======================================================
WARNING: possible circular locking dependency detected
6.12.0-syzkaller-01892-g8f7c8b88bda4 #0 Not tainted
------------------------------------------------------
syz.1.1450/20849 is trying to acquire lock:
ffff88805a2cb468 (&ni->ni_lock/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline]
ffff88805a2cb468 (&ni->ni_lock/5){+.+.}-{4:4}, at: ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:733

but task is already holding lock:
ffff88805a2cb8a0 (mapping.invalidate_lock#14){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
ffff88805a2cb8a0 (mapping.invalidate_lock#14){.+.+}-{4:4}, at: filemap_create_folio mm/filemap.c:2489 [inline]
ffff88805a2cb8a0 (mapping.invalidate_lock#14){.+.+}-{4:4}, at: filemap_get_pages+0xd3e/0x2540 mm/filemap.c:2556

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (mapping.invalidate_lock#14){.+.+}-{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+0x6e8/0x1950 mm/filemap.c:3333
       __do_fault+0x135/0x460 mm/memory.c:4882
       do_shared_fault mm/memory.c:5361 [inline]
       do_fault mm/memory.c:5435 [inline]
       do_pte_missing mm/memory.c:3965 [inline]
       handle_pte_fault+0x1105/0x6820 mm/memory.c:5766
       __handle_mm_fault mm/memory.c:5909 [inline]
       handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6077
       do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
       handle_page_fault arch/x86/mm/fault.c:1481 [inline]
       exc_page_fault+0x459/0x8c0 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:1600
       insert_vm_struct+0x2f7/0x410 mm/mmap.c:1995
       __bprm_mm_init fs/exec.c:289 [inline]
       bprm_mm_init fs/exec.c:393 [inline]
       alloc_bprm+0x8f5/0xe20 fs/exec.c:1548
       kernel_execve+0x99/0xa50 fs/exec.c:1977
       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:6716
       _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]
       ni_fiemap+0x57c/0x18c0 fs/ntfs3/frecord.c:2139
       ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1352
       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/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:1109 [inline]
       ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:733
       filemap_read_folio+0x14b/0x630 mm/filemap.c:2367
       filemap_create_folio mm/filemap.c:2498 [inline]
       filemap_get_pages+0x100a/0x2540 mm/filemap.c:2556
       filemap_splice_read+0x68e/0xef0 mm/filemap.c:2923
       do_splice_read fs/splice.c:985 [inline]
       splice_direct_to_actor+0x4af/0xc80 fs/splice.c:1089
       do_splice_direct_actor fs/splice.c:1207 [inline]
       do_splice_direct+0x289/0x3e0 fs/splice.c:1233
       vfs_copy_file_range+0xd1f/0x1510 fs/read_write.c:1620
       __do_sys_copy_file_range fs/read_write.c:1670 [inline]
       __se_sys_copy_file_range+0x3fa/0x600 fs/read_write.c:1637
       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/5 --> &vma->vm_lock->lock --> mapping.invalidate_lock#14

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  rlock(mapping.invalidate_lock#14);
                               lock(&vma->vm_lock->lock);
                               lock(mapping.invalidate_lock#14);
  lock(&ni->ni_lock/5);

 *** DEADLOCK ***

1 lock held by syz.1.1450/20849:
 #0: ffff88805a2cb8a0 (mapping.invalidate_lock#14){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
 #0: ffff88805a2cb8a0 (mapping.invalidate_lock#14){.+.+}-{4:4}, at: filemap_create_folio mm/filemap.c:2489 [inline]
 #0: ffff88805a2cb8a0 (mapping.invalidate_lock#14){.+.+}-{4:4}, at: filemap_get_pages+0xd3e/0x2540 mm/filemap.c:2556

stack backtrace:
CPU: 0 UID: 0 PID: 20849 Comm: syz.1.1450 Not tainted 6.12.0-syzkaller-01892-g8f7c8b88bda4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
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:1109 [inline]
 ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:733
 filemap_read_folio+0x14b/0x630 mm/filemap.c:2367
 filemap_create_folio mm/filemap.c:2498 [inline]
 filemap_get_pages+0x100a/0x2540 mm/filemap.c:2556
 filemap_splice_read+0x68e/0xef0 mm/filemap.c:2923
 do_splice_read fs/splice.c:985 [inline]
 splice_direct_to_actor+0x4af/0xc80 fs/splice.c:1089
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x289/0x3e0 fs/splice.c:1233
 vfs_copy_file_range+0xd1f/0x1510 fs/read_write.c:1620
 __do_sys_copy_file_range fs/read_write.c:1670 [inline]
 __se_sys_copy_file_range+0x3fa/0x600 fs/read_write.c:1637
 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: 0033:0x7fc825d7e819
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:00007fc826ac0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fc825f35fa0 RCX: 00007fc825d7e819
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fc825df175e R08: 0000000000003df1 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc825f35fa0 R15: 00007ffea4245d98
 </TASK>