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From: "Gao, Zhichao" <zhichao.gao@intel.com>
To: devel@edk2.groups.io
Cc: Jaben Carsey <jaben.carsey@intel.com>, Ray Ni <ray.ni@intel.com>,
	Andrew Fish <afish@apple.com>
Subject: [PATCH V2] ShellPkg/UefiHandleParsingLib: Fix incorrect reallocate pool
Date: Mon, 22 Jul 2019 14:57:55 +0800	[thread overview]
Message-ID: <20190722065756.18856-2-zhichao.gao@intel.com> (raw)
In-Reply-To: <20190722065756.18856-1-zhichao.gao@intel.com>

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1965

For function InsertNewGuidNameMapping, it rellocate the
mGuidList with new size
"mGuidListCount+1 * sizeof(GUID_INFO_BLOCK)". That isn't
its purpose and would cause a overflow operation in
"mGuidList[mGuidListCount - 1].xxx = xxx". Its purpose
is to increase 1 block size of mGuidList. Change it to
"(mGuidListCount + 1) * sizeof (GUID_INFO_BLOCK)".

Adjust the coding style of this function.

Cc: Jaben Carsey <jaben.carsey@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Andrew Fish <afish@apple.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
---

V2:
Update the copyright.

 .../UefiHandleParsingLib/UefiHandleParsingLib.c    | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c b/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c
index f179c41092..43c19b9a91 100644
--- a/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c
+++ b/ShellPkg/Library/UefiHandleParsingLib/UefiHandleParsingLib.c
@@ -1,7 +1,7 @@
 /** @file
   Provides interface to advanced shell functionality for parsing both handle and protocol database.
 
-  Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2010 - 2019, Intel Corporation. All rights reserved.<BR>
   (C) Copyright 2013-2015 Hewlett-Packard Development Company, L.P.<BR>
   (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -2462,17 +2462,21 @@ InsertNewGuidNameMapping(
   IN CONST DUMP_PROTOCOL_INFO DumpFunc OPTIONAL
   )
 {
-  ASSERT(Guid   != NULL);
-  ASSERT(NameID != 0);
+  ASSERT (Guid   != NULL);
+  ASSERT (NameID != 0);
 
-  mGuidList = ReallocatePool(mGuidListCount * sizeof(GUID_INFO_BLOCK), mGuidListCount+1 * sizeof(GUID_INFO_BLOCK), mGuidList);
+  mGuidList = ReallocatePool (
+                mGuidListCount * sizeof (GUID_INFO_BLOCK),
+                (mGuidListCount + 1) * sizeof (GUID_INFO_BLOCK),
+                mGuidList
+                );
   if (mGuidList == NULL) {
     mGuidListCount = 0;
     return (EFI_OUT_OF_RESOURCES);
   }
   mGuidListCount++;
 
-  mGuidList[mGuidListCount - 1].GuidId   = AllocateCopyPool(sizeof(EFI_GUID), Guid);
+  mGuidList[mGuidListCount - 1].GuidId   = AllocateCopyPool (sizeof (EFI_GUID), Guid);
   mGuidList[mGuidListCount - 1].StringId = NameID;
   mGuidList[mGuidListCount - 1].DumpInfo = DumpFunc;
 
-- 
2.21.0.windows.1


  reply	other threads:[~2019-07-22  6:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-22  6:57 [PATCH V2] ShellPkg/Pci.c: Update supported link speed to PCI4.0 Gao, Zhichao
2019-07-22  6:57 ` Gao, Zhichao [this message]
2019-07-22  6:57 ` [PATCH V2] ShellPkg/UefiShellDriver1CommandsLib: Make array big enough Gao, Zhichao
     [not found] ` <15B3A871197D540E.29669@groups.io>
2019-07-26  7:46   ` FW: [edk2-devel] " Gao, Zhichao
     [not found]   ` <15B4E567EC0F1559.24302@groups.io>
2019-08-14  8:33     ` Gao, Zhichao
2019-08-14  8:41       ` Augustine, Linson
2019-08-14 15:03         ` Carsey, Jaben
     [not found] ` <15B3A870E6EA7BDB.7925@groups.io>
2019-07-26  7:46   ` FW: [edk2-devel] [PATCH V2] ShellPkg/UefiHandleParsingLib: Fix incorrect reallocate pool Gao, Zhichao
2019-09-02  8:51   ` Gao, Zhichao
2019-09-04 18:18     ` Ni, Ray

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