From 3444d6678a66ce4898e1511964ed9d6a3f06f417 Mon Sep 17 00:00:00 2001
From: kaleb-himes <kaleb@wolfssl.com>
Date: Mon, 4 Feb 2019 10:32:00 -0700
Subject: [PATCH] Spotted obvious potential leak when reviewing function for
 support case

---
 wolfCLU/clu_src/genkey/clu_genkey.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/wolfCLU/clu_src/genkey/clu_genkey.c b/wolfCLU/clu_src/genkey/clu_genkey.c
index aa5b5bcf..6c35aaf3 100644
--- a/wolfCLU/clu_src/genkey/clu_genkey.c
+++ b/wolfCLU/clu_src/genkey/clu_genkey.c
@@ -357,18 +357,21 @@ int wolfCLU_genKey_RSA(RNG* rng, char* fName, int directive, int fmt, int
 
             derBufSz = wc_RsaKeyToDer(&key, derBuf, maxDerBufSz);
             if (derBufSz < 0) {
+                XFREE(fOutNameBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 XFREE(derBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 return derBufSz;
             }
 
             file = fopen(fOutNameBuf, "wb");
             if (file == XBADFILE) {
+                XFREE(fOutNameBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 XFREE(derBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 return OUTPUT_FILE_ERROR;
             }
 
             ret = (int)fwrite(derBuf, 1, derBufSz, file);
             if (ret <= 0) {
+                XFREE(fOutNameBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 XFREE(derBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 fclose(file);
                 return OUTPUT_FILE_ERROR;
@@ -385,6 +388,7 @@ int wolfCLU_genKey_RSA(RNG* rng, char* fName, int directive, int fmt, int
 
             derBufSz = wc_RsaKeyToPublicDer(&key, derBuf, maxDerBufSz);
             if (derBufSz < 0) {
+                XFREE(fOutNameBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 XFREE(derBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 return derBufSz;
             }
@@ -392,6 +396,7 @@ int wolfCLU_genKey_RSA(RNG* rng, char* fName, int directive, int fmt, int
             file = fopen(fOutNameBuf, "wb");
             if (file == XBADFILE) {
                 XFREE(fOutNameBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
+                XFREE(derBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 return OUTPUT_FILE_ERROR;
             }
 
@@ -399,6 +404,7 @@ int wolfCLU_genKey_RSA(RNG* rng, char* fName, int directive, int fmt, int
             if (ret <= 0) {
                 fclose(file);
                 XFREE(fOutNameBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
+                XFREE(derBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
                 return OUTPUT_FILE_ERROR;
             }
             fclose(file);
@@ -406,6 +412,7 @@ int wolfCLU_genKey_RSA(RNG* rng, char* fName, int directive, int fmt, int
         default:
             printf("Invalid directive\n");
             XFREE(fOutNameBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
+            XFREE(derBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
             return BAD_FUNC_ARG;
     }