loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS' sector size (2048) and media sector size (512) ntfs3: loop0: ino=1b, "file0" ntfs_iget5 ============================================ WARNING: possible recursive locking detected 6.1.31-syzkaller #0 Not tainted -------------------------------------------- syz-executor204/3539 is trying to acquire lock: ffff888074e00100 (&ni->ni_lock){+.+.}-{3:3}, at: ntfs_set_state+0x217/0x6f0 fs/ntfs3/fsntfs.c:920 but task is already holding lock: ffff888074de5980 (&ni->ni_lock){+.+.}-{3:3}, at: ni_trylock fs/ntfs3/ntfs_fs.h:1124 [inline] ffff888074de5980 (&ni->ni_lock){+.+.}-{3:3}, at: ni_write_inode+0x151/0x1240 fs/ntfs3/frecord.c:3240 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&ni->ni_lock); lock(&ni->ni_lock); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by syz-executor204/3539: #0: ffff888028d96460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff888074de5c20 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline] #1: ffff888074de5c20 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: do_truncate+0x208/0x300 fs/open.c:63 #2: ffff888074de5980 (&ni->ni_lock){+.+.}-{3:3}, at: ni_trylock fs/ntfs3/ntfs_fs.h:1124 [inline] #2: ffff888074de5980 (&ni->ni_lock){+.+.}-{3:3}, at: ni_write_inode+0x151/0x1240 fs/ntfs3/frecord.c:3240 stack backtrace: CPU: 1 PID: 3539 Comm: syz-executor204 Not tainted 6.1.31-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_deadlock_bug kernel/locking/lockdep.c:2991 [inline] check_deadlock kernel/locking/lockdep.c:3034 [inline] validate_chain+0x4726/0x58e0 kernel/locking/lockdep.c:3819 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5056 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5669 __mutex_lock_common+0x1d4/0x2520 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 ntfs_set_state+0x217/0x6f0 fs/ntfs3/fsntfs.c:920 ntfs_iget5+0x39d/0x3750 fs/ntfs3/inode.c:520 ni_update_parent+0x802/0xc80 fs/ntfs3/frecord.c:3196 ni_write_inode+0xe7a/0x1240 fs/ntfs3/frecord.c:3291 ntfs_truncate fs/ntfs3/file.c:508 [inline] ntfs3_setattr+0x7c2/0xb70 fs/ntfs3/file.c:792 notify_change+0xdcd/0x1080 fs/attr.c:482 do_truncate+0x21c/0x300 fs/open.c:65 vfs_truncate+0x2dd/0x3a0 fs/open.c:111 do_sys_truncate+0xda/0x190 fs/open.c:134 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fab4af017a9 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:00007ffc73ed4d88 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fab4af017a9 RDX: 00007fab4aebfe23 RSI: 0000000000000003 RDI: 0000000020000000 RBP: 00007fab4aec1040 R08: 00000000000