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MCADefrag: Added a sanity check for chunk size.

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Fixes CID 66448.
This commit is contained in:
Mattes D 2014-12-21 22:50:32 +01:00
parent f232704203
commit f5b4c92a10
1 changed files with 1 additions and 1 deletions
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2
Tools/MCADefrag/MCADefrag.cpp
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@ -269,7 +269,7 @@ bool cMCADefrag::cThread::ReadChunk(cFile & a_File, const Byte * a_LocationRaw)
return false;
}
m_CompressedChunkDataSize = (Buf[0] << 24) | (Buf[1] << 16) | (Buf[2] << 8) | Buf[3];
if (m_CompressedChunkDataSize > SizeInSectors)
if ((m_CompressedChunkDataSize > SizeInSectors) || (m_CompressedChunkDataSize < 0))
{
LOGWARNING("Invalid chunk data - SizeInSectors (%d) smaller that RealSize (%d)", SizeInSectors, m_CompressedChunkDataSize);
return false;