R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc106f1d6d4
R13: 00000000004c06d9 R14: 00000000004d2370 R15: 0000000000000004
kasan: CONFIG_KASAN_INLINE enabled
Bluetooth: Can't allocate HCI device
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
kobject: 'loop2' (000000003fc5a073): fill_kobj_path: path = '/devices/virtual/block/loop2'
CPU: 1 PID: 2980 Comm: kworker/1:2 Not tainted 5.0.0-rc6+ #70
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events hci_uart_write_work
kobject: 'kvm' (00000000a29d0775): kobject_uevent_env
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 5e 72 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:ffff88809ebcfcb0 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
kobject: 'kvm' (00000000a29d0775): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RBP: ffff88809ebcfd30 R08: ffff88809eb1c5c0 R09: ffff88809eb1ce88
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808af71e00
R13: ffff8880556e4d40 R14: ffff888052c3d628 R15: ffff88808af71e70
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d7b78 CR3: 00000000962b8000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop4' (000000004b05e63c): kobject_uevent_env
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: 'loop4' (000000004b05e63c): fill_kobj_path: path = '/devices/virtual/block/loop4'
---[ end trace d89866fe0ef4c16c ]---
kobject: '(null)' (000000002c41cc61): kobject_cleanup, parent           (null)
RIP: 0010:hci_uart_write_work+0x1b6/0x710 drivers/bluetooth/hci_ldisc.c:180
kobject: 'loop3' (00000000d96605a8): kobject_uevent_env
kobject: '(null)' (000000002c41cc61): calling ktype release
kobject: 'loop3' (00000000d96605a8): fill_kobj_path: path = '/devices/virtual/block/loop3'
Code: 0f 85 6a 04 00 00 49 8b b4 24 c8 00 00 00 4c 89 ef e8 5e 72 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' (000000007f13119c): kobject_uevent_env
kobject: 'loop5' (000000007f13119c): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (000000004b05e63c): kobject_uevent_env
RSP: 0018:ffff88809ebcfcb0 EFLAGS: 00010203
kobject: 'loop4' (000000004b05e63c): fill_kobj_path: path = '/devices/virtual/block/loop4'
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
kobject: 'loop2' (000000003fc5a073): kobject_uevent_env
kobject: 'loop2' (000000003fc5a073): fill_kobj_path: path = '/devices/virtual/block/loop2'
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
kobject: 'loop5' (000000007f13119c): kobject_uevent_env
RBP: ffff88809ebcfd30 R08: ffff88809eb1c5c0 R09: ffff88809eb1ce88
kobject: 'loop5' (000000007f13119c): fill_kobj_path: path = '/devices/virtual/block/loop5'
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808af71e00
R13: ffff8880556e4d40 R14: ffff888052c3d628 R15: ffff88808af71e70
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000070a158 CR3: 000000008d944000 CR4: 00000000001426e0
kobject: '(null)' (0000000019ff3b43): kobject_cleanup, parent           (null)
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: '(null)' (0000000019ff3b43): calling ktype release
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400