From 525006f97b11e02b6e78b015340c0413c33bce0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Mo=C5=84?= <desowin@gmail.com>
Date: Fri, 26 Mar 2021 15:47:28 +0100
Subject: [PATCH] protobuf: free memory used by scanner after parsing

Closes #17305
---
 epan/protobuf_lang_parser.lemon | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/epan/protobuf_lang_parser.lemon b/epan/protobuf_lang_parser.lemon
index 4aa1b9b85d..4446f64a36 100644
--- a/epan/protobuf_lang_parser.lemon
+++ b/epan/protobuf_lang_parser.lemon
@@ -664,6 +664,8 @@ int run_pbl_parser(pbl_descriptor_pool_t* pool)
             ProtobufLangParser(state.pParser, 0, NULL, &state);
         }
 
+        protobuf_lang_lex_destroy(scanner);
+
         /* remove the parsed file from list */
         pool->proto_files_to_be_parsed = it = g_slist_delete_link(pool->proto_files_to_be_parsed, it);
     }