5.3.9 ext4: System hang when processing corrupted orphaned inode list

If the orphaned inode list is corrupted, the inode might be processed repeatedly, which results in a system hang. For example, if the orphaned inode list contains a reference to the bootloader inode, ext4_iget(), returns a bad inode, it results in a processing loop that can hang the system. (Bug ID 24433290)