Bluetooth: hci0: command 0x1009 tx timeout
Bluetooth: hci5: command 0x1009 tx timeout
Bluetooth: hci4: command 0x1009 tx timeout
Bluetooth: hci1: command 0x1009 tx timeout
Bluetooth: hci0: Frame reassembly failed (-84)
BUG: unable to handle kernel paging request at ffffffffffffffd6
#PF error: [normal kernel read fault]
PGD 9874067 P4D 9874067 PUD 9876067 PMD 0 
kobject: 'hci1' (00000000912e8427): kobject_add_internal: parent: 'bluetooth', set: 'devices'
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.20.0-next-20190102 #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
kobject: 'hci2' (00000000dbb71fdc): kobject_add_internal: parent: 'bluetooth', set: 'devices'
RIP: 0010:h4_recv_buf+0x1ea/0xda0 drivers/bluetooth/hci_h4.c:211
Code: b6 14 10 48 89 c8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 d7 0a 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 45 d0 4c 8d 60 70 <0f> b7 58 2a 4c 89 e0 48 c1 e8 03 0f b6 04 10 84 c0 74 08 3c 03 0f
RSP: 0018:ffff8880a94676c0 EFLAGS: 00010246
RAX: ffffffffffffffac RBX: 0000000000000000 RCX: ffffffffffffffd6
RDX: dffffc0000000000 RSI: ffffffff8589f412 RDI: 0000000000000005
RBP: ffff8880a9467748 R08: ffff8880a94581c0 R09: 0000000000000003
kobject: 'hci2' (00000000dbb71fdc): kobject_uevent_env
R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: 000000000000001c
R13: ffff8880a574f300 R14: ffff888091316da0 R15: 0000000000000006
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000009de33000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 h4_recv+0xe4/0x200 drivers/bluetooth/hci_h4.c:131
 hci_uart_tty_receive+0x22b/0x530 drivers/bluetooth/hci_ldisc.c:607
 tty_ldisc_receive_buf+0x164/0x1c0 drivers/tty/tty_buffer.c:465
kobject: 'hci1' (00000000912e8427): kobject_uevent_env
 tty_port_default_receive_buf+0x114/0x190 drivers/tty/tty_port.c:38
 receive_buf drivers/tty/tty_buffer.c:481 [inline]
 flush_to_ldisc+0x3b2/0x590 drivers/tty/tty_buffer.c:533
 process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
kobject: 'hci2' (00000000dbb71fdc): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2'
kobject: 'hci1' (00000000912e8427): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1'
kobject: 'rfkill12' (00000000769d5df7): kobject_add_internal: parent: 'hci1', set: 'devices'
 worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
kobject: 'rfkill12' (00000000769d5df7): kobject_uevent_env
kobject: 'rfkill12' (00000000769d5df7): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill12'
 kthread+0x357/0x430 kernel/kthread.c:246
kobject: 'rfkill13' (000000007e0d6b87): kobject_add_internal: parent: 'hci2', set: 'devices'
Bluetooth: hci1: Frame reassembly failed (-84)
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
CR2: ffffffffffffffd6
---[ end trace 9ff4a05b58704db1 ]---
RIP: 0010:h4_recv_buf+0x1ea/0xda0 drivers/bluetooth/hci_h4.c:211
Code: b6 14 10 48 89 c8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 d7 0a 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 45 d0 4c 8d 60 70 <0f> b7 58 2a 4c 89 e0 48 c1 e8 03 0f b6 04 10 84 c0 74 08 3c 03 0f
BUG: unable to handle kernel paging request at ffffffffffffffd6
RSP: 0018:ffff8880a94676c0 EFLAGS: 00010246
#PF error: [normal kernel read fault]
RAX: ffffffffffffffac RBX: 0000000000000000 RCX: ffffffffffffffd6
PGD 9874067 P4D 9874067 PUD 9876067 PMD 0 
RDX: dffffc0000000000 RSI: ffffffff8589f412 RDI: 0000000000000005
Oops: 0000 [#2] PREEMPT SMP KASAN
RBP: ffff8880a9467748 R08: ffff8880a94581c0 R09: 0000000000000003
CPU: 1 PID: 8006 Comm: syz-executor943 Tainted: G      D           4.20.0-next-20190102 #2
R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: 000000000000001c
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
R13: ffff8880a574f300 R14: ffff888091316da0 R15: 0000000000000006
RIP: 0010:h4_recv_buf+0x1ea/0xda0 drivers/bluetooth/hci_h4.c:211
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
Code: b6 14 10 48 89 c8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 d7 0a 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 45 d0 4c 8d 60 70 <0f> b7 58 2a 4c 89 e0 48 c1 e8 03 0f b6 04 10 84 c0 74 08 3c 03 0f
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RSP: 0018:ffff88808a81f8f0 EFLAGS: 00010246
CR2: ffffffffffffffd6 CR3: 000000009de33000 CR4: 00000000001406f0
RAX: ffffffffffffffac RBX: 0000000000000000 RCX: ffffffffffffffd6
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8589f412 RDI: 0000000000000005
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
RBP: ffff88808a81f978 R08: ffff888090c40500 R09: 0000000000000003