====================================================== WARNING: possible circular locking dependency detected 5.15.131-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor162/6651 is trying to acquire lock: ffff0000dc1ce840 (&ni->ni_lock){+.+.}-{3:3}, at: ntfs_set_state+0x1a4/0x5c4 fs/ntfs3/fsntfs.c:925 but task is already holding lock: ffff0000deba5980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] ffff0000deba5980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf8/0x1f8 fs/ntfs3/namei.c:82 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ni->ni_lock/4){+.+.}-{3:3}: __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:1110 [inline] mi_read+0x26c/0x4d8 fs/ntfs3/record.c:148 ntfs_read_mft fs/ntfs3/inode.c:69 [inline] ntfs_iget5+0x358/0x2bcc fs/ntfs3/inode.c:524 ni_update_parent+0x688/0xa58 fs/ntfs3/frecord.c:3148 ni_write_inode+0x8a0/0xe38 fs/ntfs3/frecord.c:3246 ntfs_sync_inode+0x2c/0x3c fs/ntfs3/inode.c:1041 ntfs_truncate fs/ntfs3/file.c:510 [inline] ntfs3_setattr+0x784/0x974 fs/ntfs3/file.c:771 notify_change+0xac4/0xd60 fs/attr.c:489 do_truncate+0x1c0/0x28c fs/open.c:65 do_sys_ftruncate+0x288/0x31c fs/open.c:193 __do_sys_ftruncate fs/open.c:204 [inline] __se_sys_ftruncate fs/open.c:202 [inline] __arm64_sys_ftruncate+0x60/0x74 fs/open.c:202 __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:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #0 (&ni->ni_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3787 [inline] __lock_acquire+0x32cc/0x7620 kernel/locking/lockdep.c:5011 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5622 __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 ntfs_set_state+0x1a4/0x5c4 fs/ntfs3/fsntfs.c:925 ntfs_iget5+0x710/0x2bcc fs/ntfs3/inode.c:531 dir_search_u+0x298/0x324 fs/ntfs3/dir.c:264 ntfs_lookup+0x108/0x1f8 fs/ntfs3/namei.c:83 lookup_open fs/namei.c:3370 [inline] open_last_lookups fs/namei.c:3462 [inline] path_openat+0xc9c/0x26f0 fs/namei.c:3669 do_filp_open+0x1a8/0x3b4 fs/namei.c:3699 do_sys_openat2+0x128/0x3d8 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238 __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:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ni->ni_lock/4); lock(&ni->ni_lock); lock(&ni->ni_lock/4); lock(&ni->ni_lock); *** DEADLOCK *** 3 locks held by syz-executor162/6651: #0: ffff0000d1046460 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000deba5c20 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000deba5c20 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: open_last_lookups fs/namei.c:3459 [inline] #1: ffff0000deba5c20 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: path_openat+0x63c/0x26f0 fs/namei.c:3669 #2: ffff0000deba5980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1110 [inline] #2: ffff0000deba5980 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf8/0x1f8 fs/ntfs3/namei.c:82 stack backtrace: CPU: 1 PID: 6651 Comm: syz-executor162 Not tainted 5.15.131-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 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 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3787 [inline] __lock_acquire+0x32cc/0x7620 kernel/locking/lockdep.c:5011 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5622 __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 ntfs_set_state+0x1a4/0x5c4 fs/ntfs3/fsntfs.c:925 ntfs_iget5+0x710/0x2bcc fs/ntfs3/inode.c:531 dir_search_u+0x298/0x324 fs/ntfs3/dir.c:264 ntfs_lookup+0x108/0x1f8 fs/ntfs3/namei.c:83 lookup_open fs/namei.c:3370 [inline] open_last_lookups fs/namei.c:3462 [inline] path_openat+0xc9c/0x26f0 fs/namei.c:3669 do_filp_open+0x1a8/0x3b4 fs/namei.c:3699 do_sys_openat2+0x128/0x3d8 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238 __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:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 ntfs3: loop1: Mark volume as dirty due to NTFS errors