====================================================== WARNING: possible circular locking dependency detected 6.12.0-rc2-syzkaller-00058-g75b607fab38d #0 Not tainted ------------------------------------------------------ syz.3.200/7298 is trying to acquire lock: ffff88805e41c318 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline] ffff88805e41c318 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_read_folio+0x193/0x210 fs/ntfs3/inode.c:733 but task is already holding lock: ffff88805e41c750 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] ffff88805e41c750 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_create_folio mm/filemap.c:2489 [inline] ffff88805e41c750 (mapping.invalidate_lock#12){.+.+}-{3:3}, 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#12){.+.+}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] filemap_fault+0x6e8/0x1950 mm/filemap.c:3331 __do_fault+0x135/0x460 mm/memory.c:4876 do_shared_fault mm/memory.c:5346 [inline] do_fault mm/memory.c:5420 [inline] do_pte_missing mm/memory.c:3965 [inline] handle_pte_fault+0x1105/0x6800 mm/memory.c:5751 __handle_mm_fault mm/memory.c:5894 [inline] handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6062 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){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 vma_start_write include/linux/mm.h:757 [inline] vma_link+0x28c/0x500 mm/vma.c:1596 insert_vm_struct+0x2f7/0x410 mm/mmap.c:1936 __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:1397 [inline] kernel_init+0xed/0x2b0 init/main.c:1525 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){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825 __might_fault+0xc6/0x120 mm/memory.c:6700 _inline_copy_to_user include/linux/uaccess.h:183 [inline] _copy_to_user+0x2a/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:216 [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+0x1bf8/0x2e40 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 -> #0 (&ni->ni_lock/5){+.+.}-{3:3}: 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+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] 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:2921 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:1651 __do_sys_copy_file_range fs/read_write.c:1705 [inline] __se_sys_copy_file_range+0x3f2/0x5d0 fs/read_write.c:1668 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#12 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(mapping.invalidate_lock#12); lock(&vma->vm_lock->lock); lock(mapping.invalidate_lock#12); lock(&ni->ni_lock/5); *** DEADLOCK *** 1 lock held by syz.3.200/7298: #0: ffff88805e41c750 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] #0: ffff88805e41c750 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_create_folio mm/filemap.c:2489 [inline] #0: ffff88805e41c750 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_get_pages+0xd3e/0x2540 mm/filemap.c:2556 stack backtrace: CPU: 1 UID: 0 PID: 7298 Comm: syz.3.200 Not tainted 6.12.0-rc2-syzkaller-00058-g75b607fab38d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __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+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] 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:2921 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:1651 __do_sys_copy_file_range fs/read_write.c:1705 [inline] __se_sys_copy_file_range+0x3f2/0x5d0 fs/read_write.c:1668 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: 0033:0x7fca07d7dff9 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:00007fca08c55038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 RAX: ffffffffffffffda RBX: 00007fca07f35f80 RCX: 00007fca07d7dff9 RDX: 000000000000000a RSI: 0000000000000000 RDI: 000000000000000d RBP: 00007fca07df0296 R08: ffffffffa003e459 R09: 0700000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fca07f35f80 R15: 00007ffd88a0c1f8