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Fix and simplify error handling in (RSA/EC_kmeth)_new_method()

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Inspired from PR #873.
Nearly same as 2bbf0ba.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
This commit is contained in:
FdaSilvaYY 2016-05-17 21:21:46 +02:00 committed by Matt Caswell
parent aca6dae94b
commit 11ed851db0
2 changed files with 31 additions and 42 deletions
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29
crypto/ec/ec_kmeth.c
View File

@ -78,15 +78,11 @@ EC_KEY *EC_KEY_new_method(ENGINE *engine)
ECerr(EC_F_EC_KEY_NEW_METHOD, ERR_R_MALLOC_FAILURE);
return NULL;
}
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EC_KEY, ret, &ret->ex_data)) {
OPENSSL_free(ret);
return NULL;
}
ret->references = 1;
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
ECerr(EC_F_EC_KEY_NEW_METHOD, ERR_R_MALLOC_FAILURE);
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EC_KEY, ret, &ret->ex_data);
OPENSSL_free(ret);
return NULL;
}
@ -96,10 +92,7 @@ EC_KEY *EC_KEY_new_method(ENGINE *engine)
if (engine != NULL) {
if (!ENGINE_init(engine)) {
ECerr(EC_F_EC_KEY_NEW_METHOD, ERR_R_ENGINE_LIB);
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EC_KEY, ret, &ret->ex_data);
CRYPTO_THREAD_lock_free(ret->lock);
OPENSSL_free(ret);
return NULL;
goto err;
}
ret->engine = engine;
} else
@ -108,25 +101,27 @@ EC_KEY *EC_KEY_new_method(ENGINE *engine)
ret->meth = ENGINE_get_EC(ret->engine);
if (ret->meth == NULL) {
ECerr(EC_F_EC_KEY_NEW_METHOD, ERR_R_ENGINE_LIB);
ENGINE_finish(ret->engine);
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EC_KEY, ret, &ret->ex_data);
CRYPTO_THREAD_lock_free(ret->lock);
OPENSSL_free(ret);
return NULL;
goto err;
}
}
#endif
ret->version = 1;
ret->conv_form = POINT_CONVERSION_UNCOMPRESSED;
ret->references = 1;
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EC_KEY, ret, &ret->ex_data)) {
goto err;
}
if (ret->meth->init != NULL && ret->meth->init(ret) == 0) {
ECerr(EC_F_EC_KEY_NEW_METHOD, ERR_R_INIT_FAIL);
EC_KEY_free(ret);
return NULL;
goto err;
}
return ret;
err:
EC_KEY_free(ret);
return NULL;
}
int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,

44
crypto/rsa/rsa_lib.c
View File

@ -70,21 +70,28 @@ int RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
RSA *RSA_new_method(ENGINE *engine)
{
RSA *ret;
RSA *ret = OPENSSL_zalloc(sizeof(*ret));
ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
return NULL;
}
ret->references = 1;
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
OPENSSL_free(ret);
return NULL;
}
ret->meth = RSA_get_default_method();
#ifndef OPENSSL_NO_ENGINE
ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
if (engine) {
if (!ENGINE_init(engine)) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
OPENSSL_free(ret);
return NULL;
goto err;
}
ret->engine = engine;
} else
@ -93,39 +100,26 @@ RSA *RSA_new_method(ENGINE *engine)
ret->meth = ENGINE_get_RSA(ret->engine);
if (ret->meth == NULL) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
ENGINE_finish(ret->engine);
OPENSSL_free(ret);
return NULL;
goto err;
}
}
#endif
ret->references = 1;
ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) {
#ifndef OPENSSL_NO_ENGINE
ENGINE_finish(ret->engine);
#endif
OPENSSL_free(ret);
return NULL;
}
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
#ifndef OPENSSL_NO_ENGINE
ENGINE_finish(ret->engine);
#endif
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
OPENSSL_free(ret);
return NULL;
goto err;
}
if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
RSA_free(ret);
ret = NULL;
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_INIT_FAIL);
goto err;
}
return ret;
err:
RSA_free(ret);
return NULL;
}
void RSA_free(RSA *r)