Cc: Ye Ting <ting.ye@intel.com>
Cc: Wu Jiaxin <jiaxin.wu@intel.com>
Cc: Wang Fan <fan.wang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
---
 NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c  | 27 +++++++++++++++++++++------
 NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c |  5 ++++-
 2 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c b/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c
index 327b4cf1cf..7c2baa8eac 100644
--- a/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c
+++ b/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c
@@ -548,6 +548,7 @@ PxeBcExtractBootFileUrl (
     if (ModeStr != NULL && *(ModeStr + AsciiStrLen (";mode=octet")) == '\0') {
       *ModeStr = '\0';
     } else if (AsciiStrStr (BootFileNamePtr, ";mode=") != NULL) {
+      FreePool (TmpStr);
       return EFI_INVALID_PARAMETER;
     }
 
@@ -1005,7 +1006,7 @@ PxeBcRequestBootService (
                     );
 
   if (EFI_ERROR (Status)) {
-    return Status;
+    goto ON_ERROR;
   }
 
   //
@@ -1020,7 +1021,7 @@ PxeBcRequestBootService (
   //
   Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);
   if (EFI_ERROR (Status)) {
-    return Status;
+    goto ON_ERROR;
   }
     
   Status = PxeBc->UdpRead (
@@ -1041,7 +1042,7 @@ PxeBcRequestBootService (
   Private->Udp6Read->Configure (Private->Udp6Read, NULL);
 
   if (EFI_ERROR (Status)) {
-    return Status;
+    goto ON_ERROR;
   }
 
   //
@@ -1050,6 +1051,13 @@ PxeBcRequestBootService (
   Reply->Length = (UINT32) ReadSize;
 
   return EFI_SUCCESS;
+  
+ON_ERROR:
+  if (Discover != NULL) {
+    FreePool (Discover);
+  }
+
+  return Status;
 }
 
 
@@ -2158,7 +2166,7 @@ PxeBcDhcp6Discover (
                     (VOID *) Discover
                     );
   if (EFI_ERROR (Status)) {
-    return Status;
+    goto ON_ERROR;
   }
 
   //
@@ -2178,7 +2186,7 @@ PxeBcDhcp6Discover (
   //
   Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);
   if (EFI_ERROR (Status)) {
-    return Status;
+    goto ON_ERROR;
   }
   
   Status = PxeBc->UdpRead (
@@ -2198,10 +2206,17 @@ PxeBcDhcp6Discover (
   //
   Private->Udp6Read->Configure (Private->Udp6Read, NULL);
   if (EFI_ERROR (Status)) {
-    return Status;
+    goto ON_ERROR;
   }
 
   return EFI_SUCCESS;
+
+ON_ERROR:
+  if (Discover != NULL) {
+    FreePool (Discover);
+  }
+
+  return Status;
 }
 
 
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c b/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c
index 09c5753ad9..8dd787be1a 100644
--- a/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c
+++ b/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c
@@ -2,7 +2,7 @@
   Driver Binding functions implementationfor for UefiPxeBc Driver.
 
   (C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
-  Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
 
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
@@ -254,6 +254,7 @@ PxeBcDestroyIp4Children (
            &Private->PxeBc,
            NULL
            );
+    FreePool (Private->Ip4Nic->DevicePath);
 
     if (Private->Snp != NULL) { 
       //
@@ -414,6 +415,8 @@ PxeBcDestroyIp6Children (
            &Private->PxeBc,
            NULL
            );
+    FreePool (Private->Ip6Nic->DevicePath);
+    
     if (Private->Snp != NULL) {
       //
       // Close SNP from the child virtual handle
-- 
2.13.0.windows.1

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