Oops: stack segment: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 7448 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:kernfs_rename_ns+0x3a/0x7a0 fs/kernfs/dir.c:1747
Code: ec 48 48 89 cb 48 89 54 24 10 49 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 f1 0d 5f ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 66 cf c4 ff 49 83 3f 00 0f 84
RSP: 0018:ffffc900047277c0 EFLAGS: 00010206
RAX: ffffffff8260f5cf RBX: 0000000000000000 RCX: ffff8880328f3c80
RDX: 0000000000000000 RSI: ffff8880206eb690 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff8880328f3c80 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880206eb690 R14: 0000000000000000 R15: 0000000000000030
FS:  0000000000000000(0000) GS:ffff888126235000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000570 CR3: 00000000697be000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kobject_move+0x3a5/0x4f0 lib/kobject.c:569
 device_move+0xe0/0x700 drivers/base/core.c:4606
 hci_conn_del_sysfs+0xb8/0x170 net/bluetooth/hci_sysfs.c:75
 hci_conn_cleanup net/bluetooth/hci_conn.c:173 [inline]
 hci_conn_del+0xc33/0x11b0 net/bluetooth/hci_conn.c:1222
 hci_conn_hash_flush+0x191/0x230 net/bluetooth/hci_conn.c:2615
 hci_dev_close_sync+0xaef/0x1330 net/bluetooth/hci_sync.c:5308
 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]
 hci_unregister_dev+0x21a/0x510 net/bluetooth/hci_core.c:2715
 vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x44c/0xa70 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:966
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 __do_sys_exit_group kernel/exit.c:1118 [inline]
 __se_sys_exit_group kernel/exit.c:1116 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1116
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd7d898f749
Code: Unable to access opcode bytes at 0x7fd7d898f71f.
RSP: 002b:00007ffe3b81bb78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd7d898f749
RDX: 00007fd7d8985e93 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000007
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000927c0 R14: 00000000000a127e R15: 00007ffe3b81c8b0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kernfs_rename_ns+0x3a/0x7a0 fs/kernfs/dir.c:1747
Code: ec 48 48 89 cb 48 89 54 24 10 49 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 f1 0d 5f ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 66 cf c4 ff 49 83 3f 00 0f 84
RSP: 0018:ffffc900047277c0 EFLAGS: 00010206
RAX: ffffffff8260f5cf RBX: 0000000000000000 RCX: ffff8880328f3c80
RDX: 0000000000000000 RSI: ffff8880206eb690 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff8880328f3c80 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880206eb690 R14: 0000000000000000 R15: 0000000000000030
FS:  0000000000000000(0000) GS:ffff888126235000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558706316000 CR3: 000000000dd38000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	ec                   	in     (%dx),%al
   1:	48                   	rex.W
   2:	48 89 cb             	mov    %rcx,%rbx
   5:	48 89 54 24 10       	mov    %rdx,0x10(%rsp)
   a:	49 89 f5             	mov    %rsi,%r13
   d:	49 89 fe             	mov    %rdi,%r14
  10:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  17:	fc ff df
  1a:	e8 f1 0d 5f ff       	call   0xff5f0e10
  1f:	4d 8d 7e 30          	lea    0x30(%r14),%r15
  23:	4c 89 fd             	mov    %r15,%rbp
  26:	48 c1 ed 03          	shr    $0x3,%rbp
* 2a:	42 80 7c 25 00 00    	cmpb   $0x0,0x0(%rbp,%r12,1) <-- trapping instruction
  30:	74 08                	je     0x3a
  32:	4c 89 ff             	mov    %r15,%rdi
  35:	e8 66 cf c4 ff       	call   0xffc4cfa0
  3a:	49 83 3f 00          	cmpq   $0x0,(%r15)
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84