Oops: stack segment: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 9889 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:kernfs_rename_ns+0x3a/0x930 fs/kernfs/dir.c:1828
Code: ec 40 48 89 cb 48 89 54 24 08 49 89 f5 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 e1 76 4e ff 4d 8d 66 30 4c 89 e5 48 c1 ed 03 <42> 80 7c 3d 00 00 74 08 4c 89 e7 e8 36 40 be ff 49 83 3c 24 00 0f
RSP: 0018:ffffc9000e537608 EFLAGS: 00010206
RAX: ffffffff8279443f RBX: 0000000000000000 RCX: ffff88802fe98000
RDX: 0000000000000000 RSI: ffff888022acf4b0 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff88802fe98000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000030
R13: ffff888022acf4b0 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888124cd9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e98627dac CR3: 0000000046e0e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kobject_move+0x560/0x720 lib/kobject.c:569
 device_move+0xe0/0x720 drivers/base/core.c:4693
 hci_conn_del_sysfs+0xb8/0x1a0 net/bluetooth/hci_sysfs.c:75
 hci_conn_cleanup net/bluetooth/hci_conn.c:170 [inline]
 hci_conn_del+0xc3d/0x1200 net/bluetooth/hci_conn.c:1318
 hci_conn_hash_flush+0x189/0x260 net/bluetooth/hci_conn.c:2747
 hci_dev_close_sync+0x7fc/0x10c0 net/bluetooth/hci_sync.c:5593
 hci_dev_do_close net/bluetooth/hci_core.c:502 [inline]
 hci_unregister_dev+0x232/0x5b0 net/bluetooth/hci_core.c:2681
 vhci_release+0x16d/0x1c0 drivers/bluetooth/hci_vhci.c:700
 __fput+0x418/0xa50 fs/file_table.c:512
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x73a/0x2360 kernel/exit.c:1008
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1151
 get_signal+0x121b/0x12c0 kernel/signal.c:3039
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
 do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5a96f5e98e
Code: Unable to access opcode bytes at 0x7f5a96f5e964.
RSP: 002b:00007ffd19062f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000000040 RBX: 000055558e0c9500 RCX: 00007f5a96f5e98e
RDX: 0000000000000040 RSI: 00007f5a97d54670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffd19062fb4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f5a97d54670 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kernfs_rename_ns+0x3a/0x930 fs/kernfs/dir.c:1828
Code: ec 40 48 89 cb 48 89 54 24 08 49 89 f5 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 e1 76 4e ff 4d 8d 66 30 4c 89 e5 48 c1 ed 03 <42> 80 7c 3d 00 00 74 08 4c 89 e7 e8 36 40 be ff 49 83 3c 24 00 0f
RSP: 0018:ffffc9000e537608 EFLAGS: 00010206
RAX: ffffffff8279443f RBX: 0000000000000000 RCX: ffff88802fe98000
RDX: 0000000000000000 RSI: ffff888022acf4b0 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff88802fe98000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000030
R13: ffff888022acf4b0 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888124cd9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000000c0 CR3: 000000007a82e000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	ec                   	in     (%dx),%al
   1:	40                   	rex
   2:	48 89 cb             	mov    %rcx,%rbx
   5:	48 89 54 24 08       	mov    %rdx,0x8(%rsp)
   a:	49 89 f5             	mov    %rsi,%r13
   d:	49 89 fe             	mov    %rdi,%r14
  10:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  17:	fc ff df
  1a:	e8 e1 76 4e ff       	call   0xff4e7700
  1f:	4d 8d 66 30          	lea    0x30(%r14),%r12
  23:	4c 89 e5             	mov    %r12,%rbp
  26:	48 c1 ed 03          	shr    $0x3,%rbp
* 2a:	42 80 7c 3d 00 00    	cmpb   $0x0,0x0(%rbp,%r15,1) <-- trapping instruction
  30:	74 08                	je     0x3a
  32:	4c 89 e7             	mov    %r12,%rdi
  35:	e8 36 40 be ff       	call   0xffbe4070
  3a:	49 83 3c 24 00       	cmpq   $0x0,(%r12)
  3f:	0f                   	.byte 0xf