[ 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 '10.128.0.150' (ECDSA) to the list of known hosts. syzkaller login: [ 40.347187][ T6965] IPVS: ftp: loaded support on port[0] = 21 executing program [ 41.436798][ T6992] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 41.448625][ T6992] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 41.457021][ T6992] CPU: 0 PID: 6992 Comm: kworker/u5:2 Not tainted 5.8.0-rc7-syzkaller #0 [ 41.465412][ T6992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.476587][ T6992] Workqueue: hci0 hci_rx_work [ 41.481263][ T6992] RIP: 0010:hci_event_packet+0x8386/0x18260 [ 41.487140][ T6992] Code: c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 80 3c 30 00 74 08 48 89 df e8 58 9a 5e fa 48 8b 1b 48 83 c3 10 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 3b 9a 5e fa 48 8b 1b 48 89 d8 48 [ 41.506725][ T6992] RSP: 0018:ffffc90001657ac8 EFLAGS: 00010202 [ 41.512762][ T6992] RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 [ 41.520704][ T6992] RDX: ffff888091cfc100 RSI: 0000000000000000 RDI: 0000000000000000 [ 41.528647][ T6992] RBP: ffff88808915c000 R08: ffffffff875506b4 R09: fffffbfff131a9a6 [ 41.536589][ T6992] R10: fffffbfff131a9a6 R11: 0000000000000000 R12: ffff88809247c010 [ 41.544528][ T6992] R13: ffff88809247d110 R14: dffffc0000000000 R15: ffff88809247c000 [ 41.552471][ T6992] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 41.561367][ T6992] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.567919][ T6992] CR2: 00007fff342d2108 CR3: 000000009fa4d000 CR4: 00000000001406f0 [ 41.575862][ T6992] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.583802][ T6992] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.591743][ T6992] Call Trace: [ 41.595013][ T6992] ? trace_lock_release+0x137/0x1a0 [ 41.600184][ T6992] ? _raw_spin_unlock_irqrestore+0x6f/0xd0 [ 41.605959][ T6992] ? lockdep_hardirqs_on+0x38/0xe0 [ 41.611040][ T6992] hci_rx_work+0x236/0x9c0 [ 41.615430][ T6992] process_one_work+0x789/0xfc0 [ 41.620254][ T6992] worker_thread+0xaa4/0x1460 [ 41.624902][ T6992] ? _raw_spin_unlock_irqrestore+0x6f/0xd0 [ 41.630676][ T6992] kthread+0x37e/0x3a0 [ 41.634712][ T6992] ? rcu_lock_release+0x20/0x20 [ 41.639529][ T6992] ? kthread_blkcg+0xd0/0xd0 [ 41.644087][ T6992] ret_from_fork+0x1f/0x30 [ 41.648471][ T6992] Modules linked in: [ 41.653403][ T6992] ---[ end trace f2751f6cdf6f79ca ]--- [ 41.658888][ T6992] RIP: 0010:hci_event_packet+0x8386/0x18260 [ 41.665065][ T6992] Code: c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 80 3c 30 00 74 08 48 89 df e8 58 9a 5e fa 48 8b 1b 48 83 c3 10 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 3b 9a 5e fa 48 8b 1b 48 89 d8 48 [ 41.684752][ T6992] RSP: 0018:ffffc90001657ac8 EFLAGS: 00010202 [ 41.690796][ T6992] RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 [ 41.698772][ T6992] RDX: ffff888091cfc100 RSI: 0000000000000000 RDI: 0000000000000000 [ 41.706788][ T6992] RBP: ffff88808915c000 R08: ffffffff875506b4 R09: fffffbfff131a9a6 [ 41.714804][ T6992] R10: fffffbfff131a9a6 R11: 0000000000000000 R12: ffff88809247c010 [ 41.722771][ T6992] R13: ffff88809247d110 R14: dffffc0000000000 R15: ffff88809247c000 [ 41.730756][ T6992] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 41.739698][ T6992] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.746398][ T6992] CR2: 00007fff342d2108 CR3: 0000000009479000 CR4: 00000000001406f0 [ 41.754422][ T6992] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.762375][ T6992] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.770349][ T6992] Kernel panic - not syncing: Fatal exception [ 41.777547][ T6992] Kernel Offset: disabled [ 41.781860][ T6992] Rebooting in 86400 seconds..