static int iscsi_create(const char *filename, QemuOpts *opts, Error **errp)
{
    int ret = 0;
    int64_t total_size = 0;
    BlockDriverState *bs;
    IscsiLun *iscsilun = NULL;
    QDict *bs_options;

    bs = bdrv_new();

    /* Read out options */
    total_size = DIV_ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
                              BDRV_SECTOR_SIZE);
    bs->opaque = g_new0(struct IscsiLun, 1);
    iscsilun = bs->opaque;

    bs_options = qdict_new();
    qdict_put(bs_options, "filename", qstring_from_str(filename));
    ret = iscsi_open(bs, bs_options, 0, NULL);
    QDECREF(bs_options);

    if (ret != 0) {
        goto out;
    }
    iscsi_detach_aio_context(bs);
    if (iscsilun->type != TYPE_DISK) {
        ret = -ENODEV;
        goto out;
    }
    if (bs->total_sectors < total_size) {
        ret = -ENOSPC;
        goto out;
    }

    ret = 0;
out:
    if (iscsilun->iscsi != NULL) {
        iscsi_destroy_context(iscsilun->iscsi);
    }
    g_free(bs->opaque);
    bs->opaque = NULL;
    bdrv_unref(bs);
    return ret;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.