Zero out allocated buffers

antisvin · antisvin · commit 498115fe54e5 · 2021-02-03T23:26:02.000+03:00
diff --git a/Source/heap_5.c b/Source/heap_5.c
@@ -110,6 +110,7 @@
  *
  */
 #include <stdlib.h>
+#include <string.h>
 
 /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
 all the API functions to use the MPU wrappers.  That should only be done when
@@ -312,6 +313,12 @@ void *pvReturn = NULL;
 	}
 	#endif
 
+	/*
+	 * Zero out returned block
+	 */	
+	if (pvReturn != NULL)
+		memset((void*)pvReturn, 0, xWantedSize - uxHeapStructSize);
+
 	return pvReturn;
 }
 /*-----------------------------------------------------------*/

Original file line number	Diff line number	Diff line change
`@@ -110,6 +110,7 @@`
`110`	`110`	`*`
`111`	`111`	`*/`
`112`	`112`	`#include <stdlib.h>`
	`113`	`+#include <string.h>`
`113`	`114`
`114`	`115`	`/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining`
`115`	`116`	`all the API functions to use the MPU wrappers. That should only be done when`
`@@ -312,6 +313,12 @@ void *pvReturn = NULL;`
`312`	`313`	`}`
`313`	`314`	`#endif`
`314`	`315`
	`316`	`+ /*`
	`317`	`+ * Zero out returned block`
	`318`	`+ */`
	`319`	`+ if (pvReturn != NULL)`
	`320`	`+ memset((void*)pvReturn, 0, xWantedSize - uxHeapStructSize);`
	`321`	`+`
`315`	`322`	`return pvReturn;`
`316`	`323`	`}`
`317`	`324`	`/-----------------------------------------------------------/`