From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 12 Jun 2025 09:46:51 +0000 (+0200)
Subject: asyn-thrdd: free the previous name before strdup'ing the new
X-Git-Tag: curl-8_15_0~276
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c257753ee9017a045baae572bde4946fb3c09722;p=thirdparty%2Fcurl.git

asyn-thrdd: free the previous name before strdup'ing the new

Fixes #17602
Reported-by: hiimmat on github
Closes #17604
---

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;