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reuse_conn(): free old_conn->options

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This fixes a memory leak when CURLOPT_LOGIN_OPTIONS is used, together with
connection reuse.

I found this with oss-fuzz on GDAL and curl master:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9582
I couldn't reproduce with the oss-fuzz original test case, but looking
at curl source code pointed to this well reproducable leak.

Closes #2790
This commit is contained in:
Even Rouault 2018-07-25 11:22:51 +02:00 committed by Daniel Stenberg
parent d0d48b4276
commit a7091ba75d
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lib/url.c
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@ -3971,6 +3971,7 @@ static void reuse_conn(struct connectdata *old_conn,
Curl_safefree(old_conn->user);
Curl_safefree(old_conn->passwd);
Curl_safefree(old_conn->options);
Curl_safefree(old_conn->http_proxy.user);
Curl_safefree(old_conn->socks_proxy.user);
Curl_safefree(old_conn->http_proxy.passwd);