From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 18 Feb 2021 22:24:30 +0000 (+0100)
Subject: url: fix memory leak if OOM in the HSTS handling
X-Git-Tag: curl-7_76_0~136
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d25c479e8405dd255276a3345c8b1ae11d9419e1;p=thirdparty%2Fcurl.git

url: fix memory leak if OOM in the HSTS handling

Reported-by: Viktor Szakats
Bug: https://github.com/curl/curl/pull/6627#issuecomment-781626205

Closes #6628
---

diff --git a/lib/url.c b/lib/url.c
index e956121054..480c94c203 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -1959,8 +1959,10 @@ static CURLcode parseurlandfillconn(struct Curl_easy *data,
       if(uc)
         return Curl_uc_to_curlcode(uc);
       uc = curl_url_get(uh, CURLUPART_SCHEME, &data->state.up.scheme, 0);
-      if(uc)
+      if(uc) {
+        free(url);
         return Curl_uc_to_curlcode(uc);
+      }
       data->change.url = url;
       data->change.url_alloc = TRUE;
       infof(data, "Switched from HTTP to HTTPS due to HSTS => %s\n",