#4342: few missing malloc return checks and free in error paths

[openssl.git] / crypto / evp / digest.c

diff --git a/crypto/evp/digest.c b/crypto/evp/digest.c
index 051fc7b19dbbbc2d381e170aa1936154dd0af922..c594a0a63817ef797123fd5a766bc1f8d9c3f8fc 100644 (file)
--- a/crypto/evp/digest.c
+++ b/crypto/evp/digest.c
@@ -68,10 +68,8 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
      * previous handle, re-querying for an ENGINE, and having a
      * reinitialisation, when it may all be unnecessary.
      */
-    if (ctx->engine && ctx->digest && (!type ||
-                                       (type
-                                        && (type->type ==
-                                            ctx->digest->type))))
+    if (ctx->engine && ctx->digest &&
+        (type == NULL || (type->type == ctx->digest->type)))
         goto skip_to_init;
     if (type) {
         /*
@@ -117,7 +115,7 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
 #endif
     if (ctx->digest != type) {
         if (ctx->digest && ctx->digest->ctx_size) {
-            OPENSSL_free(ctx->md_data);
+            OPENSSL_clear_free(ctx->md_data, ctx->digest->ctx_size);
             ctx->md_data = NULL;
         }
         ctx->digest = type;