0031369: Foundation Classes, Standard_ReadBuffer - access violation on second ::ReadC...

Standard_ReadBuffer::readRawDataChunk() - do not increment NULL pointer and return invalid address.

diff --git a/src/Standard/Standard_ReadBuffer.hxx b/src/Standard/Standard_ReadBuffer.hxx
index 099a9ceb810556c2458ee02603c5fce41346279a..68e0680c7a802ba9fd36d79ebbfb8ae679191555 100644 (file)
--- a/src/Standard/Standard_ReadBuffer.hxx
+++ b/src/Standard/Standard_ReadBuffer.hxx
@@ -100,6 +100,11 @@ private:
   template<typename Stream_T>
   char* readRawDataChunk (Stream_T& theStream)
   {
+    if (myBufferPtr == NULL)
+    {
+      return NULL;
+    }
+
     myBufferPtr += myChunkLen;
     if (myBufferPtr < myBufferEnd)
     {