============================================
WARNING: possible recursive locking detected
6.16.0-rc2-syzkaller-00378-gb67ec639010f #0 Not tainted
--------------------------------------------
syz.3.207/7587 is trying to acquire lock:
ffff888058212d10 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ffff888058212d10 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: mi_read+0x2d4/0x5a0 fs/ntfs3/record.c:148

but task is already holding lock:
ffff888058063bc0 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ffff888058063bc0 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_rename+0x766/0xc60 fs/ntfs3/namei.c:312

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&ni->ni_lock#3/5);
  lock(&ni->ni_lock#3/5);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

6 locks held by syz.3.207/7587:
 #0: ffff888076b52428 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:557
 #1: ffff888058212850 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:914 [inline]
 #1: ffff888058212850 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: lock_rename fs/namei.c:3281 [inline]
 #1: ffff888058212850 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: do_renameat2+0x3dd/0xc50 fs/namei.c:5232
 #2: ffff888058063e58 (&sb->s_type->i_mutex_key#25/4){+.+.}-{4:4}, at: vfs_rename+0x69a/0xec0 fs/namei.c:5108
 #3: ffff8880582125b8 (&ni->ni_lock/6){+.+.}-{4:4}, at: ni_lock_dir fs/ntfs3/ntfs_fs.h:1105 [inline]
 #3: ffff8880582125b8 (&ni->ni_lock/6){+.+.}-{4:4}, at: ntfs_rename+0x74d/0xc60 fs/ntfs3/namei.c:311
 #4: ffff888058063bc0 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
 #4: ffff888058063bc0 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_rename+0x766/0xc60 fs/ntfs3/namei.c:312
 #5: ffff888076b54128 (&wnd->rw_lock/1){+.+.}-{4:4}, at: ntfs_look_free_mft+0x163/0xd50 fs/ntfs3/fsntfs.c:571

stack backtrace:
CPU: 0 UID: 0 PID: 7587 Comm: syz.3.207 Not tainted 6.16.0-rc2-syzkaller-00378-gb67ec639010f #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_deadlock_bug+0x28b/0x2a0 kernel/locking/lockdep.c:3044
 check_deadlock kernel/locking/lockdep.c:3096 [inline]
 validate_chain+0x1a3f/0x2140 kernel/locking/lockdep.c:3898
 __lock_acquire+0xab9/0xd20 kernel/locking/lockdep.c:5240
 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871
 __mutex_lock_common kernel/locking/mutex.c:602 [inline]
 __mutex_lock+0x182/0xe80 kernel/locking/mutex.c:747
 ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
 mi_read+0x2d4/0x5a0 fs/ntfs3/record.c:148
 mi_format_new+0x1a3/0x610 fs/ntfs3/record.c:434
 ni_add_subrecord+0xd0/0x440 fs/ntfs3/frecord.c:321
 ntfs_look_free_mft+0x6aa/0xd50 fs/ntfs3/fsntfs.c:715
 ni_ins_attr_ext+0x81d/0xb50 fs/ntfs3/frecord.c:988
 ni_insert_attr fs/ntfs3/frecord.c:1091 [inline]
 ni_insert_resident fs/ntfs3/frecord.c:1475 [inline]
 ni_add_name+0x6df/0xc90 fs/ntfs3/frecord.c:2987
 ni_rename+0x4e/0x140 fs/ntfs3/frecord.c:3027
 ntfs_rename+0x7bb/0xc60 fs/ntfs3/namei.c:317
 vfs_rename+0xb9c/0xec0 fs/namei.c:5137
 do_renameat2+0x878/0xc50 fs/namei.c:5286
 __do_sys_rename fs/namei.c:5333 [inline]
 __se_sys_rename fs/namei.c:5331 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5331
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd0f858e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd0f9474038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fd0f87b5fa0 RCX: 00007fd0f858e929
RDX: 0000000000000000 RSI: 0000200000000440 RDI: 0000200000000340
RBP: 00007fd0f8610b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd0f87b5fa0 R15: 00007ffc518f53d8
 </TASK>