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 15 has zero dtime. Fix? no Inode 16 has illegal block(s). Clear? no Illegal block #5 (4294967291) in inode 16. IGNORED. Illegal block #6 (4294967295) in inode 16. IGNORED. Inode 16, i_blocks is 18, should be 14. Fix? no Inode 13 has illegal block(s). Clear? no Illegal block #11 (8388608) in inode 13. IGNORED. 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 **********