Given the following code containing errors, provide Common Weakness Enumeration (CWE) identifiers and corresponding messages in JSON format. Each identified weakness should have a unique entry in the JSON array.
    Code: static int vdi_create(const char *filename, QEMUOptionParameter *options,
                      Error **errp)
{
    int fd;
    int result = 0;
    uint64_t bytes = 0;
    uint32_t blocks;
    size_t block_size = DEFAULT_CLUSTER_SIZE;
    uint32_t image_type = VDI_TYPE_DYNAMIC;
    VdiHeader header;
    size_t i;
    size_t bmap_size;

    logout("\n");

    /* Read out options. */
    while (options && options->name) {
        if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
            bytes = options->value.n;
#if defined(CONFIG_VDI_BLOCK_SIZE)
        } else if (!strcmp(options->name, BLOCK_OPT_CLUSTER_SIZE)) {
            if (options->value.n) {
                /* TODO: Additional checks (SECTOR_SIZE * 2^n, ...). */
                block_size = options->value.n;
            }
#endif
#if defined(CONFIG_VDI_STATIC_IMAGE)
        } else if (!strcmp(options->name, BLOCK_OPT_STATIC)) {
            if (options->value.n) {
                image_type = VDI_TYPE_STATIC;
            }
#endif
        }
        options++;
    }

    fd = qemu_open(filename,
                   O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE,
                   0644);
    if (fd < 0) {
        return -errno;
    }

    /* We need enough blocks to store the given disk size,
       so always round up. */
    blocks = (bytes + block_size - 1) / block_size;

    bmap_size = blocks * sizeof(uint32_t);
    bmap_size = ((bmap_size + SECTOR_SIZE - 1) & ~(SECTOR_SIZE -1));

    memset(&header, 0, sizeof(header));
    pstrcpy(header.text, sizeof(header.text), VDI_TEXT);
    header.signature = VDI_SIGNATURE;
    header.version = VDI_VERSION_1_1;
    header.header_size = 0x180;
    header.image_type = image_type;
    header.offset_bmap = 0x200;
    header.offset_data = 0x200 + bmap_size;
    header.sector_size = SECTOR_SIZE;
    header.disk_size = bytes;
    header.block_size = block_size;
    header.blocks_in_image = blocks;
    if (image_type == VDI_TYPE_STATIC) {
        header.blocks_allocated = blocks;
    }
    uuid_generate(header.uuid_image);
    uuid_generate(header.uuid_last_snap);
    /* There is no need to set header.uuid_link or header.uuid_parent here. */
#if defined(CONFIG_VDI_DEBUG)
    vdi_header_print(&header);
#endif
    vdi_header_to_le(&header);
    if (write(fd, &header, sizeof(header)) < 0) {
        result = -errno;
    }

    if (bmap_size > 0) {
        uint32_t *bmap = g_malloc0(bmap_size);
        for (i = 0; i < blocks; i++) {
            if (image_type == VDI_TYPE_STATIC) {
                bmap[i] = i;
            } else {
                bmap[i] = VDI_UNALLOCATED;
            }
        }
        if (write(fd, bmap, bmap_size) < 0) {
            result = -errno;
        }
        g_free(bmap);
    }

    if (image_type == VDI_TYPE_STATIC) {
        if (ftruncate(fd, sizeof(header) + bmap_size + blocks * block_size)) {
            result = -errno;
        }
    }

    if (close(fd) < 0) {
        result = -errno;
    }

    return result;
} ; Sample JSON Format Confermily Expected output: "examples" => "cwe": "xxx"; "message": "xxx"
    
 'cwe': ['CWE-20'], 'message': 'vdi: add bounds checks for blocks_in_image and disk_size header fields (CVE-2014-0144)

The maximum blocks_in_image is 0xffffffff / 4, which also limits the
maximum disk_size for a VDI image to 1024TB.  Note that this is the maximum
size that QEMU will currently support with this driver, not necessarily the
maximum size allowed by the image format.

This also fixes an incorrect error message, a bug introduced by commit
5b7aa9b56d1bfc79916262f380c3fc7961becb50 (Reported by Stefan Weil)

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>'