From 025bad1182ff87facbddd280dd07a0fc26b99f45 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 16 Oct 2022 18:09:14 +0200
Subject: [PATCH] curl_path: return error if given a NULL homedir

Closes #9740
---
 lib/curl_path.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/curl_path.c b/lib/curl_path.c
index 259837539d..b55e83047d 100644
--- a/lib/curl_path.c
+++ b/lib/curl_path.c
@@ -122,7 +122,8 @@ CURLcode Curl_get_pathname(const char **cpp, char **path, char *homedir)
   bool relativePath = false;
   static const char WHITESPACE[] = " \t\r\n";
 
-  if(!*cp) {
+  DEBUGASSERT(homedir);
+  if(!*cp || !homedir) {
     *cpp = NULL;
     *path = NULL;
     return CURLE_QUOTE_ERROR;