[  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 '10.128.0.197' (ECDSA) to the list of known hosts.
syzkaller login: [   85.003276][   T27] audit: type=1400 audit(1596367606.656:8): avc:  denied  { execmem } for  pid=6827 comm="syz-executor488" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   85.018936][ T6828] IPVS: ftp: loaded support on port[0] = 21
executing program
[   86.116214][ T6851] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
[   86.127968][ T6851] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
[   86.136384][ T6851] CPU: 0 PID: 6851 Comm: kworker/u5:1 Not tainted 5.8.0-rc7-syzkaller #0
[   86.144796][ T6851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   86.156166][ T6851] Workqueue: hci0 hci_rx_work
[   86.160861][ T6851] RIP: 0010:hci_phy_link_complete_evt.isra.0+0x23e/0x790
[   86.167913][ T6851] Code: 48 c1 ea 03 80 3c 02 00 0f 85 3e 05 00 00 48 8b 9d 30 09 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 da 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
[   86.187527][ T6851] RSP: 0018:ffffc90001877a38 EFLAGS: 00010202
[   86.193600][ T6851] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff871af0e3
[   86.201674][ T6851] RDX: 0000000000000002 RSI: ffffffff871af0f0 RDI: 0000000000000010
[   86.210163][ T6851] RBP: ffff8880a13ee000 R08: 0000000000000001 R09: ffff8880a1bc0ac8
[   86.218129][ T6851] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
[   86.226092][ T6851] R13: ffff8880a2029110 R14: ffff88809891240b R15: 00000000000000c8
[   86.234147][ T6851] FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[   86.243882][ T6851] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.258638][ T6851] CR2: 000055b0894794c7 CR3: 000000009f23d000 CR4: 00000000001406f0
[   86.266623][ T6851] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   86.274587][ T6851] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   86.283678][ T6851] Call Trace:
[   86.286992][ T6851]  hci_event_packet+0x481a/0x86f5
[   86.292027][ T6851]  ? lockdep_hardirqs_on_prepare+0x590/0x590
[   86.298028][ T6851]  ? __lock_acquire+0x16e3/0x56e0
[   86.303064][ T6851]  ? hci_cmd_complete_evt+0xc6e0/0xc6e0
[   86.308604][ T6851]  ? lock_acquire+0x1f1/0xad0
[   86.313281][ T6851]  ? skb_dequeue+0x1c/0x180
[   86.317784][ T6851]  ? find_held_lock+0x2d/0x110
[   86.322546][ T6851]  ? mark_lock+0xbc/0x1710
[   86.326971][ T6851]  ? mark_held_locks+0x9f/0xe0
[   86.331744][ T6851]  ? _raw_spin_unlock_irqrestore+0x62/0xe0
[   86.337570][ T6851]  ? lockdep_hardirqs_on_prepare+0x3a2/0x590
[   86.343540][ T6851]  ? trace_hardirqs_on+0x5f/0x220
[   86.349082][ T6851]  ? lockdep_hardirqs_on+0x6a/0xe0
[   86.354236][ T6851]  hci_rx_work+0x22e/0xb10
[   86.358659][ T6851]  process_one_work+0x94c/0x1670
[   86.363609][ T6851]  ? lock_release+0x8d0/0x8d0
[   86.368285][ T6851]  ? pwq_dec_nr_in_flight+0x2d0/0x2d0
[   86.374721][ T6851]  ? rwlock_bug.part.0+0x90/0x90
[   86.379654][ T6851]  ? lockdep_hardirqs_off+0x66/0xa0
[   86.384882][ T6851]  worker_thread+0x64c/0x1120
[   86.389570][ T6851]  ? process_one_work+0x1670/0x1670
[   86.394782][ T6851]  kthread+0x3b5/0x4a0
[   86.398862][ T6851]  ? __kthread_bind_mask+0xc0/0xc0
[   86.403989][ T6851]  ? __kthread_bind_mask+0xc0/0xc0
[   86.409624][ T6851]  ret_from_fork+0x1f/0x30
[   86.414124][ T6851] Modules linked in:
[   86.419365][ T6851] ---[ end trace b29aadf9690b6246 ]---
[   86.424985][ T6851] RIP: 0010:hci_phy_link_complete_evt.isra.0+0x23e/0x790
[   86.432009][ T6851] Code: 48 c1 ea 03 80 3c 02 00 0f 85 3e 05 00 00 48 8b 9d 30 09 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 da 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
[   86.453201][ T6851] RSP: 0018:ffffc90001877a38 EFLAGS: 00010202
[   86.459398][ T6851] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff871af0e3
[   86.467604][ T6851] RDX: 0000000000000002 RSI: ffffffff871af0f0 RDI: 0000000000000010
[   86.475751][ T6851] RBP: ffff8880a13ee000 R08: 0000000000000001 R09: ffff8880a1bc0ac8
[   86.483730][ T6851] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
[   86.491951][ T6851] R13: ffff8880a2029110 R14: ffff88809891240b R15: 00000000000000c8
[   86.500088][ T6851] FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[   86.509218][ T6851] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   86.515984][ T6851] CR2: 000055b0894794c7 CR3: 00000000a08af000 CR4: 00000000001406f0
[   86.524008][ T6851] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   86.532220][ T6851] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   86.540363][ T6851] Kernel panic - not syncing: Fatal exception
[   86.547481][ T6851] Kernel Offset: disabled
[   86.551849][ T6851] Rebooting in 86400 seconds..