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M1 macOS | Memory leaks at SSL that is used by libcurl/8.1.2 (SecureTransport)

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From: Mos Yud via curl-library <curl-library_at_lists.haxx.se>
Date: Tue, 30 Jan 2024 18:39:07 +0200

Hi,

Machine: M1 sonoma 14.1.1

At my test I am using the shipped lib of curl, and its default used SSL,
that is:
curl 8.1.2 (x86_64-apple-darwin23.0) libcurl/8.1.2 (SecureTransport)
LibreSSL/3.3.6 zlib/1.2.12 nghttp2/1.55.1

I am getting memory leaks while running the following test:

*void* CallCurl() {

    CURL *hnd;

    hnd = curl_easy_init();

    curl_easy_setopt(hnd, CURLOPT_URL, "https://www.google.com");

    curl_easy_perform(hnd);

    curl_easy_cleanup(hnd);

}

I track the leaks with macOS instruments, and I see that all leaks are from
SSL (I am using the default SSL that the shipped curl uses).

Examples for the leaks stack frames:
1.
serialize_ECPublicKey
ECDSA_do_verify_new
ossl_ecdsa_verify
EVP_DigestVerifyFinal
tls13_server_certificate_verify_recv
tls13_handshake_perform
tls13_legacy_connect
ossl_connect_common
ssl_cf_connect
cf_setup_connect
cf_hc_connect
Curl_conn_connect
multi_runsingle
curl_multi_perform
curl_easy_perform
CallCurl()
main
start

2.
ccMallocECCryptor
CCECCryptorImportKey
ECDSA_do_verify_new
ossl_ecdsa_verify
EVP_DigestVerifyFinal
tls13_server_certificate_verify_recv
tls13_handshake_perform
tls13_legacy_connect
ossl_connect_common
ssl_cf_connect
cf_setup_connect
cf_hc_connect
Curl_conn_connect
multi_runsingle
curl_multi_perform
curl_easy_perform
CallCurl()
main
start

3.
ccMallocECCryptor
CCECCryptorImportKey
ECDSA_do_verify_new
ossl_ecdsa_verify
EVP_DigestVerifyFinal
tls13_server_certificate_verify_recv
tls13_handshake_perform
tls13_legacy_connect
ossl_connect_common
ssl_cf_connect
cf_setup_connect
cf_hc_connect
Curl_conn_connect
multi_runsingle
curl_multi_perform
curl_easy_perform
CallCurl()
main
start

Any advice?

Thx,
Moshe.

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Received on 2024-01-30

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