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Add addition overflow check for stream buffer (#226)

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Cobus van Eeden 2020-12-07 11:07:31 -08:00 committed by GitHub
parent c7a9a01c94
commit d05b9c123f
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1 changed files with 10 additions and 2 deletions
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12
stream_buffer.c
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@ -258,8 +258,16 @@ 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 )
{