ntfs3: loop4: ino=5, "/" ntfs_iget5 ============================================ WARNING: possible recursive locking detected 6.6.0-syzkaller-14142-g90b0c2b2edd1 #0 Not tainted -------------------------------------------- syz-executor.4/5663 is trying to acquire lock: ffff88803fbbbc00 (&ni->ni_lock#2){+.+.}-{3:3}, at: ntfs_set_state+0x1d2/0x6a0 fs/ntfs3/fsntfs.c:946 but task is already holding lock: ffff8880891ee840 (&ni->ni_lock#2){+.+.}-{3:3}, at: ni_trylock fs/ntfs3/ntfs_fs.h:1144 [inline] ffff8880891ee840 (&ni->ni_lock#2){+.+.}-{3:3}, at: ni_write_inode+0x1c6/0x2850 fs/ntfs3/frecord.c:3262 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&ni->ni_lock#2); lock(&ni->ni_lock#2); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by syz-executor.4/5663: #0: ffff888078302418 (sb_writers#17){.+.+}-{0:0}, at: do_open fs/namei.c:3615 [inline] #0: ffff888078302418 (sb_writers#17){.+.+}-{0:0}, at: path_openat+0x1f93/0x2c40 fs/namei.c:3779 #1: ffff8880891eeae0 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #1: ffff8880891eeae0 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x14b/0x220 fs/open.c:64 #2: ffff8880891ee840 (&ni->ni_lock#2){+.+.}-{3:3}, at: ni_trylock fs/ntfs3/ntfs_fs.h:1144 [inline] #2: ffff8880891ee840 (&ni->ni_lock#2){+.+.}-{3:3}, at: ni_write_inode+0x1c6/0x2850 fs/ntfs3/frecord.c:3262 stack backtrace: CPU: 1 PID: 5663 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-14142-g90b0c2b2edd1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 check_deadlock kernel/locking/lockdep.c:3062 [inline] validate_chain kernel/locking/lockdep.c:3855 [inline] __lock_acquire+0x2971/0x5de0 kernel/locking/lockdep.c:5136 lock_acquire kernel/locking/lockdep.c:5753 [inline] lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x181/0x1340 kernel/locking/mutex.c:747 ntfs_set_state+0x1d2/0x6a0 fs/ntfs3/fsntfs.c:946 ntfs_iget5+0x241/0x3810 fs/ntfs3/inode.c:537 ni_update_parent fs/ntfs3/frecord.c:3218 [inline] ni_write_inode+0x1518/0x2850 fs/ntfs3/frecord.c:3321 ntfs_truncate fs/ntfs3/file.c:408 [inline] ntfs3_setattr+0x6a0/0xb70 fs/ntfs3/file.c:683 notify_change+0x742/0x11c0 fs/attr.c:499 do_truncate+0x15c/0x220 fs/open.c:66 handle_truncate fs/namei.c:3280 [inline] do_open fs/namei.c:3626 [inline] path_openat+0x2601/0x2c40 fs/namei.c:3779 do_filp_open+0x1de/0x430 fs/namei.c:3809 do_sys_openat2+0x176/0x1e0 fs/open.c:1440 do_sys_open fs/open.c:1455 [inline] __do_sys_creat fs/open.c:1531 [inline] __se_sys_creat fs/open.c:1525 [inline] __x64_sys_creat+0xcd/0x120 fs/open.c:1525 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f87cde7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f87cc9fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f87cdf9bf80 RCX: 00007f87cde7cae9 RDX: 0000000000000000 RSI: 0000000000000042 RDI: 0000000020000bc0 RBP: 00007f87cdec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f87cdf9bf80 R15: 00007ffcd22b2f48 ntfs3: loop4: Mark volume as dirty due to NTFS errors