[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts. syzkaller login: [ 38.099014] IPVS: ftp: loaded support on port[0] = 21 executing program [ 38.164507] kasan: CONFIG_KASAN_INLINE enabled [ 38.170353] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 38.178333] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 38.184580] CPU: 0 PID: 8132 Comm: kworker/u5:1 Not tainted 4.19.157-syzkaller #0 [ 38.192206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.201548] Workqueue: hci0 hci_rx_work [ 38.205508] RIP: 0010:hci_phy_link_complete_evt.isra.0+0x252/0x930 [ 38.211831] Code: 48 c1 ea 03 80 3c 02 00 0f 85 28 06 00 00 48 8b 9d 28 08 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 0c 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b [ 38.230733] RSP: 0000:ffff8880b129fa70 EFLAGS: 00010202 [ 38.236102] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87592837 [ 38.243357] RDX: 0000000000000002 RSI: ffffffff87592844 RDI: 0000000000000010 [ 38.250616] RBP: ffff8880b01be040 R08: 0000000000000000 R09: 0000000000000000 [ 38.257880] R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000000c9 [ 38.265146] R13: dffffc0000000000 R14: ffff8880a8849f00 R15: ffff8880aa135c8b [ 38.272419] FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 38.280648] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.286522] CR2: 00007fa5de480320 CR3: 00000000abea1000 CR4: 00000000001406f0 [ 38.293787] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.301055] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.308318] Call Trace: [ 38.310893] hci_event_packet+0x2a35/0x7e19 [ 38.315197] ? mark_held_locks+0xf0/0xf0 [ 38.319249] ? __lock_acquire+0x6de/0x3ff0 [ 38.323466] ? hci_cmd_complete_evt+0xc280/0xc280 [ 38.328294] ? __update_load_avg_se+0x5ec/0xa00 [ 38.332993] ? debug_object_deactivate+0x1f9/0x2e0 [ 38.337964] ? mark_held_locks+0xa6/0xf0 [ 38.342020] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 38.347112] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.351678] hci_rx_work+0x4ad/0xc70 [ 38.355385] process_one_work+0x864/0x1570 [ 38.359622] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 38.364301] worker_thread+0x64c/0x1130 [ 38.368267] ? process_one_work+0x1570/0x1570 [ 38.372744] kthread+0x33f/0x460 [ 38.376107] ? kthread_park+0x180/0x180 [ 38.380062] ret_from_fork+0x24/0x30 [ 38.383751] Modules linked in: [ 38.388495] ---[ end trace 2dc842a1c73b1646 ]--- [ 38.393277] RIP: 0010:hci_phy_link_complete_evt.isra.0+0x252/0x930 [ 38.400399] Code: 48 c1 ea 03 80 3c 02 00 0f 85 28 06 00 00 48 8b 9d 28 08 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 0c 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b [ 38.419656] RSP: 0000:ffff8880b129fa70 EFLAGS: 00010202 [ 38.426147] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87592837 [ 38.433412] RDX: 0000000000000002 RSI: ffffffff87592844 RDI: 0000000000000010 [ 38.440725] RBP: ffff8880b01be040 R08: 0000000000000000 R09: 0000000000000000 [ 38.448190] R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000000c9 [ 38.455531] R13: dffffc0000000000 R14: ffff8880a8849f00 R15: ffff8880aa135c8b [ 38.462901] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 38.471248] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.477223] CR2: 00007fa3b3109000 CR3: 00000000abea1000 CR4: 00000000001406e0 [ 38.484491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.491828] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.499188] Kernel panic - not syncing: Fatal exception [ 38.505042] Kernel Offset: disabled [ 38.508659] Rebooting in 86400 seconds..