From f9af08c0ada99d7fc5187446bfdbc3ad594ef2f9 Mon Sep 17 00:00:00 2001
From: George Beckstein <donbeckstein@live.com>
Date: Fri, 9 Oct 2020 09:47:05 -0400
Subject: [PATCH] Add error if allocation of cccd attribute fails

---
 .../FEATURE_BLE/source/cordio/source/GattServerImpl.cpp  | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/connectivity/FEATURE_BLE/source/cordio/source/GattServerImpl.cpp b/connectivity/FEATURE_BLE/source/cordio/source/GattServerImpl.cpp
index 00b25d5750..24c8c35805 100644
--- a/connectivity/FEATURE_BLE/source/cordio/source/GattServerImpl.cpp
+++ b/connectivity/FEATURE_BLE/source/cordio/source/GattServerImpl.cpp
@@ -23,6 +23,8 @@
 #include "wsf_types.h"
 #include "att_api.h"
 
+#include <new>
+
 namespace ble {
 namespace impl {
 
@@ -593,13 +595,18 @@ ble_error_t GattServer::insert_cccd(
      *
      * Ownership is passed to the GattCharacteristic
      */
-    GattAttribute* implicit_cccd = new GattAttribute(
+    GattAttribute* implicit_cccd = new (std::nothrow) GattAttribute(
                                        CCCD_UUID,
                                        attribute_it->pValue,
                                        *attribute_it->pLen,
                                        attribute_it->maxLen,
                                        false);
 
+    if(implicit_cccd == nullptr) {
+        currentHandle--;
+        return BLE_ERROR_NO_MEM;
+    }
+
     implicit_cccd->setHandle(cccds[cccd_cnt].handle);
     implicit_cccd->allowRead(true);
     implicit_cccd->allowWrite(true);