From d0c81a8136bdbf9f9ca40856dd43e1dc1f703b5d Mon Sep 17 00:00:00 2001
From: Jordan Bancino <jordan@bancino.net>
Date: Tue, 6 Dec 2022 21:26:33 +0000
Subject: [PATCH] Fix potential memory leak if duplicate keys exist in a JSON
 object.

---
 src/Json.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Json.c b/src/Json.c
index d0236ea..8269d29 100644
--- a/src/Json.c
+++ b/src/Json.c
@@ -947,7 +947,8 @@ JsonDecodeObject(JsonParserState * state)
                 goto error;
             }
 
-            HashMapSet(obj, key, value);
+            /* If there's an existing value at this key, discard it. */
+            JsonValueFree(HashMapSet(obj, key, value));
 
             JsonTokenSeek(state);
             if (JsonExpect(state, TOKEN_OBJECT_CLOSE))