MdeModulePkg: Fix IPv4 double free

[mirror_edk2.git] / MdeModulePkg / Universal / Network / Ip4Dxe / Ip4Input.c

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Input.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Input.c
index 38ad1c39daf4a03d486495b5ca483fec61df7963..09b8f2bac23554b5f759d78630c58025fd61e23f 100644 (file)
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Input.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Input.c
@@ -2,6 +2,8 @@
   IP4 input process.\r
   \r
 Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved.<BR>\r
+(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r
+\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -512,6 +514,11 @@ Ip4IpSecProcessPacket (
   IP4_HEAD                  ZeroHead;\r
 \r
   Status        = EFI_SUCCESS;\r
+\r
+  if (!mIpSec2Installed) {\r
+    goto ON_EXIT;\r
+  }\r
+  \r
   Packet        = *Netbuf;\r
   RecycleEvent  = NULL;\r
   IpSecWrap     = NULL;\r