From 4088b25b337d67fa34e96e90cf98dd3865ce2d33 Mon Sep 17 00:00:00 2001
From: kokke <spam@rowdy.dk>
Date: Tue, 9 Mar 2021 14:25:04 +0100
Subject: [PATCH] lib1536: check ptr against NULL before dereferencing it

Closes #6710
---
 tests/libtest/lib1536.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/libtest/lib1536.c b/tests/libtest/lib1536.c
index 7a1aa9bfa..6fe3bc787 100644
--- a/tests/libtest/lib1536.c
+++ b/tests/libtest/lib1536.c
@@ -69,7 +69,7 @@ int test(char *URL)
             __FILE__, __LINE__, res, curl_easy_strerror(res));
     goto test_cleanup;
   }
-  if(memcmp(scheme, "HTTP", 5) != 0) {
+  if(scheme == NULL || memcmp(scheme, "HTTP", 5) != 0) {
     fprintf(stderr, "%s:%d scheme of http resource is incorrect; "
             "expected 'HTTP' but is %s\n",
             __FILE__, __LINE__,