1] CR2: 000055f80011f030 CR3: 00000001031da000 CR4: 00000000001506e0 [ 36.741128][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.749102][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.762128][ C1] Call Trace: [ 36.765398][ C1] [ 36.768227][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 36.773052][ C1] ath9k_htc_txep+0x287/0x400 [ 36.777703][ C1] ath9k_htc_txcompletion_cb+0x1cd/0x2f0 [ 36.783308][ C1] hif_usb_regout_cb+0x115/0x1c0 [ 36.788231][ C1] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 36.793585][ C1] usb_hcd_giveback_urb+0x367/0x410 [ 36.798753][ C1] dummy_timer+0x11f4/0x3280 [ 36.803327][ C1] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 36.809278][ C1] ? call_timer_fn+0xd5/0x630 [ 36.813947][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 36.818681][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 36.823428][ C1] call_timer_fn+0x1a5/0x630 [ 36.827991][ C1] ? timer_fixup_init+0x60/0x60 [ 36.832812][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 36.840341][ C1] ? lockdep_hardirqs_on_prepare+0x129/0x3e0 [ 36.846319][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 36.852271][ C1] __run_timers.part.0+0x67c/0xa10 [ 36.857397][ C1] ? call_timer_fn+0x630/0x630 [ 36.862149][ C1] ? clockevents_program_event+0x12b/0x350 [ 36.867932][ C1] ? tick_program_event+0xa8/0x130 [ 36.873039][ C1] run_timer_softirq+0x80/0x120 [ 36.878213][ C1] __do_softirq+0x1b2/0x945 [ 36.882691][ C1] asm_call_irq_on_stack+0xf/0x20 [ 36.887684][ C1] [ 36.890597][ C1] do_softirq_own_stack+0x80/0xa0 [ 36.895596][ C1] irq_exit_rcu+0x110/0x1a0 [ 36.900093][ C1] sysvec_apic_timer_interrupt+0x43/0xa0 [ 36.905697][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 36.911650][ C1] RIP: 0010:tomoyo_check_acl+0xc1/0x450 [ 36.917169][ C1] Code: c5 fc 67 ff 48 8d 7b 18 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 f7 02 00 00 44 0f b6 73 18 <31> ff 44 89 f6 e8 e5 f4 67 ff 45 84 f6 0f 85 61 01 00 00 e8 87 fc [ 36.936748][ C1] RSP: 0018:ffffc90000207ac0 EFLAGS: 00000246 [ 36.942884][ C1] RAX: 0000000000000000 RBX: ffff888100edac80 RCX: 0000000000000001 [ 36.950828][ C1] RDX: 0000000000000000 RSI: ffffffff81d6c89b RDI: ffff888100edac98 [ 36.958773][ C1] RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000001 [ 36.966806][ C1] R10: 0000000000000002 R11: ffffc90000207f58 R12: ffffc90000207bf0 [ 36.974752][ C1] R13: ffff88810368e990 R14: 0000000000000000 R15: 0000000000000000 [ 36.982717][ C1] ? tomoyo_check_acl+0x9b/0x450 [ 36.987629][ C1] ? tomoyo_same_mount_acl+0x450/0x450 [ 36.993060][ C1] tomoyo_path_permission+0x1ff/0x3a0 [ 36.998403][ C1] tomoyo_path_perm+0x2f0/0x400 [ 37.003231][ C1] ? tomoyo_check_open_permission+0x380/0x380 [ 37.009299][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 37.014156][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 37.019678][ C1] ? kmem_cache_free+0x598/0x5d0 [ 37.024598][ C1] ? putname+0xe1/0x120 [ 37.028815][ C1] security_inode_getattr+0xcf/0x140 [ 37.034075][ C1] vfs_fstat+0x43/0xb0 [ 37.038118][ C1] __do_sys_newfstat+0x81/0x100 [ 37.042941][ C1] ? __do_sys_fstat+0x100/0x100 [ 37.047866][ C1] ? copy_kernel_to_fpregs+0x9e/0xe0 [ 37.053123][ C1] ? copy_init_fpstate_to_fpregs+0xb0/0xb0 [ 37.058906][ C1] ? __secure_computing+0xb4/0x290 [ 37.063993][ C1] ? syscall_trace_enter.constprop.0+0x80/0x240 [ 37.070204][ C1] do_syscall_64+0x2d/0x40 [ 37.074594][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 37.080457][ C1] RIP: 0033:0x7fdd4ae922e2 [ 37.084848][ C1] Code: 48 8b 05 b9 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 77 33 48 63 fe b8 05 00 00 00 48 89 d6 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 48 8b 15 81 db 2b 00 f7 [ 37.104426][ C1] RSP: 002b:00007ffcfa583a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000005 [ 37.112811][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdd4ae922e2 [ 37.120765][ C1] RDX: 00007ffcfa583a90 RSI: 00007ffcfa583a90 RDI: 0000000000000007 [ 37.128710][ C1] RBP: 00007ffcfa583c40 R08: 0000000000000000 R09: 0000000000000001 [ 37.136684][ C1] R10: 0000000000080000 R11: 0000000000000246 R12: 000055f800133840 [ 37.144660][ C1] R13: 000055f8001352f0 R14: 000055f800124ec0 R15: 00007ffcfa583c00 [ 37.152610][ C1] Modules linked in: [ 37.156502][ C1] ---[ end trace 353e8e91a95b9987 ]--- [ 37.161940][ C1] RIP: 0010:skb_queue_tail+0x9a/0x140 [ 37.167286][ C1] Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 7b 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 4a 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc [ 37.186867][ C1] RSP: 0018:ffffc900001489e8 EFLAGS: 00010046 [ 37.192909][ C1] RAX: dffffc0000000000 RBX: ffff88810170b5b0 RCX: ffffffff812708a0 [ 37.201022][ C1] RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff8881023f63c8 [ 37.208985][ C1] RBP: ffff8881023f63c0 R08: 0000000000000001 R09: 0000000000000003 [ 37.216967][ C1] R10: fffff5200002912b R11: 3535303030302052 R12: 0000000000000000 [ 37.225090][ C1] R13: ffff88810170b5c8 R14: 00000000ffff9848 R15: ffffffff82f58b80 [ 37.233053][ C1] FS: 00007fdd4c01f8c0(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 [ 37.242014][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.248582][ C1] CR2: 000055f80011f030 CR3: 00000001031da000 CR4: 00000000001506e0 [ 37.256531][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.264495][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.272444][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 37.280411][ C1] Kernel Offset: disabled [ 37.284729][ C1] Rebooting in 86400 seconds..