WARNING: CPU: 0 PID: 18928 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 fs/kernfs/dir.c:494
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 18928 Comm: syz-executor.5 Not tainted 5.1.0-rc4+ #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+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 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:973
RIP: 0010:kernfs_get.part.0+0x73/0x90 fs/kernfs/dir.c:494
Code: e6 e8 d1 c9 9a ff 45 85 e4 74 1a e8 47 c8 9a ff be 04 00 00 00 48 89 df e8 ba a9 d2 ff f0 ff 03 5b 41 5c 5d c3 e8 2d c8 9a ff <0f> 0b eb dd 48 89 df e8 b1 cf d2 ff eb c1 0f 1f 44 00 00 66 2e 0f
RSP: 0018:ffff88805d207260 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff8880a81c1540 RCX: ffffc90010868000
RDX: 0000000000017e71 RSI: ffffffff81d5c6d3 RDI: 0000000000000005
RBP: ffff88805d207270 R08: ffff88805d3fe0c0 R09: ffffed10150382a9
R10: ffffed10150382a8 R11: ffff8880a81c1543 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
 kernfs_create_dir_ns+0x52/0x160 fs/kernfs/dir.c:1021
 sysfs_create_dir_ns+0x131/0x2a0 fs/sysfs/dir.c:59
 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
 device_add+0x3d5/0x18a0 drivers/base/core.c:2057
 hci_register_dev+0x2e8/0x860 net/bluetooth/hci_core.c:3307
 __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:1866 [inline]
 new_sync_write+0x4c7/0x760 fs/read_write.c:474
 __vfs_write+0xe4/0x110 fs/read_write.c:487
 __kernel_write+0x110/0x3b0 fs/read_write.c:506
 write_pipe_buf+0x15d/0x1f0 fs/splice.c:793
 splice_from_pipe_feed fs/splice.c:499 [inline]
 __splice_from_pipe+0x395/0x7d0 fs/splice.c:623
 splice_from_pipe+0x108/0x170 fs/splice.c:658
 default_file_splice_write+0x3c/0x90 fs/splice.c:805
 do_splice_from fs/splice.c:847 [inline]
 direct_splice_actor+0x126/0x1a0 fs/splice.c:1019
 splice_direct_to_actor+0x369/0x970 fs/splice.c:974
 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062
 do_sendfile+0x597/0xd00 fs/read_write.c:1443
 __do_sys_sendfile64 fs/read_write.c:1498 [inline]
 __se_sys_sendfile64 fs/read_write.c:1490 [inline]
 __x64_sys_sendfile64+0x15a/0x220 fs/read_write.c:1490
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4582f9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fc228bcac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9
RDX: 0000000020000140 RSI: 0000000000000005 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 00007fc228bcb6d4
R13: 00000000004c5267 R14: 00000000004d93a8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..