ntfs3: loop0: Mark volume as dirty due to NTFS errors ============================================ WARNING: possible recursive locking detected 6.4.0-rc6-syzkaller-00242-g1639fae5132b #0 Not tainted -------------------------------------------- syz-executor139/4997 is trying to acquire lock: ffff888076741e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ffff888076741e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x35b/0x5b0 fs/ntfs3/record.c:148 but task is already holding lock: ffff888076746840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ffff888076746840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0x1bb/0x2a0 fs/ntfs3/namei.c:84 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&ni->ni_lock/4); lock(&ni->ni_lock/4); *** DEADLOCK *** May be due to missing lock nesting notation 2 locks held by syz-executor139/4997: #0: ffff888076746ae0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:785 [inline] #0: ffff888076746ae0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: lookup_slow fs/namei.c:1706 [inline] #0: ffff888076746ae0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: walk_component+0x332/0x5a0 fs/namei.c:1998 #1: ffff888076746840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] #1: ffff888076746840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0x1bb/0x2a0 fs/ntfs3/namei.c:84 stack backtrace: CPU: 0 PID: 4997 Comm: syz-executor139 Not tainted 6.4.0-rc6-syzkaller-00242-g1639fae5132b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_deadlock_bug kernel/locking/lockdep.c:3006 [inline] check_deadlock kernel/locking/lockdep.c:3049 [inline] validate_chain kernel/locking/lockdep.c:3834 [inline] __lock_acquire+0x13eb/0x5f30 kernel/locking/lockdep.c:5088 lock_acquire kernel/locking/lockdep.c:5705 [inline] lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5670 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x12f/0x1350 kernel/locking/mutex.c:747 ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] mi_read+0x35b/0x5b0 fs/ntfs3/record.c:148 ntfs_read_mft fs/ntfs3/inode.c:69 [inline] ntfs_iget5+0x47d/0x3670 fs/ntfs3/inode.c:530 dir_search_u+0x36e/0x3f0 fs/ntfs3/dir.c:264 ntfs_lookup+0x1c8/0x2a0 fs/ntfs3/namei.c:85 __lookup_slow+0x24c/0x460 fs/namei.c:1690 lookup_slow fs/namei.c:1707 [inline] walk_component+0x33f/0x5a0 fs/namei.c:1998 lookup_last fs/namei.c:2455 [inline] path_lookupat+0x1ba/0x840 fs/namei.c:2479 filename_lookup+0x1d2/0x590 fs/namei.c:2508 user_path_at_empty+0x46/0x60 fs/namei.c:2907 user_path_at include/linux/namei.h:57 [inline] path_setxattr+0x92/0x1c0 fs/xattr.c:667 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __x64_sys_setxattr+0xc4/0x160 fs/xattr.c:684 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6f680517a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc9ecb81b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 0030656c69662f2e R