------------[ cut here ]------------ kobject: 'hci2' (ffff8880992ee068): kobject_add_internal: parent: 'bluetooth', set: 'devices' WARNING: CPU: 1 PID: 7693 at fs/kernfs/dir.c:494 kernfs_get+0x58/0x70 fs/kernfs/dir.c:494 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7693 Comm: syz-executor681 Not tainted 4.14.113 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x19c lib/dump_stack.c:53 kobject: 'hci4' (ffff8880995ea0a8): kobject_add_internal: parent: 'bluetooth', set: 'devices' panic+0x1f2/0x438 kernel/panic.c:182 kobject: 'hci4' (ffff8880995ea0a8): kobject_uevent_env __warn.cold+0x2f/0x34 kernel/panic.c:546 report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 kobject: 'rfkill595' (ffff888098963368): kobject_uevent_env kobject: 'hci2' (ffff8880992ee068): kobject_uevent_env do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:944 RIP: 0010:kernfs_get+0x58/0x70 fs/kernfs/dir.c:494 kobject: 'rfkill595' (ffff888098963368): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill595' RSP: 0018:ffff888099017978 EFLAGS: 00010297 RAX: ffff888095d086c0 RBX: ffff8880923ccc40 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880923ccc40 RBP: ffff888099017980 R08: ffff888095d086c0 R09: 0000000000000001 R10: 0000000000000000 R11: ffff888095d086c0 R12: ffff888090f748c0 R13: ffff88809962e1c0 R14: 0000000000000001 R15: 00000000000041ed kobject: 'hci2' (ffff8880992ee068): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kernfs_new_node+0x95/0xf0 fs/kernfs/dir.c:681 kernfs_create_dir_ns+0x41/0x140 fs/kernfs/dir.c:1000 sysfs_create_dir_ns+0xbe/0x1d0 fs/sysfs/dir.c:55 create_dir lib/kobject.c:71 [inline] kobject_add_internal.part.0.cold+0x114/0x5b1 lib/kobject.c:229 kobject_add_internal lib/kobject.c:205 [inline] kobject_add_varg lib/kobject.c:364 [inline] kobject_add+0x11f/0x180 lib/kobject.c:409 kobject: 'rfkill595' (ffff888098963368): kobject_cleanup, parent (null) device_add+0x383/0x1490 drivers/base/core.c:1809 kobject: 'hci4' (ffff8880995ea0a8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' hci_register_dev+0x2d9/0x810 net/bluetooth/hci_core.c:3118 kobject: 'rfkill595' (ffff888098963368): calling ktype release __vhci_create_device+0x2a6/0x560 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+0x2a1/0x437 drivers/bluetooth/hci_vhci.c:299 call_write_iter include/linux/fs.h:1774 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x4ae/0x6c0 fs/read_write.c:482 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xb8/0x180 fs/read_write.c:581 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 kobject: 'rfkill596' (ffff8880976145a8): kobject_add_internal: parent: 'hci4', set: 'devices' entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x441269 RSP: 002b:00007ffe5fa564b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441269 RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 kobject: 'rfkill596' (ffff8880976145a8): kobject_uevent_env RBP: 0000000000012956 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fe0 R13: 0000000000402070 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..