From c257753ee9017a045baae572bde4946fb3c09722 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 12 Jun 2025 11:46:51 +0200
Subject: [PATCH] asyn-thrdd: free the previous name before strdup'ing the new

Fixes #17602
Reported-by: hiimmat on github
Closes #17604
---
 lib/asyn-thrdd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/asyn-thrdd.c b/lib/asyn-thrdd.c
index 593ef37175..454e31b8b8 100644
--- a/lib/asyn-thrdd.c
+++ b/lib/asyn-thrdd.c
@@ -422,6 +422,7 @@ static bool async_thrdd_init(struct Curl_easy *data,
   data->state.async.done = FALSE;
   data->state.async.port = port;
   data->state.async.ip_version = ip_version;
+  free(data->state.async.hostname);
   data->state.async.hostname = strdup(hostname);
   if(!data->state.async.hostname)
     goto err_exit;
-- 
2.47.3