fsck.ext4 -n exited with status code 12
e2fsck 1.47.0 (5-Feb-2023)
Group descriptor 0 marked uninitialized without feature set.
Fix? no

syzkaller contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Inode 2 is a zero-length directory.  Clear? no

Inode 2, i_size is 1024, should be 0.  Fix? no

Inode 2, i_blocks is 2, should be 0.  Fix? no

Deleted inode 11 has zero dtime.  Fix? no

Deleted inode 15 has zero dtime.  Fix? no

Inode 13 has illegal block(s).  Clear? no

Illegal indirect block (234881024) in inode 13.  IGNORED.
Error while iterating over blocks in inode 13: Illegal indirect block found

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

e2fsck: aborted

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