openssl/include/crypto/cryptlib.h
Matt Caswell c9732f0953 Fix a memleak in the FIPS provider
If the DRBG is used within the scope of the FIPS OSSL_provider_init
function then it attempts to register a thread callback via c_thread_start.
However the implementation of c_thread_start assumed that the provider's
provctx was already present. However because OSSL_provider_init is still
running it was actually NULL. This means the thread callback fail to work
correctly and a memory leak resulted.

Instead of having c_thread_start use the provctx as the callback argument
we change the definition of c_thread_start to have an explicit callback
argument to use.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15278)
2021-05-24 09:39:15 +10:00

40 lines
1.3 KiB
C

/*
* Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_CRYPTO_CRYPTLIB_H
# define OSSL_CRYPTO_CRYPTLIB_H
# pragma once
# include <openssl/core.h>
# include "internal/cryptlib.h"
/* This file is not scanned by mkdef.pl, whereas cryptlib.h is */
int ossl_init_thread_start(const void *index, void *arg,
OSSL_thread_stop_handler_fn handfn);
int ossl_init_thread_deregister(void *index);
int ossl_init_thread(void);
void ossl_cleanup_thread(void);
void ossl_ctx_thread_stop(OSSL_LIB_CTX *ctx);
/*
* OPENSSL_INIT flags. The primary list of these is in crypto.h. Flags below
* are those omitted from crypto.h because they are "reserved for internal
* use".
*/
# define OPENSSL_INIT_BASE_ONLY 0x00040000L
void ossl_trace_cleanup(void);
void ossl_malloc_setup_failures(void);
int ossl_crypto_alloc_ex_data_intern(int class_index, void *obj,
CRYPTO_EX_DATA *ad, int idx);
#endif /* OSSL_CRYPTO_CRYPTLIB_H */