ntfs3: loop0: Mark volume as dirty due to NTFS errors ============================================ WARNING: possible recursive locking detected 6.7.0-syzkaller-13004-g4fbbed787267 #0 Not tainted -------------------------------------------- syz-executor372/5050 is trying to acquire lock: ffff888071650860 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1124 [inline] ffff888071650860 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x2e1/0x5a0 fs/ntfs3/record.c:148 but task is already holding lock: ffff888071655220 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1124 [inline] ffff888071655220 (&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-executor372/5050: #0: ffff8880716554c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff8880716554c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1709 #1: ffff888071655220 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1124 [inline] #1: ffff888071655220 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf9/0x1f0 fs/ntfs3/namei.c:84 stack backtrace: CPU: 0 PID: 5050 Comm: syz-executor372 Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 check_deadlock kernel/locking/lockdep.c:3062 [inline] validate_chain+0x15dd/0x5ab0 kernel/locking/lockdep.c:3856 __lock_acquire+0x1345/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd60 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1124 [inline] mi_read+0x2e1/0x5a0 fs/ntfs3/record.c:148 ntfs_read_mft fs/ntfs3/inode.c:70 [inline] ntfs_iget5+0x4d1/0x3b70 fs/ntfs3/inode.c:534 dir_search_u+0x2fa/0x3a0 fs/ntfs3/dir.c:264 ntfs_lookup+0x106/0x1f0 fs/ntfs3/namei.c:85 __lookup_slow+0x282/0x3e0 fs/namei.c:1693 lookup_slow+0x53/0x70 fs/namei.c:1710 walk_component+0x2d0/0x400 fs/namei.c:2001 lookup_last fs/namei.c:2458 [inline] path_lookupat+0x16f/0x450 fs/namei.c:2482 do_o_path+0x95/0x230 fs/namei.c:3769 path_openat+0x2a63/0x31e0 fs/namei.c:3791 do_filp_open+0x234/0x490 fs/namei.c:3825 do_sys_openat2+0x13e/0x1d0 fs/open.c:1404 do_sys_open fs/open.c:1419 [inline] __do_sys_open fs/open.c:1427 [inline] __se_sys_open fs/open.c:1423 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1423 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fa789c96a59 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:00007fff2d91ad18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fa789c96a59 RDX: 0000000000000030 RSI: 0000000000220bc3 RDI: 0000000020000080 RBP: 00007fa789d285f0 R08: 00005555564874c0 R09: 00005555564874c0 R10: 000000000001f196 R11: 0000000000000246 R12: 00007fff2d91ad40 R13: 00007fff2d91af68 R14: 431bde82d7b634db R15: 00007fa789cdf03b