diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index e5dbd1923b7b..125ef2c65d5f 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -1149,6 +1149,12 @@ static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,
 	if (!len)
 		return -EINVAL;
 
+	if (len > NVMET_MN_MAX_SIZE) {
+		pr_err("Model nubmer size can not exceed %d Bytes\n",
+		       NVMET_MN_MAX_SIZE);
+		return -EINVAL;
+	}
+
 	for (pos = 0; pos < len; pos++) {
 		if (!nvmet_is_ascii(page[pos]))
 			return -EINVAL;
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 24e261bf153a..5566ed403576 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -27,6 +27,7 @@
 #define NVMET_ERROR_LOG_SLOTS		128
 #define NVMET_NO_ERROR_LOC		((u16)-1)
 #define NVMET_DEFAULT_CTRL_MODEL	"Linux"
+#define NVMET_MN_MAX_SIZE		40
 
 /*
  * Supported optional AENs: