epagris/FreeRTOS-Kernel-CustomTag
1
0
Fork 0
forked from epagris/FreeRTOS-Kernel
Code Pull Requests Activity

Add addition overflow check for stream buffer (#226)

Browse Source
This commit is contained in:
Cobus van Eeden 2020-12-07 11:07:31 -08:00 committed by GitHub
parent c7a9a01c94
commit d05b9c123f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
stream_buffer.c
View File

@ -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 )
{