------------[ cut here ]------------
WARNING: CPU: 1 PID: 11936 at fs/kernfs/dir.c:493 kernfs_get.part.0.cold+0x11/0x18 /fs/kernfs/dir.c:493
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 11936 Comm: syz-executor.4 Not tainted 5.2.0+ #63
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+0x2dc/0x755 /kernel/panic.c:219
 __warn.cold+0x20/0x4c /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:1008
RIP: 0010:kernfs_get.part.0.cold+0x11/0x18 /fs/kernfs/dir.c:493
Code: ff e8 7c 5a 97 ff 48 c7 c7 40 75 99 87 e8 64 fd 80 ff 0f 0b e9 45 a8 ff ff e8 64 5a 97 ff 48 c7 c7 40 75 99 87 e8 4c fd 80 ff <0f> 0b e9 69 ac ff ff e8 4c 5a 97 ff 48 c7 c7 40 75 99 87 e8 34 fd
RSP: 0018:ffff888052b97808 EFLAGS: 00010286
RAX: 0000000000000024 RBX: ffff88808b55b9a0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815c3a26 RDI: ffffed100a572ef3
RBP: ffff888052b97818 R08: 0000000000000024 R09: ffffed1015d260b1
R10: ffffed1015d260b0 R11: ffff8880ae930587 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88821b6a9540
 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+0x136/0x290 /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+0x2e8/0x8f0 /net/bluetooth/hci_core.c:3307
 __vhci_create_device+0x2c5/0x5d0 /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:1870 [inline]
 new_sync_write+0x4d3/0x770 /fs/read_write.c:483
 __vfs_write+0xe1/0x110 /fs/read_write.c:496
 vfs_write+0x268/0x5d0 /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]
 __ia32_sys_write+0x71/0xb0 /fs/read_write.c:620
 do_syscall_32_irqs_on /arch/x86/entry/common.c:332 [inline]
 do_fast_syscall_32+0x27b/0xdb3 /arch/x86/entry/common.c:403
 entry_SYSENTER_compat+0x70/0x7f /arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f129c9
Code: d3 83 c4 10 5b 5e 5d c3 ba 80 96 98 00 eb a9 8b 04 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f5d0e0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000000
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..