====================================================== WARNING: possible circular locking dependency detected 6.10.0-rc2-syzkaller-00222-gd30d0e49da71 #0 Not tainted ------------------------------------------------------ syz-executor.0/10409 is trying to acquire lock: ffff8880775fd220 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline] ffff8880775fd220 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_read_folio+0xc0/0x210 fs/ntfs3/inode.c:720 but task is already holding lock: ffff8880775fd660 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:846 [inline] ffff8880775fd660 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_fault+0xb5b/0x1760 mm/filemap.c:3320 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (mapping.invalidate_lock#12){.+.+}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:846 [inline] filemap_fault+0x658/0x1760 mm/filemap.c:3301 __do_fault+0x135/0x460 mm/memory.c:4562 do_read_fault mm/memory.c:4926 [inline] do_fault mm/memory.c:5056 [inline] do_pte_missing mm/memory.c:3903 [inline] handle_pte_fault+0x3d8d/0x7130 mm/memory.c:5380 __handle_mm_fault mm/memory.c:5523 [inline] handle_mm_fault+0xfb0/0x19d0 mm/memory.c:5688 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 rep_movs_alternative+0x4a/0x70 arch/x86/lib/copy_user_64.S:65 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:28 copy_from_user include/linux/uaccess.h:183 [inline] copy_mount_options fs/namespace.c:3561 [inline] __do_sys_mount fs/namespace.c:3893 [inline] __se_sys_mount+0x17d/0x3c0 fs/namespace.c:3875 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 -> #2 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __might_fault+0xc6/0x120 mm/memory.c:6233 _copy_to_user+0x2a/0xb0 lib/usercopy.c:41 copy_to_user include/linux/uaccess.h:191 [inline] fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145 ni_fiemap+0xa5e/0x1230 fs/ntfs3/frecord.c:2065 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1215 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:841 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:893 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 -> #1 (&ni->file.run_lock#3){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 down_write+0x3a/0x50 kernel/locking/rwsem.c:1579 ntfs_set_size+0x13d/0x200 fs/ntfs3/inode.c:849 ntfs_extend+0x16d/0x4a0 fs/ntfs3/file.c:335 ntfs_file_write_iter+0x3ea/0x770 fs/ntfs3/file.c:1124 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 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/4){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3869 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __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:1123 [inline] ntfs_read_folio+0xc0/0x210 fs/ntfs3/inode.c:720 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2355 filemap_fault+0xf69/0x1760 mm/filemap.c:3405 __do_fault+0x135/0x460 mm/memory.c:4562 do_shared_fault mm/memory.c:4986 [inline] do_fault mm/memory.c:5060 [inline] do_pte_missing mm/memory.c:3903 [inline] handle_pte_fault+0x11b7/0x7130 mm/memory.c:5380 __handle_mm_fault mm/memory.c:5523 [inline] handle_mm_fault+0xfb0/0x19d0 mm/memory.c:5688 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 other info that might help us debug this: Chain exists of: &ni->ni_lock/4 --> &mm->mmap_lock --> mapping.invalidate_lock#12 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(mapping.invalidate_lock#12); lock(&mm->mmap_lock); lock(mapping.invalidate_lock#12); lock(&ni->ni_lock/4); *** DEADLOCK *** 1 lock held by syz-executor.0/10409: #0: ffff8880775fd660 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:846 [inline] #0: ffff8880775fd660 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_fault+0xb5b/0x1760 mm/filemap.c:3320 stack backtrace: CPU: 0 PID: 10409 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-00222-gd30d0e49da71 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3869 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __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:1123 [inline] ntfs_read_folio+0xc0/0x210 fs/ntfs3/inode.c:720 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2355 filemap_fault+0xf69/0x1760 mm/filemap.c:3405 __do_fault+0x135/0x460 mm/memory.c:4562 do_shared_fault mm/memory.c:4986 [inline] do_fault mm/memory.c:5060 [inline] do_pte_missing mm/memory.c:3903 [inline] handle_pte_fault+0x11b7/0x7130 mm/memory.c:5380 __handle_mm_fault mm/memory.c:5523 [inline] handle_mm_fault+0xfb0/0x19d0 mm/memory.c:5688 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 RIP: 0033:0x7f563382ba61 Code: 48 8b 54 24 08 48 85 d2 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fa 01 0f 85 b3 01 00 00 48 8b 44 24 10 8b 54 24 18 <89> 10 e9 15 fd ff ff 48 8b 44 24 10 8b 10 48 8b 44 24 08 48 85 c0 RSP: 002b:00007ffc1f111450 EFLAGS: 00010246 RAX: 0000000020000600 RBX: 0000000000000004 RCX: 0000000000000000 RDX: 0000000000000078 RSI: 0000000000000000 RDI: 0000555572105360 RBP: 00007ffc1f111548 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 00007f56339b3f80 R13: 00007f56339b3f8c R14: 0000000000000032 R15: 00007f56339b5980