WARNING: CPU: 1 PID: 9210 at fs/kernfs/dir.c:493 kernfs_get.part.0+0x73/0x90 fs/kernfs/dir.c:493 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9210 Comm: syz-executor187 Not tainted 5.2.0-rc6+ #41 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/0x744 kernel/panic.c:219 __warn.cold+0x20/0x4d kernel/panic.c:576 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986 RIP: 0010:kernfs_get.part.0+0x73/0x90 fs/kernfs/dir.c:493 Code: e6 e8 31 9b 99 ff 45 85 e4 74 1a e8 a7 99 99 ff be 04 00 00 00 48 89 df e8 1a 20 d2 ff f0 ff 03 5b 41 5c 5d c3 e8 8d 99 99 ff <0f> 0b eb dd 48 89 df e8 f1 45 d2 ff eb c1 0f 1f 44 00 00 66 2e 0f RSP: 0018:ffff88809294f818 EFLAGS: 00010293 RAX: ffff888089bc46c0 RBX: ffff8880a44c97e0 RCX: ffffffff81d7277f RDX: 0000000000000000 RSI: ffffffff81d727a3 RDI: 0000000000000005 RBP: ffff88809294f828 R08: ffff888089bc46c0 R09: ffffed10148992fd R10: ffffed10148992fc R11: ffff8880a44c97e3 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88821b6f0ee0 kernfs_get fs/kernfs/dir.c:492 [inline] kernfs_new_node+0xb6/0x120 fs/kernfs/dir.c:700 kernfs_create_dir_ns+0x52/0x160 fs/kernfs/dir.c:1022 sysfs_create_dir_ns+0x131/0x2a0 fs/sysfs/dir.c:59 create_dir lib/kobject.c:89 [inline] kobject_add_internal lib/kobject.c:255 [inline] kobject_add_internal.cold+0x116/0x662 lib/kobject.c:225 kobject_add_varg lib/kobject.c:390 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:442 device_add+0x3b7/0x17a0 drivers/base/core.c:2062 hci_register_dev+0x2e8/0x860 net/bluetooth/hci_core.c:3305 __vhci_create_device+0x2d0/0x5a0 drivers/bluetooth/hci_vhci.c:124 vhci_create_device drivers/bluetooth/hci_vhci.c:148 [inline] vhci_get_user drivers/bluetooth/hci_vhci.c:204 [inline] vhci_write+0x2d0/0x470 drivers/bluetooth/hci_vhci.c:284 call_write_iter include/linux/fs.h:1872 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x20c/0x580 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aaf9 Code: e8 dc e6 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 4b ca fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f90555a2db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 000000000044aaf9 RDX: 0000000000000002 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc2c R13: 00007ffe5b58e38f R14: 00007f90555a39c0 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..