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If a malformed config file is provided such as the following: openssl_conf = openssl_init [openssl_init] providers = provider_sect [provider_sect] = provider_sect The config parsing library will crash overflowing the stack, as it recursively parses the same provider_sect ad nauseum. Prevent this by maintaing a list of visited nodes as we recurse through referenced sections, and erroring out in the event we visit any given section node more than once. Note, adding the test for this revealed that our diagnostic code inadvertently pops recorded errors off the error stack because provider_conf_load returns success even in the event that a configuration parse failed. The call path to provider_conf_load has been updated in this commit to address that shortcoming, allowing recorded errors to be visibile to calling applications. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22898)
28 lines
641 B
C
28 lines
641 B
C
/*
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* Generated by util/mkerr.pl DO NOT EDIT
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* Copyright 2020-2023 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_CRYPTO_CONFERR_H
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# define OSSL_CRYPTO_CONFERR_H
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# pragma once
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# include <openssl/opensslconf.h>
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# include <openssl/symhacks.h>
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# ifdef __cplusplus
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extern "C" {
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# endif
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int ossl_err_load_CONF_strings(void);
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# ifdef __cplusplus
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}
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# endif
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#endif
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