From 86e1f2a4d4140f0cf9e35e66b4ca3be022a572fb Mon Sep 17 00:00:00 2001
From: Buke Po <bukepo@gmail.com>
Date: Fri, 4 Aug 2017 23:49:11 +0800
Subject: [PATCH] [ip6] free message if error occurred in Ip6::SendRaw()
 (#2063)

---
 src/core/net/ip6.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/core/net/ip6.cpp b/src/core/net/ip6.cpp
index 844815d0a..fc86b97a5 100644
--- a/src/core/net/ip6.cpp
+++ b/src/core/net/ip6.cpp
@@ -664,6 +664,7 @@ otError Ip6::SendRaw(Message &aMessage, int8_t aInterfaceId)
     otError error = OT_ERROR_NONE;
     Header header;
     MessageInfo messageInfo;
+    bool freed = false;
 
     SuccessOrExit(error = header.Init(aMessage));
 
@@ -679,8 +680,15 @@ otError Ip6::SendRaw(Message &aMessage, int8_t aInterfaceId)
     }
 
     error = HandleDatagram(aMessage, NULL, aInterfaceId, NULL, true);
+    freed = true;
 
 exit:
+
+    if (!freed)
+    {
+        aMessage.Free();
+    }
+
     return error;
 }