Fix a bug in IP driver that the fragment overlap check may be skipped incorrectly.

[mirror_edk2.git] / NetworkPkg / Ip6Dxe / Ip6Input.c

diff --git a/NetworkPkg/Ip6Dxe/Ip6Input.c b/NetworkPkg/Ip6Dxe/Ip6Input.c
index 3f0dce734393f929aabcb564c3c3e87127c98b27..cf88884e381b20f088b1b791d9540051143ba1f2 100644 (file)
--- a/NetworkPkg/Ip6Dxe/Ip6Input.c
+++ b/NetworkPkg/Ip6Dxe/Ip6Input.c
@@ -1,7 +1,7 @@
 /** @file\r
   IP6 internal functions to process the incoming packets.\r
 \r
-  Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<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
@@ -243,7 +243,7 @@ Ip6Reassemble (
   // check whether THIS.Start < PREV.End for overlap. If two fragments\r
   // overlaps, trim the overlapped part off THIS fragment.\r
   //\r
-  if ((Cur != ListHead) && ((Prev = Cur->BackLink) != ListHead)) {\r
+  if ((Prev = Cur->BackLink) != ListHead) {\r
     Fragment  = NET_LIST_USER_STRUCT (Prev, NET_BUF, List);\r
     Node      = IP6_GET_CLIP_INFO (Fragment);\r
 \r