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Fix: Potential Vulnerability in Cloned Function #170

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Fix: Potential Vulnerability in Cloned Function #170

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13 changes: 10 additions & 3 deletions demo/os/cube-freertos/nucleo-g070rb/Middlewares/Third_Party/FreeRTOS/Source/stream_buffer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -254,9 +254,16 @@ static void prvInitialiseNewStreamBuffer( StreamBuffer_t * const pxStreamBuffer,
this is a quirk of the implementation that means otherwise the free
space would be reported as one byte smaller than would be logically
expected. */
xBufferSizeBytes++;
pucAllocatedMemory = ( uint8_t * ) pvPortMalloc( xBufferSizeBytes + sizeof( StreamBuffer_t ) ); /*lint !e9079 malloc() only returns void*. */

if( xBufferSizeBytes < ( xBufferSizeBytes + 1 + sizeof( StreamBuffer_t ) ) )
{
xBufferSizeBytes++;
pucAllocatedMemory = ( uint8_t * ) pvPortMalloc( xBufferSizeBytes + sizeof( StreamBuffer_t ) ); /*lint !e9079 malloc() only returns void*. */
}
else
{
pucAllocatedMemory = NULL;
}

if( pucAllocatedMemory != NULL )
{
prvInitialiseNewStreamBuffer( ( StreamBuffer_t * ) pucAllocatedMemory, /* Structure at the start of the allocated memory. */ /*lint !e9087 Safe cast as allocated memory is aligned. */ /*lint !e826 Area is not too small and alignment is guaranteed provided malloc() behaves as expected and returns aligned buffer. */
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