From d187f5194813463b0bae4d4d5a3368e0ffcdfe54 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 21 Dec 2023 09:50:00 +0100
Subject: [PATCH] tool_getparam: do not try to expand without an argument

This would lead to a segfault.

Fixes #12565
Reported-by: Geeknik Labs
Closes #12575
---
 src/tool_getparam.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tool_getparam.c b/src/tool_getparam.c
index 6b256f8224..79110eb7d2 100644
--- a/src/tool_getparam.c
+++ b/src/tool_getparam.c
@@ -822,7 +822,7 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
       err = PARAM_NO_NOT_BOOLEAN;
       goto error;
     }
-    else if(expand) {
+    else if(expand && nextarg) {
       struct curlx_dynbuf nbuf;
       bool replaced;
 
-- 
2.47.3