============================================
WARNING: possible recursive locking detected
5.15.181-syzkaller #0 Not tainted
--------------------------------------------
syz.5.1007/8649 is trying to acquire lock:
ffff888074a4b4a0 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ffff888074a4b4a0 (&ni->ni_lock/5){+.+.}-{3:3}, at: mi_read+0x2d0/0x590 fs/ntfs3/record.c:148

but task is already holding lock:
ffff888061454360 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ffff888061454360 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_link+0xf2/0x280 fs/ntfs3/namei.c:149

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

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

 *** DEADLOCK ***

 May be due to missing lock nesting notation

6 locks held by syz.5.1007/8649:
 #0: ffff888074c8c460 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write+0x3d/0x90 fs/namespace.c:377
 #1: ffff888061453740 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:822 [inline]
 #1: ffff888061453740 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: filename_create+0x1f2/0x450 fs/namei.c:3835
 #2: ffff888061454600 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
 #2: ffff888061454600 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: vfs_link+0x513/0x7c0 fs/namei.c:4548
 #3: ffff8880614534a0 (&ni->ni_lock/6){+.+.}-{3:3}, at: ni_lock_dir fs/ntfs3/ntfs_fs.h:1105 [inline]
 #3: ffff8880614534a0 (&ni->ni_lock/6){+.+.}-{3:3}, at: ntfs_link+0xd7/0x280 fs/ntfs3/namei.c:147
 #4: ffff888061454360 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
 #4: ffff888061454360 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_link+0xf2/0x280 fs/ntfs3/namei.c:149
 #5: ffff888069aa6120 (&wnd->rw_lock/1){+.+.}-{3:3}, at: ntfs_look_free_mft+0x160/0xd30 fs/ntfs3/fsntfs.c:542

stack backtrace:
CPU: 0 PID: 8649 Comm: syz.5.1007 Not tainted 5.15.181-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 __lock_acquire+0x1227/0x7c60 kernel/locking/lockdep.c:-1
 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
 __mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
 mi_read+0x2d0/0x590 fs/ntfs3/record.c:148
 mi_format_new+0x191/0x5c0 fs/ntfs3/record.c:374
 ni_add_subrecord+0xcc/0x440 fs/ntfs3/frecord.c:372
 ntfs_look_free_mft+0x6a4/0xd30 fs/ntfs3/fsntfs.c:686
 ni_create_attr_list+0x8a9/0x1210 fs/ntfs3/frecord.c:850
 ni_ins_attr_ext+0x304/0x9b0 fs/ntfs3/frecord.c:951
 ni_insert_attr fs/ntfs3/frecord.c:1105 [inline]
 ni_insert_resident fs/ntfs3/frecord.c:1479 [inline]
 ni_add_name+0x32f/0x7c0 fs/ntfs3/frecord.c:2985
 ntfs_link_inode+0x315/0x3d0 fs/ntfs3/inode.c:1711
 ntfs_link+0x114/0x280 fs/ntfs3/namei.c:154
 vfs_link+0x615/0x7c0 fs/namei.c:4557
 do_linkat+0x277/0x7b0 fs/namei.c:4628
 __do_sys_link fs/namei.c:4662 [inline]
 __se_sys_link fs/namei.c:4660 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4660
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fcdbdde4969
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:00007fcdbbc4c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007fcdbe00bfa0 RCX: 00007fcdbdde4969
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 00002000000001c0
RBP: 00007fcdbde66ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcdbe00bfa0 R15: 00007ffee4e797e8
 </TASK>