diff --git a/package/ead/src/ead-client.c b/package/ead/src/ead-client.c
index 111dc8ac6..14e04c40b 100644
--- a/package/ead/src/ead-client.c
+++ b/package/ead/src/ead-client.c
@@ -143,7 +143,10 @@ static bool
 handle_pong(void)
 {
 	struct ead_msg_pong *pong = EAD_DATA(msg, pong);
-	int len = msg->len - sizeof(struct ead_msg_pong);
+	int len = ntohl(msg->len) - sizeof(struct ead_msg_pong);
+
+	if (len <= 0)
+		return false;
 
 	pong->name[len] = 0;
 	auth_type = ntohs(pong->auth_type);
diff --git a/package/ead/src/ead.c b/package/ead/src/ead.c
index 7367c3865..c4d3dd9f4 100644
--- a/package/ead/src/ead.c
+++ b/package/ead/src/ead.c
@@ -330,7 +330,7 @@ handle_ping(struct ead_packet *pkt, int len, int *nstate)
 
 	msg->len = htonl(sizeof(struct ead_msg_pong) + slen);
 	strncpy(pong->name, dev_name, slen);
-	pong->name[len] = 0;
+	pong->name[slen] = 0;
 	pong->auth_type = htons(EAD_AUTH_MD5);
 
 	return true;