ntfs3(loop8): Different NTFS sector size (4096) and media sector size (512). ====================================================== WARNING: possible circular locking dependency detected 6.12.0-rc5-next-20241104-syzkaller #0 Not tainted ------------------------------------------------------ syz.8.2860/23665 is trying to acquire lock: ffff888034e32270 (&wnd->rw_lock){++++}-{4:4}, at: mark_as_free_ex+0x3e/0x390 fs/ntfs3/fsntfs.c:2484 but task is already holding lock: ffff888063f859d0 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_truncate fs/ntfs3/file.c:505 [inline] ffff888063f859d0 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_setattr+0x6d3/0xb80 fs/ntfs3/file.c:824 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+0x1ed/0x550 kernel/locking/lockdep.c:5849 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 run_unpack_ex+0x55e/0x9e0 fs/ntfs3/run.c:1119 ntfs_read_mft fs/ntfs3/inode.c:401 [inline] ntfs_iget5+0x1f9a/0x37b0 fs/ntfs3/inode.c:537 dir_search_u+0x2fe/0x3a0 fs/ntfs3/dir.c:264 ntfs_lookup+0x106/0x1f0 fs/ntfs3/namei.c:85 lookup_one_qstr_excl+0x11f/0x260 fs/namei.c:1674 do_renameat2+0x670/0x13f0 fs/namei.c:5152 __do_sys_rename fs/namei.c:5258 [inline] __se_sys_rename fs/namei.c:5256 [inline] __x64_sys_rename+0x82/0x90 fs/namei.c:5256 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 (&wnd->rw_lock){++++}-{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 down_write_nested+0xa2/0x220 kernel/locking/rwsem.c:1693 mark_as_free_ex+0x3e/0x390 fs/ntfs3/fsntfs.c:2484 run_deallocate_ex+0x244/0x5f0 fs/ntfs3/attrib.c:122 attr_set_size+0x168d/0x4300 fs/ntfs3/attrib.c:753 ntfs_truncate fs/ntfs3/file.c:506 [inline] ntfs_setattr+0x7a4/0xb80 fs/ntfs3/file.c:824 notify_change+0xbca/0xe90 fs/attr.c:552 do_truncate+0x220/0x310 fs/open.c:65 handle_truncate fs/namei.c:3436 [inline] do_open fs/namei.c:3819 [inline] path_openat+0x2e1e/0x3590 fs/namei.c:3974 do_filp_open+0x235/0x490 fs/namei.c:4001 do_sys_openat2+0x13e/0x1d0 fs/open.c:1419 do_sys_open fs/open.c:1434 [inline] __do_sys_creat fs/open.c:1512 [inline] __se_sys_creat fs/open.c:1506 [inline] __x64_sys_creat+0x123/0x170 fs/open.c:1506 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: 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.8.2860/23665: #0: ffff888067196420 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 #1: ffff888063f85bb8 (&sb->s_type->i_mutex_key#23){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:817 [inline] #1: ffff888063f85bb8 (&sb->s_type->i_mutex_key#23){+.+.}-{4:4}, at: do_truncate+0x20c/0x310 fs/open.c:63 #2: ffff888063f85920 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] #2: ffff888063f85920 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_truncate fs/ntfs3/file.c:503 [inline] #2: ffff888063f85920 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_setattr+0x6bf/0xb80 fs/ntfs3/file.c:824 #3: ffff888063f859d0 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_truncate fs/ntfs3/file.c:505 [inline] #3: ffff888063f859d0 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_setattr+0x6d3/0xb80 fs/ntfs3/file.c:824 stack backtrace: CPU: 1 UID: 0 PID: 23665 Comm: syz.8.2860 Not tainted 6.12.0-rc5-next-20241104-syzkaller #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+0x1397/0x2100 kernel/locking/lockdep.c:5226 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 down_write_nested+0xa2/0x220 kernel/locking/rwsem.c:1693 mark_as_free_ex+0x3e/0x390 fs/ntfs3/fsntfs.c:2484 run_deallocate_ex+0x244/0x5f0 fs/ntfs3/attrib.c:122 attr_set_size+0x168d/0x4300 fs/ntfs3/attrib.c:753 ntfs_truncate fs/ntfs3/file.c:506 [inline] ntfs_setattr+0x7a4/0xb80 fs/ntfs3/file.c:824 notify_change+0xbca/0xe90 fs/attr.c:552 do_truncate+0x220/0x310 fs/open.c:65 handle_truncate fs/namei.c:3436 [inline] do_open fs/namei.c:3819 [inline] path_openat+0x2e1e/0x3590 fs/namei.c:3974 do_filp_open+0x235/0x490 fs/namei.c:4001 do_sys_openat2+0x13e/0x1d0 fs/open.c:1419 do_sys_open fs/open.c:1434 [inline] __do_sys_creat fs/open.c:1512 [inline] __se_sys_creat fs/open.c:1506 [inline] __x64_sys_creat+0x123/0x170 fs/open.c:1506 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: 0033:0x7fd3aff7e719 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:00007fd3b0df0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fd3b0135f80 RCX: 00007fd3aff7e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007fd3afff139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd3b0135f80 R15: 00007ffc3dfbb9b8