ntfs3(loop0): Different NTFS sector size (4096) and media sector size (512). ntfs3(loop0): ino=3, ntfs_set_state failed, -22. ntfs3(loop0): Failed to initialize $Extend/$Reparse. ====================================================== WARNING: possible circular locking dependency detected 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 Not tainted ------------------------------------------------------ syz.0.304/8087 is trying to acquire lock: ffff0000d74ee270 (&wnd->rw_lock){++++}-{4:4}, at: ntfs_look_for_free_space+0xbc/0x560 fs/ntfs3/fsntfs.c:362 but task is already holding lock: ffff0000f4066fd8 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_extend_mft+0x108/0x394 fs/ntfs3/fsntfs.c:511 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ni->file.run_lock#2){++++}-{4:4}: down_read+0x58/0x2f8 kernel/locking/rwsem.c:1524 run_unpack_ex+0x6cc/0x998 fs/ntfs3/run.c:1119 ntfs_read_mft fs/ntfs3/inode.c:401 [inline] ntfs_iget5+0x19f4/0x2a44 fs/ntfs3/inode.c:540 dir_search_u+0x250/0x2a4 fs/ntfs3/dir.c:264 ntfs_lookup+0x100/0x1f0 fs/ntfs3/namei.c:85 lookup_open fs/namei.c:3695 [inline] open_last_lookups fs/namei.c:3816 [inline] path_openat+0xcc0/0x2c40 fs/namei.c:4052 do_filp_open+0x18c/0x36c fs/namei.c:4082 do_sys_openat2+0x11c/0x1b4 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1463 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 -> #0 (&wnd->rw_lock){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3168 [inline] check_prevs_add kernel/locking/lockdep.c:3287 [inline] validate_chain kernel/locking/lockdep.c:3911 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5240 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871 down_write_nested+0x58/0xcc kernel/locking/rwsem.c:1693 ntfs_look_for_free_space+0xbc/0x560 fs/ntfs3/fsntfs.c:362 attr_allocate_clusters+0x198/0x620 fs/ntfs3/attrib.c:159 attr_set_size+0x1064/0x2368 fs/ntfs3/attrib.c:574 ntfs_extend_mft+0x130/0x394 fs/ntfs3/fsntfs.c:512 ntfs_look_free_mft+0x500/0xb1c fs/ntfs3/fsntfs.c:709 ntfs_create_inode+0x368/0x2750 fs/ntfs3/inode.c:1272 ntfs_symlink+0xd8/0x104 fs/ntfs3/namei.c:197 vfs_symlink+0x138/0x288 fs/namei.c:4739 do_symlinkat+0x17c/0x360 fs/namei.c:4765 __do_sys_symlinkat fs/namei.c:4781 [inline] __se_sys_symlinkat fs/namei.c:4778 [inline] __arm64_sys_symlinkat+0x9c/0xb4 fs/namei.c:4778 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 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 *** 5 locks held by syz.0.304/8087: #0: ffff0000fddd0428 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:557 #1: ffff0000f8aebe58 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:914 [inline] #1: ffff0000f8aebe58 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: filename_create+0x1ac/0x3b4 fs/namei.c:4148 #2: ffff0000f8aebbc0 (&ni->ni_lock#2/6){+.+.}-{4:4}, at: ni_lock_dir fs/ntfs3/ntfs_fs.h:1105 [inline] #2: ffff0000f8aebbc0 (&ni->ni_lock#2/6){+.+.}-{4:4}, at: ntfs_create_inode+0x118/0x2750 fs/ntfs3/inode.c:1186 #3: ffff0000d74ee128 (&wnd->rw_lock/1){+.+.}-{4:4}, at: ntfs_look_free_mft+0x134/0xb1c fs/ntfs3/fsntfs.c:571 #4: ffff0000f4066fd8 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_extend_mft+0x108/0x394 fs/ntfs3/fsntfs.c:511 stack backtrace: CPU: 1 UID: 0 PID: 8087 Comm: syz.0.304 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 print_circular_bug+0x324/0x32c kernel/locking/lockdep.c:2046 check_noncircular+0x154/0x174 kernel/locking/lockdep.c:2178 check_prev_add kernel/locking/lockdep.c:3168 [inline] check_prevs_add kernel/locking/lockdep.c:3287 [inline] validate_chain kernel/locking/lockdep.c:3911 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5240 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871 down_write_nested+0x58/0xcc kernel/locking/rwsem.c:1693 ntfs_look_for_free_space+0xbc/0x560 fs/ntfs3/fsntfs.c:362 attr_allocate_clusters+0x198/0x620 fs/ntfs3/attrib.c:159 attr_set_size+0x1064/0x2368 fs/ntfs3/attrib.c:574 ntfs_extend_mft+0x130/0x394 fs/ntfs3/fsntfs.c:512 ntfs_look_free_mft+0x500/0xb1c fs/ntfs3/fsntfs.c:709 ntfs_create_inode+0x368/0x2750 fs/ntfs3/inode.c:1272 ntfs_symlink+0xd8/0x104 fs/ntfs3/namei.c:197 vfs_symlink+0x138/0x288 fs/namei.c:4739 do_symlinkat+0x17c/0x360 fs/namei.c:4765 __do_sys_symlinkat fs/namei.c:4781 [inline] __se_sys_symlinkat fs/namei.c:4778 [inline] __arm64_sys_symlinkat+0x9c/0xb4 fs/namei.c:4778 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596