From a75d520727378b0d3a1c6e15dac5438a0c9f9d68 Mon Sep 17 00:00:00 2001
From: Daniel Pouzzner <douzzer@wolfssl.com>
Date: Thu, 8 Aug 2024 11:40:57 -0500
Subject: [PATCH] src/pk.c: fix a null deref (nullPointerRedundantCheck) in
 wolfSSL_RSA_GenAdd() added in d350ba6c41.

---
 src/pk.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/pk.c b/src/pk.c
index 8b8dd97737..34e2727844 100644
--- a/src/pk.c
+++ b/src/pk.c
@@ -4691,7 +4691,9 @@ int wolfSSL_RSA_GenAdd(WOLFSSL_RSA* rsa)
     mp_clear(t);
 
 #ifdef WOLFSSL_SMALL_STACK
-    XFREE(tmp, rsa->heap, DYNAMIC_TYPE_TMP_BUFFER);
+    if (rsa != NULL) {
+        XFREE(tmp, rsa->heap, DYNAMIC_TYPE_TMP_BUFFER);
+    }
 #endif
 
     return ret;