From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) (using TLSv1 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 7A07A1A1E0F for ; Wed, 12 Oct 2016 05:21:15 -0700 (PDT) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga103.fm.intel.com with ESMTP; 12 Oct 2016 05:21:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,482,1473145200"; d="scan'208";a="1063788620" Received: from shwdeopenpsi014.ccr.corp.intel.com ([10.239.9.34]) by orsmga002.jf.intel.com with ESMTP; 12 Oct 2016 05:21:14 -0700 From: Hao Wu To: edk2-devel@lists.01.org Cc: Hao Wu , Liming Gao , Yonghong Zhu Date: Wed, 12 Oct 2016 20:19:53 +0800 Message-Id: <1476274836-10544-10-git-send-email-hao.a.wu@intel.com> X-Mailer: git-send-email 1.9.5.msysgit.0 In-Reply-To: <1476274836-10544-1-git-send-email-hao.a.wu@intel.com> References: <1476274836-10544-1-git-send-email-hao.a.wu@intel.com> Subject: [PATCH 09/52] BaseTools/TianoCompress: Avoid possible NULL pointer dereference X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Oct 2016 12:21:15 -0000 Cc: Liming Gao Cc: Yonghong Zhu Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Hao Wu --- BaseTools/Source/C/TianoCompress/TianoCompress.c | 37 ++++++++++++++++-------- 1 file changed, 25 insertions(+), 12 deletions(-) diff --git a/BaseTools/Source/C/TianoCompress/TianoCompress.c b/BaseTools/Source/C/TianoCompress/TianoCompress.c index 70f1b61..57253cc 100644 --- a/BaseTools/Source/C/TianoCompress/TianoCompress.c +++ b/BaseTools/Source/C/TianoCompress/TianoCompress.c @@ -5,7 +5,7 @@ and Pointers to repeated strings. This sequence is further divided into Blocks and Huffman codings are applied to each Block. -Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.
+Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at @@ -240,6 +240,10 @@ Returns: UINT32 Index; mText = malloc (WNDSIZ * 2 + MAXMATCH); + if (mText == NULL) { + Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!"); + return EFI_OUT_OF_RESOURCES; + } for (Index = 0; Index < WNDSIZ * 2 + MAXMATCH; Index++) { mText[Index] = 0; } @@ -250,6 +254,11 @@ Returns: mParent = malloc (WNDSIZ * 2 * sizeof (*mParent)); mPrev = malloc (WNDSIZ * 2 * sizeof (*mPrev)); mNext = malloc ((MAX_HASH_VAL + 1) * sizeof (*mNext)); + if (mLevel == NULL || mChildCount == NULL || mPosition == NULL || + mParent == NULL || mPrev == NULL || mNext == NULL) { + Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!"); + return EFI_OUT_OF_RESOURCES; + } mBufSiz = BLKSIZ; mBuf = malloc (mBufSiz); @@ -1911,20 +1920,18 @@ Returns: free(FileBuffer); return 1; } - - if (OutputFileName != NULL) { - OutputFile = fopen (LongFilePath (OutputFileName), "wb"); - if (OutputFile == NULL) { - Error (NULL, 0, 0001, "Error opening output file for writing", OutputFileName); + + if (OutputFileName == NULL) { + OutputFileName = DEFAULT_OUTPUT_FILE; + } + OutputFile = fopen (LongFilePath (OutputFileName), "wb"); + if (OutputFile == NULL) { + Error (NULL, 0, 0001, "Error opening output file for writing", OutputFileName); if (InputFile != NULL) { fclose (InputFile); - } - goto ERROR; - } - } else { - OutputFileName = DEFAULT_OUTPUT_FILE; - OutputFile = fopen (LongFilePath (OutputFileName), "wb"); } + goto ERROR; + } if (ENCODE) { // @@ -1942,12 +1949,18 @@ Returns: goto ERROR; } } + Status = TianoCompress ((UINT8 *)FileBuffer, InputLength, OutBuffer, &DstSize); if (Status != EFI_SUCCESS) { Error (NULL, 0, 0007, "Error compressing file", NULL); goto ERROR; } + if (OutBuffer == NULL) { + Error (NULL, 0, 4001, "Resource:", "Memory cannot be allocated!"); + goto ERROR; + } + fwrite(OutBuffer,(size_t)DstSize, 1, OutputFile); free(Scratch); free(FileBuffer); -- 1.9.5.msysgit.0