ntfs3(loop2): Different NTFS sector size (1024) and media sector size (512). ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.2.1714/11388 is trying to acquire lock: ffff0000d55a8270 (&wnd->rw_lock){++++}-{4:4}, at: ntfs_look_for_free_space+0xbc/0x560 fs/ntfs3/fsntfs.c:362 but task is already holding lock: ffff0000d8e134a8 (&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:1537 run_unpack_ex+0x6cc/0x998 fs/ntfs3/run.c:1124 ntfs_read_mft fs/ntfs3/inode.c:401 [inline] ntfs_iget5+0x1a00/0x2a90 fs/ntfs3/inode.c:541 dir_search_u+0x250/0x2a4 fs/ntfs3/dir.c:264 ntfs_lookup+0x100/0x1f0 fs/ntfs3/namei.c:85 __lookup_slow+0x254/0x378 fs/namei.c:1816 lookup_slow+0x5c/0x80 fs/namei.c:1833 walk_component+0x270/0x364 fs/namei.c:2151 lookup_last fs/namei.c:2652 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2676 filename_lookup+0x1ac/0x454 fs/namei.c:2705 filename_getxattr+0xb0/0x204 fs/xattr.c:814 path_getxattrat fs/xattr.c:859 [inline] __do_sys_lgetxattr fs/xattr.c:897 [inline] __se_sys_lgetxattr fs/xattr.c:894 [inline] __arm64_sys_lgetxattr+0x19c/0x1ec fs/xattr.c:894 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 -> #0 (&wnd->rw_lock){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868 down_write_nested+0x58/0xcc kernel/locking/rwsem.c:1706 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 ni_create_attr_list+0x804/0x1184 fs/ntfs3/frecord.c:826 ni_ins_attr_ext+0x3d0/0x9c8 fs/ntfs3/frecord.c:924 ni_insert_attr fs/ntfs3/frecord.c:1091 [inline] ni_insert_resident fs/ntfs3/frecord.c:1475 [inline] ni_add_name+0x5a0/0xae4 fs/ntfs3/frecord.c:2987 ni_rename+0x54/0x118 fs/ntfs3/frecord.c:3026 ntfs_rename+0x5bc/0x9f4 fs/ntfs3/namei.c:332 vfs_rename+0x9c0/0xc94 fs/namei.c:5216 do_renameat2+0x5ec/0x8a0 fs/namei.c:5364 __do_sys_renameat2 fs/namei.c:5398 [inline] __se_sys_renameat2 fs/namei.c:5395 [inline] __arm64_sys_renameat2+0xd8/0xf4 fs/namei.c:5395 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 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 *** 7 locks held by syz.2.1714/11388: #0: ffff0000d80e6420 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:508 #1: ffff0000d8e11970 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1025 [inline] #1: ffff0000d8e11970 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: lock_rename fs/namei.c:3360 [inline] #1: ffff0000d8e11970 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: do_renameat2+0x364/0x8a0 fs/namei.c:5311 #2: ffff0000d8e11228 (&sb->s_type->i_mutex_key#31/4){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1025 [inline] #2: ffff0000d8e11228 (&sb->s_type->i_mutex_key#31/4){+.+.}-{4:4}, at: lock_two_nondirectories+0xf0/0x150 fs/inode.c:1234 #3: ffff0000d8e116d8 (&ni->ni_lock#2/6){+.+.}-{4:4}, at: ni_lock_dir fs/ntfs3/ntfs_fs.h:1118 [inline] #3: ffff0000d8e116d8 (&ni->ni_lock#2/6){+.+.}-{4:4}, at: ntfs_rename+0x574/0x9f4 fs/ntfs3/namei.c:327 #4: ffff0000d8e10f90 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ni_lock fs/ntfs3/ntfs_fs.h:1113 [inline] #4: ffff0000d8e10f90 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ntfs_rename+0x584/0x9f4 fs/ntfs3/namei.c:328 #5: ffff0000d55a8128 (&wnd->rw_lock/1){+.+.}-{4:4}, at: ntfs_look_free_mft+0x134/0xb1c fs/ntfs3/fsntfs.c:571 #6: ffff0000d8e134a8 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_extend_mft+0x108/0x394 fs/ntfs3/fsntfs.c:511 stack backtrace: CPU: 0 UID: 0 PID: 11388 Comm: syz.2.1714 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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:2043 check_noncircular+0x154/0x174 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868 down_write_nested+0x58/0xcc kernel/locking/rwsem.c:1706 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 ni_create_attr_list+0x804/0x1184 fs/ntfs3/frecord.c:826 ni_ins_attr_ext+0x3d0/0x9c8 fs/ntfs3/frecord.c:924 ni_insert_attr fs/ntfs3/frecord.c:1091 [inline] ni_insert_resident fs/ntfs3/frecord.c:1475 [inline] ni_add_name+0x5a0/0xae4 fs/ntfs3/frecord.c:2987 ni_rename+0x54/0x118 fs/ntfs3/frecord.c:3026 ntfs_rename+0x5bc/0x9f4 fs/ntfs3/namei.c:332 vfs_rename+0x9c0/0xc94 fs/namei.c:5216 do_renameat2+0x5ec/0x8a0 fs/namei.c:5364 __do_sys_renameat2 fs/namei.c:5398 [inline] __se_sys_renameat2 fs/namei.c:5395 [inline] __arm64_sys_renameat2+0xd8/0xf4 fs/namei.c:5395 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 ntfs3(loop2): ino=0, attr_set_size ntfs3(loop2): Mark volume as dirty due to NTFS errors