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mbedtls: Avoid memory leak when handling ECDSA keys

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Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Jakub Jelen
2024-07-01 19:57:53 +02:00
parent 2d3b7e07af
commit ec6363d6b5
5 changed files with 128 additions and 105 deletions
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16
src/auth.c
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@@ -1693,18 +1693,22 @@ int ssh_userauth_agent_pubkey(ssh_session session,
key->type = publickey->type;
key->type_c = ssh_key_type_to_char(key->type);
key->flags = SSH_KEY_FLAG_PUBLIC;
#ifndef HAVE_LIBCRYPTO
key->rsa = publickey->rsa_pub;
#else
#if defined(HAVE_LIBMBEDCRYPTO)
key->pk = publickey->rsa_pub;
#elif defined(HAVE_LIBCRYPTO)
key->key = publickey->key_pub;
#else
key->rsa = publickey->rsa_pub;
#endif /* HAVE_LIBCRYPTO */
rc = ssh_userauth_agent_publickey(session, username, key);
#ifndef HAVE_LIBCRYPTO
key->rsa = NULL;
#else
#if defined(HAVE_LIBMBEDCRYPTO)
key->pk = NULL;
#elif defined(HAVE_LIBCRYPTO)
key->key = NULL;
#else
key->rsa = NULL;
#endif /* HAVE_LIBCRYPTO */
ssh_key_free(key);