kobject_add_internal failed for hci0 (error: -2 parent: bluetooth)
Bluetooth: Can't register HCI device
WARNING: CPU: 0 PID: 10848 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 fs/kernfs/dir.c:494
kobject: 'bluetooth' (000000009a8e7648): kobject_add_internal: parent: 'virtual', set: '(null)'
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 10848 Comm: syz-executor631 Not tainted 5.0.0-rc6+ #70
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
kobject: 'hci2' (00000000f90ee4a2): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'hci2' (00000000f90ee4a2): kobject_uevent_env
 __warn.cold+0x20/0x45 kernel/panic.c:571
kobject: 'hci0' (000000002348bd2f): kobject_add_internal: parent: 'bluetooth', set: 'devices'
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
kobject: 'hci0' (000000002348bd2f): kobject_uevent_env
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
kobject: 'hci0' (000000002348bd2f): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0'
RIP: 0010:kernfs_get.part.0+0x73/0x90 fs/kernfs/dir.c:494
Code: e6 e8 71 d0 9d ff 45 85 e4 74 1a e8 e7 ce 9d ff be 04 00 00 00 48 89 df e8 da a6 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 cd ce 9d ff <0f> 0b eb dd 48 89 df e8 01 cd d4 ff eb c1 0f 1f 44 00 00 66 2e 0f
RSP: 0018:ffff8880987bf840 EFLAGS: 00010293
RAX: ffff88809f8de340 RBX: ffff8880a9558e00 RCX: ffffffff81d2122f
kobject: 'hci2' (00000000f90ee4a2): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2'
RDX: 0000000000000000 RSI: ffffffff81d21253 RDI: 0000000000000005
RBP: ffff8880987bf850 R08: ffff88809f8de340 R09: ffffed10152ab1c1
R10: ffffed10152ab1c0 R11: ffff8880a9558e03 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
 kernfs_get fs/kernfs/dir.c:493 [inline]
 kernfs_new_node+0xb8/0x130 fs/kernfs/dir.c:698
kobject: 'rfkill2016' (00000000bfda5925): kobject_add_internal: parent: 'hci0', set: 'devices'
 kernfs_create_dir_ns+0x52/0x160 fs/kernfs/dir.c:1021
 sysfs_create_dir_ns+0x131/0x2a0 fs/sysfs/dir.c:59
kobject: 'rfkill2016' (00000000bfda5925): kobject_uevent_env
 create_dir lib/kobject.c:88 [inline]
 kobject_add_internal lib/kobject.c:247 [inline]
 kobject_add_internal.cold+0xe5/0x5d4 lib/kobject.c:217
 kobject_add_varg lib/kobject.c:382 [inline]
 kobject_add+0x150/0x1c0 lib/kobject.c:426
kobject: 'rfkill2016' (00000000bfda5925): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill2016'
 device_add+0x3d5/0x1870 drivers/base/core.c:1912
kobject: 'rfkill2017' (0000000089cfb9c4): kobject_add_internal: parent: 'hci2', set: 'devices'
kobject: 'rfkill2016' (00000000bfda5925): kobject_uevent_env
 hci_register_dev+0x304/0x880 net/bluetooth/hci_core.c:3261
 __vhci_create_device+0x2d0/0x5a0 drivers/bluetooth/hci_vhci.c:139
 vhci_create_device drivers/bluetooth/hci_vhci.c:163 [inline]
 vhci_get_user drivers/bluetooth/hci_vhci.c:219 [inline]
 vhci_write+0x2d0/0x470 drivers/bluetooth/hci_vhci.c:299
 call_write_iter include/linux/fs.h:1863 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x613/0x8e0 fs/read_write.c:487
kobject: 'rfkill2016' (00000000bfda5925): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill2016'
kobject: 'rfkill2017' (0000000089cfb9c4): kobject_uevent_env
 vfs_write+0x20c/0x580 fs/read_write.c:549
 ksys_write+0xea/0x1f0 fs/read_write.c:598
kobject: 'rfkill2017' (0000000089cfb9c4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill2017'
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4463c9
kobject: 'rfkill2016' (00000000bfda5925): kobject_cleanup, parent           (null)
Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3b99deddb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000006dac28 RCX: 00000000004463c9
RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac2c
R13: 00007fff3d227d8f R14: 00007f3b99dee9c0 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..