fsck.ext4 -n exited with status code 4
e2fsck 1.47.0 (5-Feb-2023)
syzkaller contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Group 0's block bitmap (2) is bad.  Relocate? no

Inode 16, i_blocks is 7, should be 64.  Fix? no

Pass 2: Checking directory structure
Second entry '^E^@' (inode=2) in directory inode 11 should be '..'
Fix? no

Entry '^E^@' in ... (11) has illegal characters in its name.
Fix? no

Pass 3: Checking directory connectivity
'..' in /lost+found (11) is <The NULL inode> (0), should be / (2).
Fix? no

Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  -(112--496)
Fix? no

Free blocks count wrong for group #0 (150994969, counted=0).
Fix? no

Free blocks count wrong (400, counted=0).
Fix? no


syzkaller: ********** WARNING: Filesystem still has errors **********

syzkaller: 17/32 files (0.0% non-contiguous), 112/512 blocks