commit 54526c3c89722842f590ebb568f8c3ebbe5dbc7d
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Thu Oct 03 11:06:55 2019 +0200
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Tue Oct 22 10:03:07 2019 +0200
tree c76d01007e186126bfd11db90eca0dbe4c06824b
parent 994193326be25c29be2b525552db401d3e432067

Use plain memset() for freshly allocated objects

This commits reverts to plain memset() for cases like:

    some_type foo;
    memset( &foo, 0, sizeof( foo ) );

(Sometimes there is code between declaration in memset(), but it doesn't
matter as long as it doesn't touch foo.)

The reasoning is the same as in the previous commit: the stack shouldn't
contain sensitive data as we carefully wipe it after use.

library/ccm.c

diff --git a/library/ccm.c b/library/ccm.c
index 9258082..f6a751c 100644
--- a/library/ccm.c
+++ b/library/ccm.c
@@ -211,7 +211,7 @@
 
 
     /* Start CBC-MAC with first block */
-    mbedtls_platform_memset( y, 0, 16 );
+    memset( y, 0, 16 );
     UPDATE_CBC_MAC;
 
     /*