[ 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 '10.128.0.98' (ECDSA) to the list of known hosts. syzkaller login: [ 40.571250][ T6813] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program [ 41.670240][ T1536] Bluetooth: hci0: hardware error 0x70 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 executing program executing program executing program executing program executing program executing program [ 41.825655][ T6837] debugfs: Directory '200' with parent 'hci0' already present! [ 41.833506][ T6837] list_add double add: new=ffff8880a797c418, prev=ffff8880a797c418, next=ffff8880a9af3e00. [ 41.844427][ T6837] ------------[ cut here ]------------ [ 41.849903][ T6837] kernel BUG at lib/list_debug.c:31! [ 41.855255][ T6837] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 41.861312][ T6837] CPU: 1 PID: 6837 Comm: kworker/u5:1 Not tainted 5.8.0-syzkaller #0 executing program [ 41.869345][ T6837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.879390][ T6837] Workqueue: hci0 hci_rx_work [ 41.884064][ T6837] RIP: 0010:__list_add_valid+0x8a/0xc0 [ 41.889510][ T6837] Code: 74 11 4d 39 f7 74 0c b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 ec d3 f4 88 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 03 cd bc fd <0f> 0b 48 c7 c7 37 d3 f4 88 4c 89 e6 4c 89 f1 31 c0 e8 ed cc bc fd [ 41.909107][ T6837] RSP: 0018:ffffc90005437858 EFLAGS: 00010246 [ 41.915154][ T6837] RAX: 0000000000000058 RBX: ffff8880a9af3e08 RCX: d4c141aff9590700 [ 41.923117][ T6837] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 41.931079][ T6837] RBP: ffff8880a9af3e00 R08: ffffffff815dffc9 R09: ffffed1015d262c0 [ 41.939039][ T6837] R10: ffffed1015d262c0 R11: 0000000000000000 R12: ffff8880a797c418 [ 41.947005][ T6837] R13: dffffc0000000000 R14: ffff8880a9af3e00 R15: ffff8880a797c418 [ 41.954971][ T6837] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 41.963888][ T6837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.970461][ T6837] CR2: 0000000020000000 CR3: 0000000009279000 CR4: 00000000001406e0 [ 41.978410][ T6837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.986373][ T6837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.994320][ T6837] Call Trace: [ 41.997603][ T6837] kobject_add_internal+0x1fa/0xa90 [ 42.002790][ T6837] kobject_add+0xef/0x190 [ 42.007108][ T6837] ? device_add+0x458/0x1a10 [ 42.011687][ T6837] ? get_device_parent+0x142/0x4c0 [ 42.016790][ T6837] device_add+0x53d/0x1a10 [ 42.021202][ T6837] ? kobject_set_name_vargs+0xca/0x110 [ 42.026635][ T6837] ? dev_set_name+0x6c/0x90 [ 42.031121][ T6837] hci_conn_add_sysfs+0x7c/0xe0 [ 42.035961][ T6837] hci_event_packet+0x1227c/0x18260 [ 42.041152][ T6837] ? trace_lock_release+0x137/0x1a0 [ 42.046346][ T6837] ? _raw_spin_unlock_irqrestore+0x6f/0xd0 [ 42.052139][ T6837] ? lockdep_hardirqs_on+0x49/0xf0 [ 42.057237][ T6837] hci_rx_work+0x236/0x9c0 [ 42.061641][ T6837] process_one_work+0x789/0xfc0 [ 42.066484][ T6837] worker_thread+0xaa4/0x1460 [ 42.071160][ T6837] kthread+0x37e/0x3a0 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 [ 42.075217][ T6837] ? rcu_lock_release+0x20/0x20 [ 42.080047][ T6837] ? kthread_blkcg+0xd0/0xd0 [ 42.084617][ T6837] ret_from_fork+0x1f/0x30 [ 42.089018][ T6837] Modules linked in: [ 42.092986][ T6837] ---[ end trace 50edcdcab11486ad ]--- [ 42.098478][ T6837] RIP: 0010:__list_add_valid+0x8a/0xc0 [ 42.103974][ T6837] Code: 74 11 4d 39 f7 74 0c b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 ec d3 f4 88 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 03 cd bc fd <0f> 0b 48 c7 c7 37 d3 f4 88 4c 89 e6 4c 89 f1 31 c0 e8 ed cc bc fd [ 42.123626][ T6837] RSP: 0018:ffffc90005437858 EFLAGS: 00010246 [ 42.129675][ T6837] RAX: 0000000000000058 RBX: ffff8880a9af3e08 RCX: d4c141aff9590700 [ 42.137660][ T6837] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 42.145671][ T6837] RBP: ffff8880a9af3e00 R08: ffffffff815dffc9 R09: ffffed1015d262c0 [ 42.153669][ T6837] R10: ffffed1015d262c0 R11: 0000000000000000 R12: ffff8880a797c418 [ 42.161626][ T6837] R13: dffffc0000000000 R14: ffff8880a9af3e00 R15: ffff8880a797c418 [ 42.169641][ T6837] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 42.178594][ T6837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.185203][ T6837] CR2: 0000000020000000 CR3: 0000000009279000 CR4: 00000000001406e0 [ 42.193166][ T6837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.201172][ T6837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.209171][ T6837] Kernel panic - not syncing: Fatal exception [ 42.216399][ T6837] Kernel Offset: disabled [ 42.220717][ T6837] Rebooting in 86400 seconds..