plugin: add check on the type json object during the IO message handling

gavatron1010 · Jul 14, 2022 · b624c53 · b624c53
1 parent d284b98
commit b624c53
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/lightningd/plugin.c b/lightningd/plugin.c
@@ -643,6 +643,11 @@ static const char *plugin_read_json_one(struct plugin *plugin,
 		return NULL;
 	}
 
+	if (plugin->toks->type != JSMN_OBJECT)
+		return tal_fmt(
+		    plugin,
+		    "JSON-RPC message is not a valid JSON object type");
+
 	jrtok = json_get_member(plugin->buffer, plugin->toks, "jsonrpc");
 	idtok = json_get_member(plugin->buffer, plugin->toks, "id");