general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 17456 Comm: kworker/0:2 Not tainted 5.0.0-rc7 #77
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events hci_uart_write_work
RIP: 0010:hci_uart_write_work+0x1b6/0x710 drivers/bluetooth/hci_ldisc.c:180
Code: 0f 85 6a 04 00 00 49 8b b4 24 c8 00 00 00 4c 89 ef e8 fe 70 53 02 89 c6 48 8b 45 d0 48 8d b8 5c 10 00 00 48 89 f8 48 c1 e8 03 <0f> b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1d
RSP: 0018:ffff88804f877cb0 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
RBP: ffff88804f877d30 R08: ffff88808c470480 R09: ffff88808c470d48
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880927f1800
R13: ffff888051668940 R14: ffff88809f609aa8 R15: ffff8880927f1870
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2635837000 CR3: 00000000a48cd000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173
 worker_thread+0x98/0xe40 kernel/workqueue.c:2319
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
kobject: 'loop5' (00000000bcac7648): kobject_uevent_env
kobject: 'loop5' (00000000bcac7648): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (000000006f622966): kobject_uevent_env
kobject: 'loop1' (000000006f622966): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000181a4acc): kobject_uevent_env
kobject: 'loop4' (00000000181a4acc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (00000000bcac7648): kobject_uevent_env
kobject: 'loop5' (00000000bcac7648): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (000000004b156a1a): kobject_uevent_env
kobject: 'loop0' (000000004b156a1a): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000ead5b122): kobject_uevent_env
kobject: 'loop2' (00000000ead5b122): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000181a4acc): kobject_uevent_env
kobject: 'loop4' (00000000181a4acc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000ead5b122): kobject_uevent_env
kobject: 'loop2' (00000000ead5b122): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (000000004b156a1a): kobject_uevent_env
kobject: 'loop0' (000000004b156a1a): fill_kobj_path: path = '/devices/virtual/block/loop0'
---[ end trace b9018e2fd2a0c07b ]---
RIP: 0010:hci_uart_write_work+0x1b6/0x710 drivers/bluetooth/hci_ldisc.c:180
Code: 0f 85 6a 04 00 00 49 8b b4 24 c8 00 00 00 4c 89 ef e8 fe 70 53 02 89 c6 48 8b 45 d0 48 8d b8 5c 10 00 00 48 89 f8 48 c1 e8 03 <0f> b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1d
kobject: 'loop5' (00000000bcac7648): kobject_uevent_env
RSP: 0018:ffff88804f877cb0 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
RBP: ffff88804f877d30 R08: ffff88808c470480 R09: ffff88808c470d48
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880927f1800
R13: ffff888051668940 R14: ffff88809f609aa8 R15: ffff8880927f1870
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000ae0fd0 CR3: 000000009650f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400