Oops: general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
CPU: 1 UID: 0 PID: 8886 Comm: syz.2.755 Not tainted 6.14.0-syzkaller-05877-g1a9239bb4253 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:sysfs_move_dir_ns+0xad/0xe0 fs/sysfs/dir.c:126
Code: 9a 48 c1 e8 03 42 80 3c 28 00 74 0c 48 c7 c7 c0 5e 7c 9a e8 55 cf c0 ff 48 8b 1d fe 80 11 18 49 8d 7f 38 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 37 cf c0 ff 49 8b 57 38 4c 89 ff 48 89 de
RSP: 0018:ffffc900040c75b0 EFLAGS: 00010202
RAX: 0000000000000007 RBX: ffff888143e9e870 RCX: ffff888029149e00
RDX: 0000000000000000 RSI: ffff888143e91480 RDI: 0000000000000038
RBP: ffffc900040c76a8 R08: ffffffff8c2002dc R09: ffffffff8c1ff320
R10: 0000000000000008 R11: ffff888029149e00 R12: ffff888143e914b0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881250ea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f739f779e80 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kobject_move+0x359/0x480 lib/kobject.c:569
 device_move+0xdf/0x710 drivers/base/core.c:4583
 hci_conn_del_sysfs+0xb5/0x170 net/bluetooth/hci_sysfs.c:75
 hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
 hci_conn_del+0x8d5/0xc50 net/bluetooth/hci_conn.c:1167
 hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2702
 hci_dev_close_sync+0xa8d/0x1260 net/bluetooth/hci_sync.c:5225
 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
 hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2678
 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:665
 __fput+0x3e9/0x9f0 fs/file_table.c:465
 task_work_run+0x251/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2a/0x2940 kernel/exit.c:954
 do_group_exit+0x207/0x2c0 kernel/exit.c:1103
 get_signal+0x1696/0x1730 kernel/signal.c:3035
 arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbba558d169
Code: Unable to access opcode bytes at 0x7fbba558d13f.
RSP: 002b:00007fbba6487038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000024 RBX: 00007fbba57a5fa0 RCX: 00007fbba558d169
RDX: 0000000000040044 RSI: 0000200000000180 RDI: 0000000000000003
RBP: 00007fbba560e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbba57a5fa0 R15: 00007ffe7c056968
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:sysfs_move_dir_ns+0xad/0xe0 fs/sysfs/dir.c:126
Code: 9a 48 c1 e8 03 42 80 3c 28 00 74 0c 48 c7 c7 c0 5e 7c 9a e8 55 cf c0 ff 48 8b 1d fe 80 11 18 49 8d 7f 38 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 37 cf c0 ff 49 8b 57 38 4c 89 ff 48 89 de
RSP: 0018:ffffc900040c75b0 EFLAGS: 00010202
RAX: 0000000000000007 RBX: ffff888143e9e870 RCX: ffff888029149e00
RDX: 0000000000000000 RSI: ffff888143e91480 RDI: 0000000000000038
RBP: ffffc900040c76a8 R08: ffffffff8c2002dc R09: ffffffff8c1ff320
R10: 0000000000000008 R11: ffff888029149e00 R12: ffff888143e914b0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881250ea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f739f779e80 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 c1 e8 03          	shr    $0x3,%rax
   4:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
   9:	74 0c                	je     0x17
   b:	48 c7 c7 c0 5e 7c 9a 	mov    $0xffffffff9a7c5ec0,%rdi
  12:	e8 55 cf c0 ff       	call   0xffc0cf6c
  17:	48 8b 1d fe 80 11 18 	mov    0x181180fe(%rip),%rbx        # 0x1811811c
  1e:	49 8d 7f 38          	lea    0x38(%r15),%rdi
  22:	48 89 f8             	mov    %rdi,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2e:	74 05                	je     0x35
  30:	e8 37 cf c0 ff       	call   0xffc0cf6c
  35:	49 8b 57 38          	mov    0x38(%r15),%rdx
  39:	4c 89 ff             	mov    %r15,%rdi
  3c:	48 89 de             	mov    %rbx,%rsi