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Avoid a race condition in loading config settings

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A race condition can occur when sending config settings to
OPENSSL_INIT_crypto_library_start()

Reviewed-by: Richard Levitte <levitte@openssl.org>
This commit is contained in:
Matt Caswell
2016-02-09 10:55:21 +00:00
parent 8b75603cc0
commit bf24111bb2
1 changed files with 5 additions and 1 deletions
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6
crypto/init.c
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@@ -679,13 +679,17 @@ void OPENSSL_INIT_crypto_library_start(uint64_t opts,
}
if (opts & OPENSSL_INIT_LOAD_CONFIG) {
CRYPTO_w_lock(CRYPTO_LOCK_INIT);
if (settings != NULL) {
const OPENSSL_INIT_SETTINGS *curr;
curr = ossl_init_get_setting(settings,
OPENSSL_INIT_SET_CONF_FILENAME);
config_filename = curr == NULL ? NULL : curr->value.type_string;
config_filename = (curr == NULL) ? NULL : curr->value.type_string;
} else {
config_filename = NULL;
}
ossl_init_once_run(&config, ossl_init_config);
CRYPTO_w_unlock(CRYPTO_LOCK_INIT);
}
if (opts & OPENSSL_INIT_ASYNC) {