From 5efa82a239d66f50b54aa3ab224a69e7cb6268eb Mon Sep 17 00:00:00 2001
From: Eric Blankenhorn <eric@wolfssl.com>
Date: Tue, 18 Jun 2024 14:47:01 -0500
Subject: [PATCH] Check for null sig in wolfSSL_X509_CRL_get_signature

---
 src/x509.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/x509.c b/src/x509.c
index 6c9c769cd..43386dc8a 100644
--- a/src/x509.c
+++ b/src/x509.c
@@ -8236,7 +8236,8 @@ int wolfSSL_X509_CRL_get_signature(WOLFSSL_X509_CRL* crl,
 {
     WOLFSSL_ENTER("wolfSSL_X509_CRL_get_signature");
 
-    if (crl == NULL || crl->crlList == NULL || bufSz == NULL)
+    if (crl == NULL || crl->crlList == NULL ||
+        crl->crlList->signature == NULL || bufSz == NULL)
         return BAD_FUNC_ARG;
 
     if (buf != NULL)