/* We now have the EVP_MD_CTX, lets do the
* signing. */
EVP_MD_CTX_copy_ex(&ctx_tmp,mdc);
- if (!BUF_MEM_grow(buf,EVP_PKEY_size(si->pkey)))
+ if (!BUF_MEM_grow_clean(buf,EVP_PKEY_size(si->pkey)))
{
PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_BIO_LIB);
goto err;