Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 1 UID: 0 PID: 7170 Comm: syz-executor Not tainted 6.15.0-rc2-syzkaller-00577-g8066e388be48 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:kernfs_rename_ns+0x39/0x800 fs/kernfs/dir.c:1744
Code: 83 ec 38 49 89 cf 48 89 14 24 48 89 f3 49 89 fd 48 bd 00 00 00 00 00 fc ff df e8 82 d7 56 ff 4d 8d 65 30 4d 89 e6 49 c1 ee 03 <41> 80 3c 2e 00 74 08 4c 89 e7 e8 e8 16 c1 ff 49 83 3c 24 00 0f 84
RSP: 0018:ffffc90003dc77d0 EFLAGS: 00010206
RAX: ffffffff826be33e RBX: ffff8881446e8c30 RCX: ffff888028060000
RDX: 0000000000000000 RSI: ffff8881446e8c30 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8c28755c R09: ffffffff8c2865a0
R10: 0000000000000008 R11: ffff888028060000 R12: 0000000000000030
R13: 0000000000000000 R14: 0000000000000006 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881250ab000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f894be50f98 CR3: 00000000629cc000 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+0xa11/0x27f0 kernel/exit.c:953
 do_group_exit+0x207/0x2c0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
 x64_sys_call+0x26c3/0x26d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f85ae58e169
Code: Unable to access opcode bytes at 0x7f85ae58e13f.
RSP: 002b:00007ffe1acd6748 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f85ae58e169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007f85ae5ee8d0 R08: 00007ffe1acd44e7 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000003 R14: 00000000ffffffff R15: 00007ffe1acd6900
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kernfs_rename_ns+0x39/0x800 fs/kernfs/dir.c:1744
Code: 83 ec 38 49 89 cf 48 89 14 24 48 89 f3 49 89 fd 48 bd 00 00 00 00 00 fc ff df e8 82 d7 56 ff 4d 8d 65 30 4d 89 e6 49 c1 ee 03 <41> 80 3c 2e 00 74 08 4c 89 e7 e8 e8 16 c1 ff 49 83 3c 24 00 0f 84
RSP: 0018:ffffc90003dc77d0 EFLAGS: 00010206
RAX: ffffffff826be33e RBX: ffff8881446e8c30 RCX: ffff888028060000
RDX: 0000000000000000 RSI: ffff8881446e8c30 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8c28755c R09: ffffffff8c2865a0
R10: 0000000000000008 R11: ffff888028060000 R12: 0000000000000030
R13: 0000000000000000 R14: 0000000000000006 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888124fab000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f894b17d2d8 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	83 ec 38             	sub    $0x38,%esp
   3:	49 89 cf             	mov    %rcx,%r15
   6:	48 89 14 24          	mov    %rdx,(%rsp)
   a:	48 89 f3             	mov    %rsi,%rbx
   d:	49 89 fd             	mov    %rdi,%r13
  10:	48 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%rbp
  17:	fc ff df
  1a:	e8 82 d7 56 ff       	call   0xff56d7a1
  1f:	4d 8d 65 30          	lea    0x30(%r13),%r12
  23:	4d 89 e6             	mov    %r12,%r14
  26:	49 c1 ee 03          	shr    $0x3,%r14
* 2a:	41 80 3c 2e 00       	cmpb   $0x0,(%r14,%rbp,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 e8 16 c1 ff       	call   0xffc11721
  39:	49 83 3c 24 00       	cmpq   $0x0,(%r12)
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84