File _service:tar_scm:backport-multi-avoid-memory-le... of Package curl

File _service:tar_scm:backport-multi-avoid-memory-leak-risk.patch of Package curl (Revision 307d5a51033ccc06f374586b4a1666ff)

Currently displaying revision 307d5a51033ccc06f374586b4a1666ff , Show latest

From 3572dd65bb233fc2720634804312192e3bdf4adf Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 25 Apr 2024 09:52:51 +0200
Subject: [PATCH] multi: avoid memory-leak risk

'newurl' is allocated in some conditions and used in a few scenarios,
but there were theoretical combinations in which it would not get freed.
Move the free to happen unconditionally. Never triggered by tests, but
spotted by Coverity.

Closes #13471

Conflict:Context adapt
Reference:https://github.com/curl/curl/commit/3572dd65bb233fc2720634804312192e3bdf4adf
---
 lib/multi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/multi.c b/lib/multi.c
index fb98d80639f3b7..7e7590d60f8bcb 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -2530,7 +2530,6 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
             multistate(data, MSTATE_CONNECT);
             rc = CURLM_CALL_MULTI_PERFORM;
           }
-          free(newurl);
         }
         else {
           /* after the transfer is done, go DONE */
@@ -2542,7 +2541,6 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
             newurl = data->req.location;
             data->req.location = NULL;
             result = Curl_follow(data, newurl, FOLLOW_FAKE);
-            free(newurl);
             if(result) {
               stream_error = TRUE;
               result = multi_done(data, result, TRUE);
@@ -2561,6 +2559,7 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
            transfers */
         Curl_expire(data, 0, EXPIRE_RUN_NOW);
       }
+      free(newurl);
       break;
     }