ntfs3: loop0: Mark volume as dirty due to NTFS errors ============================================ WARNING: possible recursive locking detected 6.9.0-syzkaller-08544-g4b377b4868ef #0 Not tainted -------------------------------------------- syz-executor299/5091 is trying to acquire lock: ffff888079d39e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline] ffff888079d39e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x2e1/0x5a0 fs/ntfs3/record.c:148 but task is already holding lock: ffff888079ef0fc0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline] ffff888079ef0fc0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf9/0x1f0 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-executor299/5091: #0: ffff888079ef1260 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:801 [inline] #0: ffff888079ef1260 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1708 #1: ffff888079ef0fc0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline] #1: ffff888079ef0fc0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf9/0x1f0 fs/ntfs3/namei.c:84 stack backtrace: CPU: 1 PID: 5091 Comm: syz-executor299 Not tainted 6.9.0-syzkaller-08544-g4b377b4868ef #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 check_deadlock kernel/locking/lockdep.c:3062 [inline] validate_chain+0x15c1/0x58e0 kernel/locking/lockdep.c:3856 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1123 [inline] mi_read+0x2e1/0x5a0 fs/ntfs3/record.c:148 ntfs_read_mft fs/ntfs3/inode.c:70 [inline] ntfs_iget5+0x493/0x3a80 fs/ntfs3/inode.c:538 dir_search_u+0x2fe/0x3a0 fs/ntfs3/dir.c:264 ntfs_lookup+0x106/0x1f0 fs/ntfs3/namei.c:85 __lookup_slow+0x28e/0x3f0 fs/namei.c:1692 lookup_slow+0x53/0x70 fs/namei.c:1709 walk_component+0x2e1/0x410 fs/namei.c:2004 lookup_last fs/namei.c:2469 [inline] path_lookupat+0x16f/0x450 fs/namei.c:2493 do_o_path+0x95/0x230 fs/namei.c:3778 path_openat+0x2aa0/0x3240 fs/namei.c:3800 do_filp_open+0x235/0x490 fs/namei.c:3834 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_open fs/open.c:1429 [inline] __se_sys_open fs/open.c:1425 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1425 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7eff30237a99 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffda36b7a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007eff30237a99 RDX: 0000000000000030 RSI: 0000000000220bc3 RDI: 0000000020000080 RBP: 00007eff302c95f0 R08: 0000555564deb4c0 R09: 0000555564deb4c0 R10: 000000000001f196 R11: 0000000000000246 R12: 00007ffda36b7a60 R13: 00007ffda36b7c88 R14: 431bde82d7b634db R15: 00007eff3028003b