2020-02-19 17:20:27 +01:00
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#!/usr/bin/env bash
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#
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# Copyright (c) 2019 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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export LC_ALL=C.UTF-8
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export CONTAINER_NAME=ci_native_fuzz_valgrind
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export PACKAGES="clang-8 llvm-8 python3 libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-test-dev libboost-thread-dev valgrind"
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export NO_DEPENDS=1
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export RUN_UNIT_TESTS=false
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export RUN_FUNCTIONAL_TESTS=false
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export RUN_FUZZ_TESTS=true
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Merge #18162: util: Avoid potential uninitialized read in FormatISO8601DateTime(int64_t) by checking gmtime_s/gmtime_r return value
12a2f377185a413b740460db36812de22ee2e041 util: Avoid potential uninitialized read in FormatISO8601DateTime(int64_t nTime) by checking gmtime_s/gmtime_r return value (practicalswift)
Pull request description:
Avoid potential uninitialized read in `FormatISO8601DateTime(int64_t)` by checking `gmtime_s`/`gmtime_r` return value.
Before this patch `FormatISO8601DateTime(67768036191676800)` resulted in:
```
==5930== Conditional jump or move depends on uninitialised value(s)
==5930== at 0x4F44C0A: std::ostreambuf_iterator<char, std::char_traits<char> > std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::_M_insert_int<long>(std::ostreambuf_iterator<char, std::char_traits<char> >, std::ios_base&, char, long) const (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
==5930== by 0x4F511A4: std::ostream& std::ostream::_M_insert<long>(long) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
==5930== by 0x4037C3: void tinyformat::formatValue<int>(std::ostream&, char const*, char const*, int, int const&) (tinyformat.h:358)
==5930== by 0x403725: void tinyformat::detail::FormatArg::formatImpl<int>(std::ostream&, char const*, char const*, int, void const*) (tinyformat.h:543)
==5930== by 0x402E02: tinyformat::detail::FormatArg::format(std::ostream&, char const*, char const*, int) const (tinyformat.h:528)
==5930== by 0x401B16: tinyformat::detail::formatImpl(std::ostream&, char const*, tinyformat::detail::FormatArg const*, int) (tinyformat.h:907)
==5930== by 0x4017AE: tinyformat::vformat(std::ostream&, char const*, tinyformat::FormatList const&) (tinyformat.h:1054)
==5930== by 0x401765: void tinyformat::format<int, int, int, int, int, int>(std::ostream&, char const*, int const&, int const&, int const&, int const&, int const&, int const&) (tinyformat.h:1064)
==5930== by 0x401656: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > tinyformat::format<int, int, int, int, int, int>(char const*, int const&, int const&, int const&, int const&, int const&, int const&) (tinyformat.h:1073)
==5930== by 0x4014CC: FormatISO8601DateTime[abi:cxx11](long) (…)
```
The same goes for other very large positive and negative arguments.
Fix by simply checking the `gmtime_s`/`gmtime_r` return value :)
ACKs for top commit:
MarcoFalke:
ACK 12a2f377185a413b740460db36812de22ee2e041
theStack:
re-ACK https://github.com/bitcoin/bitcoin/commit/12a2f377185a413b740460db36812de22ee2e041
elichai:
re ACK 12a2f377185a413b740460db36812de22ee2e041
Tree-SHA512: 066142670d9bf0944d41fa3f3c702b1a460b5471b93e76a619b1e818ff9bb9c09fe14c4c37e9536a04c99533f7f21d1b08ac141e1b829ff87ee54c80d0e61d48
2020-02-25 02:51:13 +01:00
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export FUZZ_TESTS_CONFIG="--valgrind"
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2020-02-19 17:20:27 +01:00
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export GOAL="install"
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export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer CC=clang-8 CXX=clang++-8"
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# Use clang-8, instead of default clang on bionic, which is clang-6 and does not come with libfuzzer on aarch64
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