============================================
WARNING: possible recursive locking detected
6.12.0-rc2-syzkaller-00006-g87d6aab2389e #0 Not tainted
--------------------------------------------
syz.4.197/6917 is trying to acquire lock:
ffff88823be84100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline]
ffff88823be84100 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x2e1/0x5a0 fs/ntfs3/record.c:148

but task is already holding lock:
ffff88805d3e8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline]
ffff88805d3e8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf9/0x1f0 fs/ntfs3/namei.c:84

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

3 locks held by syz.4.197/6917:
 #0: ffff88806a52a420 (sb_writers#26){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
 #1: ffff88805d3e8398 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #1: ffff88805d3e8398 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
 #1: ffff88805d3e8398 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
 #2: ffff88805d3e8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline]
 #2: ffff88805d3e8100 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf9/0x1f0 fs/ntfs3/namei.c:84

stack backtrace:
CPU: 0 UID: 0 PID: 6917 Comm: syz.4.197 Not tainted 6.12.0-rc2-syzkaller-00006-g87d6aab2389e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3037
 check_deadlock kernel/locking/lockdep.c:3089 [inline]
 validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3891
 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5202
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 __mutex_lock_common kernel/locking/mutex.c:608 [inline]
 __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752
 ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline]
 mi_read+0x2e1/0x5a0 fs/ntfs3/record.c:148
 ntfs_read_mft fs/ntfs3/inode.c:70 [inline]
 ntfs_iget5+0x482/0x3940 fs/ntfs3/inode.c:537
 dir_search_u+0x2fe/0x3a0 fs/ntfs3/dir.c:264
 ntfs_lookup+0x106/0x1f0 fs/ntfs3/namei.c:85
 lookup_open fs/namei.c:3573 [inline]
 open_last_lookups fs/namei.c:3694 [inline]
 path_openat+0x11a7/0x3590 fs/namei.c:3930
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_open fs/open.c:1438 [inline]
 __se_sys_open fs/open.c:1434 [inline]
 __x64_sys_open+0x225/0x270 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9f0d77dff9
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:00007f9f0e595038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f9f0d935f80 RCX: 00007f9f0d77dff9
RDX: 0000000000000000 RSI: 000000000010b942 RDI: 0000000020000080
RBP: 00007f9f0d7f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9f0d935f80 R15: 00007ffe0ddc3868
 </TASK>