From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=134.134.136.24; helo=mga09.intel.com; envelope-from=jian.j.wang@intel.com; receiver=edk2-devel@lists.01.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 3842021C913BC for ; Mon, 6 Nov 2017 21:07:04 -0800 (PST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Nov 2017 21:11:03 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,356,1505804400"; d="scan'208";a="1215113263" Received: from jwang36-mobl2.ccr.corp.intel.com ([10.239.192.47]) by fmsmga001.fm.intel.com with ESMTP; 06 Nov 2017 21:11:01 -0800 From: Jian J Wang To: edk2-devel@lists.01.org Cc: Star Zeng , Eric Dong , Bi Dandan Date: Tue, 7 Nov 2017 13:10:56 +0800 Message-Id: <20171107051058.17640-2-jian.j.wang@intel.com> X-Mailer: git-send-email 2.14.1.windows.1 In-Reply-To: <20171107051058.17640-1-jian.j.wang@intel.com> References: <20171107051058.17640-1-jian.j.wang@intel.com> Subject: [PATCH v2 1/3] MdeModulePkg: Fix misuses of AllocateCopyPool X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Nov 2017 05:07:04 -0000 >v2: > a. Use ReallocatePool to replace AllocateCopyPool wherever applicable. AllocateCopyPool(AllocationSize, *Buffer) will copy "AllocationSize" bytes of memory from old "Buffer" to new allocated one. If "AllocationSize" is bigger than size of "Buffer", heap memory overflow occurs during copy. One solution is to allocate pool first then copy the necessary bytes to new memory. Another is using ReallocatePool instead if old buffer will be freed on spot. Cc: Star Zeng Cc: Eric Dong Cc: Bi Dandan Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang --- .../Application/UiApp/FrontPageCustomizedUiSupport.c | 9 ++++++--- .../BootMaintenanceManagerCustomizedUiSupport.c | 9 ++++++--- MdeModulePkg/Library/DeviceManagerUiLib/DeviceManager.c | 10 +++++----- MdeModulePkg/Library/UefiHiiLib/HiiLib.c | 12 ++++++++---- .../Universal/FvSimpleFileSystemDxe/FvSimpleFileSystem.c | 3 ++- MdeModulePkg/Universal/HiiDatabaseDxe/ConfigKeywordHandler.c | 9 ++++++--- 6 files changed, 33 insertions(+), 19 deletions(-) diff --git a/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c b/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c index 1505ef9319..bff2f78e59 100644 --- a/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c +++ b/MdeModulePkg/Application/UiApp/FrontPageCustomizedUiSupport.c @@ -639,9 +639,12 @@ UiListThirdPartyDrivers ( Count++; if (Count >= CurrentSize) { - DriverListPtr = AllocateCopyPool ((Count + UI_HII_DRIVER_LIST_SIZE) * sizeof (UI_HII_DRIVER_INSTANCE), gHiiDriverList); - ASSERT (DriverListPtr != NULL); - FreePool (gHiiDriverList); + DriverListPtr = ReallocatePool ( + CurrentSize * sizeof (UI_HII_DRIVER_INSTANCE), + (Count + UI_HII_DRIVER_LIST_SIZE) + * sizeof (UI_HII_DRIVER_INSTANCE), + gHiiDriverList + ); gHiiDriverList = DriverListPtr; CurrentSize += UI_HII_DRIVER_LIST_SIZE; } diff --git a/MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerCustomizedUiSupport.c b/MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerCustomizedUiSupport.c index b25bc67c06..09b1ecff94 100644 --- a/MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerCustomizedUiSupport.c +++ b/MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerCustomizedUiSupport.c @@ -435,9 +435,12 @@ BmmListThirdPartyDrivers ( Count++; if (Count >= CurrentSize) { - DriverListPtr = AllocateCopyPool ((Count + UI_HII_DRIVER_LIST_SIZE) * sizeof (UI_HII_DRIVER_INSTANCE), gHiiDriverList); - ASSERT (DriverListPtr != NULL); - FreePool (gHiiDriverList); + DriverListPtr = ReallocatePool ( + CurrentSize * sizeof (UI_HII_DRIVER_INSTANCE), + (Count + UI_HII_DRIVER_LIST_SIZE) + * sizeof (UI_HII_DRIVER_INSTANCE), + gHiiDriverList + ); gHiiDriverList = DriverListPtr; CurrentSize += UI_HII_DRIVER_LIST_SIZE; } diff --git a/MdeModulePkg/Library/DeviceManagerUiLib/DeviceManager.c b/MdeModulePkg/Library/DeviceManagerUiLib/DeviceManager.c index 23ae6c5392..ac8a975bf6 100644 --- a/MdeModulePkg/Library/DeviceManagerUiLib/DeviceManager.c +++ b/MdeModulePkg/Library/DeviceManagerUiLib/DeviceManager.c @@ -240,7 +240,11 @@ AddIdToMacDeviceList ( } else { mMacDeviceList.MaxListLen += MAX_MAC_ADDRESS_NODE_LIST_LEN; if (mMacDeviceList.CurListLen != 0) { - TempDeviceList = (MENU_INFO_ITEM *)AllocateCopyPool (sizeof (MENU_INFO_ITEM) * mMacDeviceList.MaxListLen, (VOID *)mMacDeviceList.NodeList); + TempDeviceList = ReallocatePool ( + sizeof (MENU_INFO_ITEM) * mMacDeviceList.CurListLen, + sizeof (MENU_INFO_ITEM) * mMacDeviceList.MaxListLen, + mMacDeviceList.NodeList + ); } else { TempDeviceList = (MENU_INFO_ITEM *)AllocatePool (sizeof (MENU_INFO_ITEM) * mMacDeviceList.MaxListLen); } @@ -251,10 +255,6 @@ AddIdToMacDeviceList ( TempDeviceList[mMacDeviceList.CurListLen].PromptId = PromptId; TempDeviceList[mMacDeviceList.CurListLen].QuestionId = (EFI_QUESTION_ID) (mMacDeviceList.CurListLen + NETWORK_DEVICE_LIST_KEY_OFFSET); - if (mMacDeviceList.CurListLen > 0) { - FreePool(mMacDeviceList.NodeList); - } - mMacDeviceList.NodeList = TempDeviceList; } mMacDeviceList.CurListLen ++; diff --git a/MdeModulePkg/Library/UefiHiiLib/HiiLib.c b/MdeModulePkg/Library/UefiHiiLib/HiiLib.c index ce894c08b5..f9b8c3df27 100644 --- a/MdeModulePkg/Library/UefiHiiLib/HiiLib.c +++ b/MdeModulePkg/Library/UefiHiiLib/HiiLib.c @@ -464,20 +464,24 @@ HiiGetFormSetFromHiiHandle( } if (FormSetBuffer != NULL){ - TempBuffer = AllocateCopyPool (TempSize + ((EFI_IFR_OP_HEADER *) OpCodeData)->Length, FormSetBuffer); - FreePool(FormSetBuffer); - FormSetBuffer = NULL; + TempBuffer = ReallocatePool ( + TempSize, + TempSize + ((EFI_IFR_OP_HEADER *) OpCodeData)->Length, + FormSetBuffer + ); if (TempBuffer == NULL) { Status = EFI_OUT_OF_RESOURCES; goto Done; } CopyMem (TempBuffer + TempSize, OpCodeData, ((EFI_IFR_OP_HEADER *) OpCodeData)->Length); + FormSetBuffer = NULL; } else { - TempBuffer = AllocateCopyPool (TempSize + ((EFI_IFR_OP_HEADER *) OpCodeData)->Length, OpCodeData); + TempBuffer = AllocatePool (TempSize + ((EFI_IFR_OP_HEADER *) OpCodeData)->Length); if (TempBuffer == NULL) { Status = EFI_OUT_OF_RESOURCES; goto Done; } + CopyMem (TempBuffer, OpCodeData, ((EFI_IFR_OP_HEADER *) OpCodeData)->Length); } TempSize += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length; FormSetBuffer = TempBuffer; diff --git a/MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystem.c b/MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystem.c index b81110ff98..5bd4c246bc 100644 --- a/MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystem.c +++ b/MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystem.c @@ -562,7 +562,8 @@ FvSimpleFileSystemOpen ( // No, there was no extension. So add one and search again for the file // NewFileNameLength = FileNameLength + 1 + 4 = (Number of non-null character) + (file extension) + (a null character) NewFileNameLength = FileNameLength + 1 + 4; - FileNameWithExtension = AllocateCopyPool (NewFileNameLength * 2, FileName); + FileNameWithExtension = AllocatePool (NewFileNameLength * 2); + StrCpyS (FileNameWithExtension, FileNameLength, FileName); StrCatS (FileNameWithExtension, NewFileNameLength, L".EFI"); for (FvFileInfoLink = GetFirstNode (&Instance->FileInfoHead); diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigKeywordHandler.c b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigKeywordHandler.c index 1b48c1cebe..5d5f17fb17 100644 --- a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigKeywordHandler.c +++ b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigKeywordHandler.c @@ -2543,12 +2543,15 @@ MergeToMultiKeywordResp ( MultiKeywordRespLen = (StrLen (*MultiKeywordResp) + 1 + StrLen (*KeywordResp) + 1) * sizeof (CHAR16); - StringPtr = AllocateCopyPool (MultiKeywordRespLen, *MultiKeywordResp); + StringPtr = ReallocatePool ( + StrSize (*MultiKeywordResp), + MultiKeywordRespLen, + *MultiKeywordResp + ); if (StringPtr == NULL) { return EFI_OUT_OF_RESOURCES; } - - FreePool (*MultiKeywordResp); + *MultiKeywordResp = StringPtr; StrCatS (StringPtr, MultiKeywordRespLen / sizeof (CHAR16), L"&"); -- 2.14.1.windows.1