[ OK ] Reached target Login Prompts. [ 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 '10.128.10.46' (ECDSA) to the list of known hosts. syzkaller login: [ 40.121181][ T6816] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program [ 41.220681][ T1534] Bluetooth: hci0: hardware error 0x00 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 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 executing program executing program executing program executing program executing program executing program [ 41.377141][ T6840] debugfs: Directory '200' with parent 'hci0' already present! [ 41.385751][ T6840] list_add double add: new=ffff8880a849a418, prev=ffff8880a849a418, next=ffff8880a9aefe00. [ 41.396135][ T6840] ------------[ cut here ]------------ [ 41.401658][ T6840] kernel BUG at lib/list_debug.c:31! [ 41.406949][ T6840] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 41.413002][ T6840] CPU: 1 PID: 6840 Comm: kworker/u5:1 Not tainted 5.8.0-rc7-syzkaller #0 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 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 executing program executing program executing program [ 41.421392][ T6840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.431439][ T6840] Workqueue: hci0 hci_rx_work [ 41.436109][ T6840] RIP: 0010:__list_add_valid+0x8a/0xc0 [ 41.441557][ T6840] Code: 74 11 4d 39 f7 74 0c b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 c8 b5 14 89 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 13 28 bc fd <0f> 0b 48 c7 c7 13 b5 14 89 4c 89 e6 4c 89 f1 31 c0 e8 fd 27 bc fd [ 41.463602][ T6840] RSP: 0018:ffffc90001677858 EFLAGS: 00010246 [ 41.469656][ T6840] RAX: 0000000000000058 RBX: ffff8880a9aefe08 RCX: 903eceb67f292300 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 executing program executing program executing program executing program executing program [ 41.477627][ T6840] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 41.485589][ T6840] RBP: ffff8880a9aefe00 R08: ffffffff815dd389 R09: ffffed1015d262c0 [ 41.493548][ T6840] R10: ffffed1015d262c0 R11: 0000000000000000 R12: ffff8880a849a418 [ 41.501509][ T6840] R13: dffffc0000000000 R14: ffff8880a9aefe00 R15: ffff8880a849a418 [ 41.509467][ T6840] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 41.518381][ T6840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 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 executing program executing program executing program executing program executing program executing program [ 41.524950][ T6840] CR2: 00005574c736e628 CR3: 000000009e4b8000 CR4: 00000000001406e0 [ 41.532902][ T6840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.540851][ T6840] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.548804][ T6840] Call Trace: [ 41.552082][ T6840] kobject_add_internal+0x1fa/0xa90 [ 41.557256][ T6840] kobject_add+0xef/0x190 [ 41.561569][ T6840] ? device_add+0x458/0x1a10 [ 41.566149][ T6840] ? get_device_parent+0x142/0x4c0 [ 41.571247][ T6840] device_add+0x53d/0x1a10 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 executing program executing program executing program executing program executing program executing program [ 41.575653][ T6840] ? kobject_set_name_vargs+0xca/0x110 [ 41.581097][ T6840] ? dev_set_name+0x6c/0x90 [ 41.585593][ T6840] hci_conn_add_sysfs+0x7c/0xe0 [ 41.590442][ T6840] hci_event_packet+0x1227c/0x18260 [ 41.595632][ T6840] ? trace_lock_release+0x137/0x1a0 [ 41.600821][ T6840] ? _raw_spin_unlock_irqrestore+0x6f/0xd0 [ 41.606616][ T6840] ? lockdep_hardirqs_on+0x38/0xe0 [ 41.611717][ T6840] hci_rx_work+0x236/0x9c0 [ 41.616129][ T6840] process_one_work+0x789/0xfc0 [ 41.620975][ T6840] worker_thread+0xaa4/0x1460 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 [ 41.625648][ T6840] kthread+0x37e/0x3a0 [ 41.629703][ T6840] ? rcu_lock_release+0x20/0x20 [ 41.634541][ T6840] ? kthread_blkcg+0xd0/0xd0 [ 41.639125][ T6840] ret_from_fork+0x1f/0x30 [ 41.643525][ T6840] Modules linked in: [ 41.647505][ T6840] ---[ end trace d74eac92fd2eae9d ]--- [ 41.652986][ T6840] RIP: 0010:__list_add_valid+0x8a/0xc0 [ 41.658430][ T6840] Code: 74 11 4d 39 f7 74 0c b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 c8 b5 14 89 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 13 28 bc fd <0f> 0b 48 c7 c7 13 b5 14 89 4c 89 e6 4c 89 f1 31 c0 e8 fd 27 bc fd 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 executing program executing program executing program executing program executing program [ 41.678070][ T6840] RSP: 0018:ffffc90001677858 EFLAGS: 00010246 [ 41.684168][ T6840] RAX: 0000000000000058 RBX: ffff8880a9aefe08 RCX: 903eceb67f292300 [ 41.692176][ T6840] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 41.700137][ T6840] RBP: ffff8880a9aefe00 R08: ffffffff815dd389 R09: ffffed1015d262c0 [ 41.708151][ T6840] R10: ffffed1015d262c0 R11: 0000000000000000 R12: ffff8880a849a418 [ 41.716168][ T6840] R13: dffffc0000000000 R14: ffff8880a9aefe00 R15: ffff8880a849a418 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 executing program [ 41.724174][ T6840] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 41.733140][ T6840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.739716][ T6840] CR2: 00005574c736e628 CR3: 000000009e4b8000 CR4: 00000000001406e0 [ 41.747727][ T6840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.755733][ T6840] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.763741][ T6840] Kernel panic - not syncing: Fatal exception [ 41.770531][ T6840] Kernel Offset: disabled [ 41.774846][ T6840] Rebooting in 86400 seconds..