Coverity 1453627: Null pointer dereferences (REVERSE_INULL)

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/9805)

diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c
index 4419d3f10b8300290d2e3f8516f5f021074e05b3..6726d8fb7d3caacc2d0bbbe332c046f056776d25 100644 (file)
--- a/ssl/t1_enc.c
+++ b/ssl/t1_enc.c
@@ -35,7 +35,7 @@ static int tls1_PRF(SSL *s,
     EVP_KDF *kdf;
     EVP_KDF_CTX *kctx = NULL;
     OSSL_PARAM params[8], *p = params;
     EVP_KDF *kdf;
     EVP_KDF_CTX *kctx = NULL;
     OSSL_PARAM params[8], *p = params;

-    const char *mdname = EVP_MD_name(md);
+    const char *mdname;

 
     if (md == NULL) {
         /* Should never happen */
 
     if (md == NULL) {
         /* Should never happen */


@@ -53,6 +53,7 @@ static int tls1_PRF(SSL *s,
     EVP_KDF_free(kdf);
     if (kctx == NULL)
         goto err;
     EVP_KDF_free(kdf);
     if (kctx == NULL)
         goto err;

+    mdname = EVP_MD_name(md);

     *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
                                             (char *)mdname, strlen(mdname) + 1);
     *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SECRET,
     *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
                                             (char *)mdname, strlen(mdname) + 1);
     *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SECRET,