From 275c38a5d24f52d011a2aa967a6fbf7ec9153dc2 Mon Sep 17 00:00:00 2001
From: Jonathan Hui <jonhui@google.com>
Date: Thu, 26 Mar 2020 21:32:16 -0700
Subject: [PATCH] [meshcop] reduce maximum number types in MGMT_GET.req (#4740)

---
 src/core/meshcop/dataset.hpp         | 1 +
 src/core/meshcop/dataset_manager.cpp | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/meshcop/dataset.hpp b/src/core/meshcop/dataset.hpp
index e21980238..a2fc522f8 100644
--- a/src/core/meshcop/dataset.hpp
+++ b/src/core/meshcop/dataset.hpp
@@ -56,6 +56,7 @@ public:
     {
         kMaxSize      = 256, ///< Maximum size of MeshCoP Dataset (bytes)
         kMaxValueSize = 16,  ///< Maximum size of each Dataset TLV value (bytes)
+        kMaxGetTypes  = 64,  ///< Maximum number of types in MGMT_GET.req
     };
 
     /**
diff --git a/src/core/meshcop/dataset_manager.cpp b/src/core/meshcop/dataset_manager.cpp
index 190c6ee80..0a3470b0e 100644
--- a/src/core/meshcop/dataset_manager.cpp
+++ b/src/core/meshcop/dataset_manager.cpp
@@ -299,7 +299,7 @@ void DatasetManager::HandleGet(const Coap::Message &aMessage, const Ip6::Message
 {
     Tlv      tlv;
     uint16_t offset = aMessage.GetOffset();
-    uint8_t  tlvs[Dataset::kMaxSize];
+    uint8_t  tlvs[Dataset::kMaxGetTypes];
     uint8_t  length = 0;
 
     while (offset < aMessage.GetLength())