------------[ cut here ]------------ WARNING: CPU: 0 PID: 8957 at fs/kernfs/dir.c:494 kernfs_get+0x58/0x70 fs/kernfs/dir.c:494 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8957 Comm: syz-executor033 Not tainted 4.14.114 #4 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 panic+0x1f2/0x438 kernel/panic.c:182 kobject: 'bluetooth' (ffff88809394d480): kobject_add_internal: parent: 'virtual', set: '(null)' __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: 'hci2' (ffff888089d8e7a8): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci2' (ffff888089d8e7a8): 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 RSP: 0018:ffff888094b87460 EFLAGS: 00010297 RAX: ffff888076be6140 RBX: ffff8880a957aa80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880a957aa80 RBP: ffff888094b87468 R08: ffff888076be6140 R09: 0000000000000001 R10: 0000000000000000 R11: ffff888076be6140 R12: ffff88808800d380 R13: ffff8880a637de40 R14: 0000000000000001 R15: 00000000000041ed kobject: 'hci0' (ffff888089c66768): kobject_add_internal: parent: 'bluetooth', set: 'devices' 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 device_add+0x383/0x1490 drivers/base/core.c:1809 kobject: 'hci2' (ffff888089d8e7a8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' hci_register_dev+0x2d9/0x810 net/bluetooth/hci_core.c:3118 kobject: 'hci0' (ffff888089c66768): kobject_uevent_env __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 __kernel_write+0xfc/0x370 fs/read_write.c:501 write_pipe_buf+0x148/0x1c0 fs/splice.c:797 splice_from_pipe_feed fs/splice.c:502 [inline] __splice_from_pipe+0x351/0x790 fs/splice.c:626 kobject: 'hci0' (ffff888089c66768): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' splice_from_pipe+0xf0/0x150 fs/splice.c:661 default_file_splice_write+0x3c/0x80 fs/splice.c:809 do_splice_from fs/splice.c:851 [inline] direct_splice_actor+0x126/0x1a0 fs/splice.c:1018 splice_direct_to_actor+0x2a1/0x7b0 fs/splice.c:973 do_splice_direct+0x18d/0x230 fs/splice.c:1061 do_sendfile+0x4db/0xbd0 fs/read_write.c:1440 kobject: 'rfkill7' (ffff888083eaa5a8): kobject_add_internal: parent: 'hci2', set: 'devices' SYSC_sendfile64 fs/read_write.c:1501 [inline] SyS_sendfile64+0x102/0x110 fs/read_write.c:1487 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4469a9 RSP: 002b:00007f5bbf38bce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 00000000004469a9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00000000006dbc30 R08: 00007f5bbf38c700 R09: 0000000000000000 kobject: 'rfkill7' (ffff888083eaa5a8): kobject_uevent_env R10: 0000000000000002 R11: 0000000000000246 R12: 00000000006dbc3c R13: 00007fff4d0a6c7f R14: 00007f5bbf38c9c0 R15: 0000000000000001 Kernel Offset: disabled Rebooting in 86400 seconds..