[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. syzkaller login: [ 61.594996][ T6834] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 62.781755][ T1539] Bluetooth: hci0: hardware error 0x70 [ 62.817670][ T6860] debugfs: Directory '200' with parent 'hci0' already present! executing program executing program [ 62.826971][ T6860] list_add double add: new=ffff88808d848420, prev=ffff88808d848420, next=ffff88821b777b00. [ 62.837558][ T6860] ------------[ cut here ]------------ [ 62.843143][ T6860] kernel BUG at lib/list_debug.c:29! [ 62.848465][ T6860] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 62.854538][ T6860] CPU: 0 PID: 6860 Comm: kworker/u5:2 Not tainted 5.8.0-syzkaller #0 [ 62.862598][ T6860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.872667][ T6860] Workqueue: hci0 hci_rx_work executing program executing program executing program executing program executing program executing program executing program [ 62.877353][ T6860] RIP: 0010:__list_add_valid.cold+0x26/0x3c [ 62.883270][ T6860] Code: 57 ff ff ff 4c 89 e1 48 c7 c7 60 cc 93 88 e8 f1 34 c1 fd 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 a0 cd 93 88 e8 da 34 c1 fd <0f> 0b 48 89 f1 48 c7 c7 20 cd 93 88 4c 89 e6 e8 c6 34 c1 fd 0f 0b [ 62.902885][ T6860] RSP: 0018:ffffc90004b97830 EFLAGS: 00010282 [ 62.908976][ T6860] RAX: 0000000000000058 RBX: ffff88821b777b00 RCX: 0000000000000000 [ 62.916968][ T6860] RDX: ffff88808aa14040 RSI: ffffffff815db477 RDI: fffff52000972ef8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 62.925030][ T6860] RBP: ffff88808d848420 R08: 0000000000000058 R09: ffff8880ae631927 [ 62.933016][ T6860] R10: 0000000000000000 R11: 000000000009e4e8 R12: ffff88821b777b00 [ 62.941014][ T6860] R13: ffff88808879d288 R14: ffff88808d848438 R15: ffff88808d848420 [ 62.948995][ T6860] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 62.957936][ T6860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.964622][ T6860] CR2: 0000000020000000 CR3: 0000000009a8d000 CR4: 00000000001506f0 [ 62.972597][ T6860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.980563][ T6860] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.988535][ T6860] Call Trace: [ 62.991833][ T6860] kobject_add_internal+0x18d/0x940 [ 62.997031][ T6860] kobject_add+0x150/0x1c0 [ 63.001437][ T6860] ? kset_create_and_add+0x190/0x190 [ 63.007240][ T6860] ? kfree+0x1cd/0x2c0 [ 63.011312][ T6860] ? trace_hardirqs_on+0x5f/0x220 [ 63.016339][ T6860] ? lockdep_hardirqs_on+0x76/0xf0 [ 63.021457][ T6860] ? device_add+0x33b/0x1c40 [ 63.026052][ T6860] device_add+0x35a/0x1c40 [ 63.030515][ T6860] ? debugfs_create_dir+0x348/0x490 [ 63.035719][ T6860] ? devlink_add_symlinks+0x450/0x450 [ 63.041097][ T6860] ? hci_debugfs_create_conn+0x179/0x1f0 [ 63.046904][ T6860] ? hci_debugfs_create_le+0x850/0x850 [ 63.052362][ T6860] hci_conn_add_sysfs+0x84/0xe0 [ 63.057242][ T6860] hci_event_packet+0x1286/0x87a8 [ 63.062368][ T6860] ? hci_cmd_complete_evt+0xc6d0/0xc6d0 [ 63.067957][ T6860] ? lock_acquire+0x1f1/0xad0 [ 63.073418][ T6860] ? skb_dequeue+0x1c/0x180 [ 63.077928][ T6860] ? find_held_lock+0x2d/0x110 [ 63.082691][ T6860] ? mark_lock+0xbc/0x1710 [ 63.087164][ T6860] ? mark_held_locks+0x9f/0xe0 [ 63.092702][ T6860] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 63.098516][ T6860] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 63.104540][ T6860] ? trace_hardirqs_on+0x5f/0x220 [ 63.109568][ T6860] ? lockdep_hardirqs_on+0x76/0xf0 [ 63.114693][ T6860] hci_rx_work+0x22e/0xb50 [ 63.119108][ T6860] process_one_work+0x94c/0x1670 [ 63.124054][ T6860] ? lock_release+0x8e0/0x8e0 [ 63.128751][ T6860] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 63.134132][ T6860] ? rwlock_bug.part.0+0x90/0x90 [ 63.139242][ T6860] worker_thread+0x64c/0x1120 [ 63.143923][ T6860] ? __kthread_parkme+0x13f/0x1e0 [ 63.148951][ T6860] ? process_one_work+0x1670/0x1670 [ 63.154155][ T6860] kthread+0x3b5/0x4a0 [ 63.158227][ T6860] ? __kthread_bind_mask+0xc0/0xc0 [ 63.163340][ T6860] ? __kthread_bind_mask+0xc0/0xc0 [ 63.168480][ T6860] ret_from_fork+0x1f/0x30 [ 63.172886][ T6860] Modules linked in: [ 63.176863][ T6860] ---[ end trace 3b6504ead81e9552 ]--- [ 63.182355][ T6860] RIP: 0010:__list_add_valid.cold+0x26/0x3c [ 63.189034][ T6860] Code: 57 ff ff ff 4c 89 e1 48 c7 c7 60 cc 93 88 e8 f1 34 c1 fd 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 a0 cd 93 88 e8 da 34 c1 fd <0f> 0b 48 89 f1 48 c7 c7 20 cd 93 88 4c 89 e6 e8 c6 34 c1 fd 0f 0b [ 63.208720][ T6860] RSP: 0018:ffffc90004b97830 EFLAGS: 00010282 [ 63.214920][ T6860] RAX: 0000000000000058 RBX: ffff88821b777b00 RCX: 0000000000000000 [ 63.222948][ T6860] RDX: ffff88808aa14040 RSI: ffffffff815db477 RDI: fffff52000972ef8 [ 63.231018][ T6860] RBP: ffff88808d848420 R08: 0000000000000058 R09: ffff8880ae631927 [ 63.238991][ T6860] R10: 0000000000000000 R11: 000000000009e4e8 R12: ffff88821b777b00 [ 63.247000][ T6860] R13: ffff88808879d288 R14: ffff88808d848438 R15: ffff88808d848420 [ 63.255082][ T6860] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 63.264163][ T6860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.270808][ T6860] CR2: 0000000020000000 CR3: 0000000009a8d000 CR4: 00000000001506f0 [ 63.279483][ T6860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.287510][ T6860] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.295557][ T6860] Kernel panic - not syncing: Fatal exception [ 63.303400][ T6860] Kernel Offset: disabled [ 63.307719][ T6860] Rebooting in 86400 seconds..