Use safer sizeof variant in malloc

For a local variable:
        TYPE *p;
Allocations like this are "risky":
        p = OPENSSL_malloc(sizeof(TYPE));
if the type of p changes, and the malloc call isn't updated, you
could get memory corruption.  Instead do this:
        p = OPENSSL_malloc(sizeof(*p));
Also fixed a few memset() calls that I noticed while doing this.

Reviewed-by: Richard Levitte <levitte@openssl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/crypto/ec/ec_pmeth.c b/crypto/ec/ec_pmeth.c
index ec27e23c68..3fbeac5789 100644
--- a/crypto/ec/ec_pmeth.c
+++ b/crypto/ec/ec_pmeth.c
@@ -91,7 +91,8 @@ typedef struct {
 static int pkey_ec_init(EVP_PKEY_CTX *ctx)
 {
     EC_PKEY_CTX *dctx;
-    dctx = OPENSSL_malloc(sizeof(EC_PKEY_CTX));
+
+    dctx = OPENSSL_malloc(sizeof(*dctx));
     if (!dctx)
         return 0;
     dctx->gen_group = NULL;