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0031369: Foundation Classes, Standard_ReadBuffer - access violation on second ::ReadChunk() call after read failure

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Standard_ReadBuffer::readRawDataChunk() - do not increment NULL pointer and return invalid address.
This commit is contained in:
kgv 2020-08-28 14:24:40 +03:00 committed by bugmaster
parent 90bc1adb77
commit 68a2329305
1 changed files with 5 additions and 0 deletions
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5
src/Standard/Standard_ReadBuffer.hxx
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@ -100,6 +100,11 @@ private:
template<typename Stream_T> template<typename Stream_T>
char* readRawDataChunk (Stream_T& theStream) char* readRawDataChunk (Stream_T& theStream)
{ {
if (myBufferPtr == NULL)
{
return NULL;
}
myBufferPtr += myChunkLen; myBufferPtr += myChunkLen;
if (myBufferPtr < myBufferEnd) if (myBufferPtr < myBufferEnd)
{ {