diff --git a/src/lynq/lib/liblynq-wifi6/libwifi6.c b/src/lynq/lib/liblynq-wifi6/libwifi6.c
index c682976..e98c229 100755
--- a/src/lynq/lib/liblynq-wifi6/libwifi6.c
+++ b/src/lynq/lib/liblynq-wifi6/libwifi6.c
@@ -1176,7 +1176,10 @@
 	int pass_len;
     char lynq_tmp_cmd[MAX_CMD] = {0};
     char lynq_wep_tx_keyidx_cmd[MAX_CMD] = {0};
-	pass_len=strlen(password);
+    if( password == NULL ){
+        return -1;
+    }
+    pass_len=strlen(password);
     lynq_wifi_auth_s auth = -1;
     if(pass_len < 8 || pass_len >= 64){
 		return -1;