PR: 2586
Submitted by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Reviewed by: steve

Zero structure fields properly.
diff --git a/engines/ccgost/gost_crypt.c b/engines/ccgost/gost_crypt.c
index 9b9f9d8..565146a 100644
--- a/engines/ccgost/gost_crypt.c
+++ b/engines/ccgost/gost_crypt.c
@@ -496,7 +496,8 @@
 int gost_imit_init_cpa(EVP_MD_CTX *ctx)
 	{
 	struct ossl_gost_imit_ctx *c = ctx->md_data;
-	memset(c->buffer,0,16);
+	memset(c->buffer,0,sizeof(c->buffer));
+	memset(c->partial_block,0,sizeof(c->partial_block));
 	c->count = 0;
 	c->bytes_left=0;
 	c->key_meshing=1;