ntfs3(loop7): Different NTFS sector size (4096) and media sector size (512).
ntfs3(loop7): Failed to load $Extend (-22).
ntfs3(loop7): Failed to initialize $Extend.
======================================================
WARNING: possible circular locking dependency detected
6.16.0-syzkaller-11895-gcca7a0aae895 #0 Not tainted
------------------------------------------------------
syz.7.1671/11149 is trying to acquire lock:
ffff888037dec270 (&wnd->rw_lock){++++}-{4:4}, at: mark_as_free_ex+0x3e/0x390

but task is already holding lock:
ffff888029b8f730 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_setattr+0x70e/0xbe0

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&ni->file.run_lock#2){++++}-{4:4}:
       lock_acquire+0x120/0x360
       down_read+0x46/0x2e0
       run_unpack_ex+0x7e5/0xba0
       ntfs_iget5+0x232b/0x37c0
       dir_search_u+0x1df/0x2c0
       ntfs_lookup+0xfb/0x1f0
       path_openat+0x1101/0x3830
       do_filp_open+0x1fa/0x410
       do_sys_openat2+0x121/0x1c0
       __x64_sys_openat+0x138/0x170
       do_syscall_64+0xfa/0x3b0
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&wnd->rw_lock){++++}-{4:4}:
       validate_chain+0xb9b/0x2140
       __lock_acquire+0xab9/0xd20
       lock_acquire+0x120/0x360
       down_write_nested+0x9d/0x200
       mark_as_free_ex+0x3e/0x390
       run_deallocate_ex+0x187/0x2f0
       attr_set_size+0xeb9/0x2c70
       ntfs_setattr+0x7d0/0xbe0
       notify_change+0xb36/0xe40
       do_truncate+0x1a4/0x220
       vfs_truncate+0x493/0x520
       do_sys_truncate+0xdb/0x190
       __x64_sys_truncate+0x5b/0x70
       do_syscall_64+0xfa/0x3b0
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ni->file.run_lock#2);
                               lock(&wnd->rw_lock);
                               lock(&ni->file.run_lock#2);
  lock(&wnd->rw_lock);

 *** DEADLOCK ***

4 locks held by syz.7.1671/11149:
 #0: ffff888021c44428 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff888029b8f918 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: do_truncate+0x171/0x220
 #2: ffff888029b8f680 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_setattr+0x6fd/0xbe0
 #3: ffff888029b8f730 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_setattr+0x70e/0xbe0

stack backtrace:
CPU: 0 UID: 0 PID: 11149 Comm: syz.7.1671 Not tainted 6.16.0-syzkaller-11895-gcca7a0aae895 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 print_circular_bug+0x2ee/0x310
 check_noncircular+0x134/0x160
 validate_chain+0xb9b/0x2140
 __lock_acquire+0xab9/0xd20
 lock_acquire+0x120/0x360
 down_write_nested+0x9d/0x200
 mark_as_free_ex+0x3e/0x390
 run_deallocate_ex+0x187/0x2f0
 attr_set_size+0xeb9/0x2c70
 ntfs_setattr+0x7d0/0xbe0
 notify_change+0xb36/0xe40
 do_truncate+0x1a4/0x220
 vfs_truncate+0x493/0x520
 do_sys_truncate+0xdb/0x190
 __x64_sys_truncate+0x5b/0x70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe27278ebe9
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:00007fe273613038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007fe2729b5fa0 RCX: 00007fe27278ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007fe272811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe2729b6038 R14: 00007fe2729b5fa0 R15: 00007ffe80ff9348
 </TASK>
