ntfs3: loop3: Mark volume as dirty due to NTFS errors ============================================ WARNING: possible recursive locking detected 5.15.178-syzkaller #0 Not tainted -------------------------------------------- syz.3.305/5857 is trying to acquire lock: ffff0000e87e1e80 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline] ffff0000e87e1e80 (&ni->ni_lock/5){+.+.}-{3:3}, at: mi_read+0x26c/0x4d8 fs/ntfs3/record.c:148 but task is already holding lock: ffff0000e87e6fa0 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline] ffff0000e87e6fa0 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_rename+0x594/0xb10 fs/ntfs3/namei.c:315 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&ni->ni_lock/5); lock(&ni->ni_lock/5); *** DEADLOCK *** May be due to missing lock nesting notation 6 locks held by syz.3.305/5857: #0: ffff0000eb03e460 (sb_writers#26){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000e87e6ae0 (&type->i_mutex_dir_key#19/1){+.+.}-{3:3}, at: do_renameat2+0x534/0x10c0 fs/namei.c:4924 #2: ffff0000e87e7240 (&sb->s_type->i_mutex_key#32/4){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:824 [inline] #2: ffff0000e87e7240 (&sb->s_type->i_mutex_key#32/4){+.+.}-{3:3}, at: lock_two_nondirectories+0xc4/0x120 fs/inode.c:1124 #3: ffff0000e87e6840 (&ni->ni_lock/6){+.+.}-{3:3}, at: ni_lock_dir fs/ntfs3/ntfs_fs.h:1105 [inline] #3: ffff0000e87e6840 (&ni->ni_lock/6){+.+.}-{3:3}, at: ntfs_rename+0x584/0xb10 fs/ntfs3/namei.c:314 #4: ffff0000e87e6fa0 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline] #4: ffff0000e87e6fa0 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_rename+0x594/0xb10 fs/ntfs3/namei.c:315 #5: ffff0000eb03c120 (&wnd->rw_lock/1){+.+.}-{3:3}, at: ntfs_look_free_mft+0x190/0xd0c fs/ntfs3/fsntfs.c:542 stack backtrace: CPU: 0 PID: 5857 Comm: syz.3.305 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 __lock_acquire+0x62bc/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline] mi_read+0x26c/0x4d8 fs/ntfs3/record.c:148 mi_format_new+0x174/0x514 fs/ntfs3/record.c:374 ni_add_subrecord+0xd0/0x3c4 fs/ntfs3/frecord.c:372 ntfs_look_free_mft+0x4c8/0xd0c fs/ntfs3/fsntfs.c:686 ni_create_attr_list+0x764/0xf54 fs/ntfs3/frecord.c:850 ni_ins_attr_ext+0x328/0x99c fs/ntfs3/frecord.c:951 ni_insert_attr fs/ntfs3/frecord.c:1105 [inline] ni_insert_resident fs/ntfs3/frecord.c:1479 [inline] ni_add_name+0x544/0x818 fs/ntfs3/frecord.c:2985 ni_rename+0xc8/0x1d8 fs/ntfs3/frecord.c:3025 ntfs_rename+0x5c4/0xb10 fs/ntfs3/namei.c:318 vfs_rename+0xac8/0xe04 fs/namei.c:4832 do_renameat2+0xa00/0x10c0 fs/namei.c:4985 __do_sys_renameat2 fs/namei.c:5018 [inline] __se_sys_renameat2 fs/namei.c:5015 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5015 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584