======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0 Not tainted
------------------------------------------------------
syz.0.204/7648 is trying to acquire lock:
ffff88806e741708 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline]
ffff88806e741708 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ntfs_fallocate+0x816/0x1270 fs/ntfs3/file.c:666

but task is already holding lock:
ffff88806e741b40 (mapping.invalidate_lock#10){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
ffff88806e741b40 (mapping.invalidate_lock#10){++++}-{4:4}, at: ntfs_fallocate+0x3c4/0x1270 fs/ntfs3/file.c:596

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (mapping.invalidate_lock#10){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
       filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
       filemap_fault+0x615/0x1490 mm/filemap.c:3332
       __do_fault+0x135/0x390 mm/memory.c:4907
       do_shared_fault mm/memory.c:5386 [inline]
       do_fault mm/memory.c:5460 [inline]
       do_pte_missing mm/memory.c:3979 [inline]
       handle_pte_fault+0xfcf/0x5ed0 mm/memory.c:5801
       __handle_mm_fault mm/memory.c:5944 [inline]
       handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
       do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
       handle_page_fault arch/x86/mm/fault.c:1481 [inline]
       exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
       asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

-> #2 (&vma->vm_lock->lock){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_write+0x99/0x220 kernel/locking/rwsem.c:1577
       vma_start_write include/linux/mm.h:769 [inline]
       vma_link+0x28c/0x500 mm/vma.c:1691
       insert_vm_struct+0x2f7/0x410 mm/mmap.c:1740
       __bprm_mm_init fs/exec.c:289 [inline]
       bprm_mm_init fs/exec.c:393 [inline]
       alloc_bprm+0x5a6/0xa30 fs/exec.c:1544
       kernel_execve+0x99/0xa50 fs/exec.c:1974
       try_to_run_init_process init/main.c:1394 [inline]
       kernel_init+0xed/0x2b0 init/main.c:1522
       ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

-> #1 (&mm->mmap_lock){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       __might_fault+0xc6/0x120 mm/memory.c:6751
       _inline_copy_to_user include/linux/uaccess.h:192 [inline]
       _copy_to_user+0x2c/0xb0 lib/usercopy.c:26
       copy_to_user include/linux/uaccess.h:225 [inline]
       fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145
       ni_fiemap+0xa24/0x1220 fs/ntfs3/frecord.c:2059
       ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1360
       ioctl_fiemap fs/ioctl.c:220 [inline]
       do_vfs_ioctl+0x1c01/0x2e40 fs/ioctl.c:840
       __do_sys_ioctl fs/ioctl.c:904 [inline]
       __se_sys_ioctl+0x80/0x170 fs/ioctl.c:892
       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

-> #0 (&ni->ni_lock#2/5){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
       __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
       ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline]
       ntfs_fallocate+0x816/0x1270 fs/ntfs3/file.c:666
       vfs_fallocate+0x569/0x6e0 fs/open.c:327
       ksys_fallocate fs/open.c:351 [inline]
       __do_sys_fallocate fs/open.c:356 [inline]
       __se_sys_fallocate fs/open.c:354 [inline]
       __x64_sys_fallocate+0xbc/0x110 fs/open.c:354
       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

other info that might help us debug this:

Chain exists of:
  &ni->ni_lock#2/5 --> &vma->vm_lock->lock --> mapping.invalidate_lock#10

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(mapping.invalidate_lock#10);
                               lock(&vma->vm_lock->lock);
                               lock(mapping.invalidate_lock#10);
  lock(&ni->ni_lock#2/5);

 *** DEADLOCK ***

3 locks held by syz.0.204/7648:
 #0: ffff888078e66420 (sb_writers#17){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
 #0: ffff888078e66420 (sb_writers#17){.+.+}-{0:0}, at: vfs_fallocate+0x4fe/0x6e0 fs/open.c:326
 #1: ffff88806e7419a0 (&sb->s_type->i_mutex_key#25){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #1: ffff88806e7419a0 (&sb->s_type->i_mutex_key#25){+.+.}-{4:4}, at: ntfs_fallocate+0x2dd/0x1270 fs/ntfs3/file.c:582
 #2: ffff88806e741b40 (mapping.invalidate_lock#10){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
 #2: ffff88806e741b40 (mapping.invalidate_lock#10){++++}-{4:4}, at: ntfs_fallocate+0x3c4/0x1270 fs/ntfs3/file.c:596

stack backtrace:
CPU: 0 UID: 0 PID: 7648 Comm: syz.0.204 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074
 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206
 check_prev_add kernel/locking/lockdep.c:3161 [inline]
 check_prevs_add kernel/locking/lockdep.c:3280 [inline]
 validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
 __mutex_lock_common kernel/locking/mutex.c:585 [inline]
 __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
 ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline]
 ntfs_fallocate+0x816/0x1270 fs/ntfs3/file.c:666
 vfs_fallocate+0x569/0x6e0 fs/open.c:327
 ksys_fallocate fs/open.c:351 [inline]
 __do_sys_fallocate fs/open.c:356 [inline]
 __se_sys_fallocate fs/open.c:354 [inline]
 __x64_sys_fallocate+0xbc/0x110 fs/open.c:354
 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: 0033:0x7f6095185d29
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:00007f6092ff6038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f6095376080 RCX: 00007f6095185d29
RDX: 0000000000002000 RSI: 0000000000000008 RDI: 0000000000000006
RBP: 00007f6095201aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000007000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6095376080 R15: 00007ffd3a4eb2a8
 </TASK>