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multi: avoid memory-leak risk

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'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
This commit is contained in:
Daniel Stenberg 2024-04-25 09:52:51 +02:00
parent 31d7cf42fd
commit 3572dd65bb
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 1 additions and 2 deletions
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3
lib/multi.c
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@ -2530,7 +2530,6 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
multistate(data, MSTATE_SETUP);
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;
}