diff --git a/resource_manager/src/ResourceManager.cpp b/resource_manager/src/ResourceManager.cpp
index b255cec23fdac33919a982caa97d5950314db0ad..b7d299af40a3b547e8eb4ad62a9e97caceeed891 100644
--- a/resource_manager/src/ResourceManager.cpp
+++ b/resource_manager/src/ResourceManager.cpp
@@ -187,6 +187,8 @@ std::vector<std::pair<int32_t, std::string>> ResourceManager::deviceLinkName {
     {PAL_DEVICE_IN_HANDSET_VA_MIC,        {std::string{ "" }}},
     {PAL_DEVICE_IN_BLUETOOTH_A2DP,        {std::string{ "" }}},
     {PAL_DEVICE_IN_HEADSET_VA_MIC,        {std::string{ "" }}},
+    {PAL_DEVICE_IN_EXT_EC_REF,            {std::string{ "none" }}},
+    {PAL_DEVICE_IN_MAX,                   {std::string{ "" }}},
 };
 
 std::vector<std::pair<int32_t, int32_t>> ResourceManager::devicePcmId {
@@ -226,6 +228,8 @@ std::vector<std::pair<int32_t, int32_t>> ResourceManager::devicePcmId {
     {PAL_DEVICE_IN_HANDSET_VA_MIC,        0},
     {PAL_DEVICE_IN_BLUETOOTH_A2DP,        0},
     {PAL_DEVICE_IN_HEADSET_VA_MIC,        0},
+    {PAL_DEVICE_IN_EXT_EC_REF,            0},
+    {PAL_DEVICE_IN_MAX,                   0},
 };
 
 // To be defined in detail
@@ -266,7 +270,9 @@ std::vector<std::pair<int32_t, std::string>> ResourceManager::sndDeviceNameLUT {
     {PAL_DEVICE_IN_HANDSET_VA_MIC,        {std::string{ "" }}},
     {PAL_DEVICE_IN_BLUETOOTH_A2DP,        {std::string{ "" }}},
     {PAL_DEVICE_IN_HEADSET_VA_MIC,        {std::string{ "" }}},
-    {PAL_DEVICE_IN_VI_FEEDBACK,           {std::string{ "" }}}
+    {PAL_DEVICE_IN_VI_FEEDBACK,           {std::string{ "" }}},
+    {PAL_DEVICE_IN_EXT_EC_REF,            {std::string{ "none" }}},
+    {PAL_DEVICE_IN_MAX,                   {std::string{ "" }}},
 };
 
 const std::map<std::string, uint32_t> usecaseIdLUT {
@@ -448,6 +454,8 @@ std::vector<std::pair<int32_t, std::string>> ResourceManager::listAllBackEndIds
     {PAL_DEVICE_IN_BLUETOOTH_A2DP,        {std::string{ "" }}},
     {PAL_DEVICE_IN_HEADSET_VA_MIC,        {std::string{ "none" }}},
     {PAL_DEVICE_IN_VI_FEEDBACK,           {std::string{ "" }}},
+    {PAL_DEVICE_IN_EXT_EC_REF,            {std::string{ "none" }}},
+    {PAL_DEVICE_IN_MAX,                   {std::string{ "" }}},
 };
 
 void agmServiceCrashHandler(uint64_t cookie __unused)
@@ -4782,7 +4790,7 @@ void ResourceManager::updateSndName(int32_t deviceId, std::string sndName)
 
 void ResourceManager::updateBackEndName(int32_t deviceId, std::string backEndName)
 {
-    if (isValidDevId(deviceId)) {
+    if (isValidDevId(deviceId) && deviceId < listAllBackEndIds.size()) {
         listAllBackEndIds[deviceId].second = backEndName;
     } else {
         PAL_ERR(LOG_TAG, "Invalid device id %d", deviceId);