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BaseTools/C/Common: Avoid possible NULL pointer dereference

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Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Hao Wu
2016-09-20 20:53:31 +08:00
parent e7700cedd9
commit 2ff3293d7b
6 changed files with 93 additions and 23 deletions
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9
BaseTools/Source/C/Common/TianoCompress.c
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@ -4,7 +4,7 @@ coding. LZ77 transforms the source data into a sequence of Original Characters
and Pointers to repeated strings. This sequence is further divided into Blocks
and Huffman codings are applied to each Block.
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
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
@ -417,6 +417,9 @@ Returns:
UINT32 Index;
mText = malloc (WNDSIZ * 2 + MAXMATCH);
if (mText == NULL) {
return EFI_OUT_OF_RESOURCES;
}
for (Index = 0; Index < WNDSIZ * 2 + MAXMATCH; Index++) {
mText[Index] = 0;
}
@ -427,6 +430,10 @@ 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) {
return EFI_OUT_OF_RESOURCES;
}
mBufSiz = BLKSIZ;
mBuf = malloc (mBufSiz);