From 84979900a70efbe8a84823ec075ffd196838057d Mon Sep 17 00:00:00 2001
From: JacobBarthelmeh <jacob@wolfssl.com>
Date: Wed, 7 Jun 2023 15:13:13 -0600
Subject: [PATCH] avoid use after free in error case

---
 src/pk.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/pk.c b/src/pk.c
index 4b4d99671..57cd5a146 100644
--- a/src/pk.c
+++ b/src/pk.c
@@ -360,8 +360,7 @@ static int der_to_enc_pem_alloc(unsigned char* der, int derSz,
             DYNAMIC_TYPE_TMP_BUFFER);
         if (tmpBuf == NULL) {
             WOLFSSL_ERROR_MSG("Extending DER buffer failed");
-            XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-            ret = 0;
+            ret = 0; /* der buffer is free'd at the end of the function */
         }
         else {
             der = tmpBuf;