loop2: detected capacity change from 0 to 4096
============================================
WARNING: possible recursive locking detected
5.15.170-syzkaller #0 Not tainted
--------------------------------------------
syz.2.707/6523 is trying to acquire lock:
ffff888060827700 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ffff888060827700 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x2dd/0x5a0 fs/ntfs3/record.c:148

but task is already holding lock:
ffff888060821e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ffff888060821e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_link+0xf0/0x280 fs/ntfs3/namei.c:149

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

       CPU0
       ----
  lock(&ni->ni_lock/4);
  lock(&ni->ni_lock/4);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

6 locks held by syz.2.707/6523:
 #0: ffff888061400460 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
 #1: ffff8880608203a0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:824 [inline]
 #1: ffff8880608203a0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: filename_create+0x25c/0x530 fs/namei.c:3835
 #2: ffff888060822120 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
 #2: ffff888060822120 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_link+0x53f/0x810 fs/namei.c:4548
 #3: ffff888060820100 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock_dir fs/ntfs3/ntfs_fs.h:1105 [inline]
 #3: ffff888060820100 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_link+0xd5/0x280 fs/ntfs3/namei.c:147
 #4: ffff888060821e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
 #4: ffff888060821e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_link+0xf0/0x280 fs/ntfs3/namei.c:149
 #5: ffff888061402120 (&wnd->rw_lock/1){+.+.}-{3:3}, at: ntfs_look_free_mft+0x1e7/0xff0 fs/ntfs3/fsntfs.c:542

stack backtrace:
CPU: 1 PID: 6523 Comm: syz.2.707 Not tainted 5.15.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 print_deadlock_bug kernel/locking/lockdep.c:2946 [inline]
 check_deadlock kernel/locking/lockdep.c:2989 [inline]
 validate_chain+0x46d2/0x5930 kernel/locking/lockdep.c:3775
 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 __mutex_lock_common+0x1da/0x25a0 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+0x2dd/0x5a0 fs/ntfs3/record.c:148
 mi_format_new+0x1a7/0x5c0 fs/ntfs3/record.c:374
 ni_add_subrecord+0xde/0x430 fs/ntfs3/frecord.c:370
 ntfs_look_free_mft+0x7f1/0xff0 fs/ntfs3/fsntfs.c:686
 ni_create_attr_list+0x9b6/0x1470 fs/ntfs3/frecord.c:848
 ni_ins_attr_ext+0x364/0xb30 fs/ntfs3/frecord.c:949
 ni_insert_attr fs/ntfs3/frecord.c:1103 [inline]
 ni_insert_resident fs/ntfs3/frecord.c:1477 [inline]
 ni_add_name+0x689/0x9d0 fs/ntfs3/frecord.c:2983
 ntfs_link_inode+0x305/0x3c0 fs/ntfs3/inode.c:1711
 ntfs_link+0x112/0x280 fs/ntfs3/namei.c:154
 vfs_link+0x65e/0x810 fs/namei.c:4557
 do_linkat+0x5c8/0x9d0 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+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fcdb78e4719
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:00007fcdb5d5c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007fcdb7a9bf80 RCX: 00007fcdb78e4719
RDX: 0000000000000000 RSI: 0000000020000bc0 RDI: 0000000020001240
RBP: 00007fcdb795739e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcdb7a9bf80 R15: 00007ffd3bf061c8
 </TASK>