FIXED misleading behavior of aes_gcm_cipher() when fed with empty input ... #41
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…ut buffer FIXED misleading difference in behavior of aes_gcm_cipher() when empty input buffer is supplied by means of: 1. setting "in" argument to NULL 2. and by setting "len" argument to 0
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Perhaps or setting len to zero. Re-open with a new patch if you agree. Closing for now. |
levitte
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Feb 6, 2018
Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> Reviewed-by: Paul Dale <paul.dale@oracle.com> (Merged from openssl/openssl#41)
mcr
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Jun 22, 2021
sync code from upstream
rschu1ze
added a commit
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Jun 11, 2024
During my testing (*), I got below stack about leaked memory. - at database startup, Azure is registered as an object storage (--> registerAzureObjectStorage) - this calls into Azure, then into curl, and then into OpenSSL - curl asks OpenSSL for a bunch of random numbers (--> function 'ossl_random' in curl's OpenSSL wrapper) - OpenSSL initializes the random number generator and stores it in some random number generator context object (--> *RAND_get0_public) - this object is registered via pthread_key_create and pthread_setspecific registered in TLS - if registerAzureObjectStorage was the only place which initializes the RNG, we could argue that the leaked memory does not matter anyways as it is released after shutdown - RAND_get0_public also registers a free handler (rand_delete_thread_state) that runs in TLS, so the memory is released also if registration is called from arbitrary other threads. In sum: this is a false positive. (*) ClickHouse/clickhouse-private#10107 (comment) ``` ================================================================= ==2757181==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x5672f4a48083 in malloc (/data/ch4/build_asan/programs/clickhouse+0xa2b7083) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #1 0x567321d05c7e in CRYPTO_malloc build_asan/./contrib/openssl/crypto/mem.c:202:11 #2 0x567321d05c7e in CRYPTO_zalloc build_asan/./contrib/openssl/crypto/mem.c:222:11 #3 0x567321d5f9cf in EVP_RAND_CTX_new build_asan/./contrib/openssl/crypto/evp/evp_rand.c:353:11 #4 0x567321d627db in rand_new_drbg build_asan/./contrib/openssl/crypto/rand/rand_lib.c:658:11 #5 0x567321d61e7b in RAND_get0_public build_asan/./contrib/openssl/crypto/rand/rand_lib.c:777:16 #6 0x567321d61d4f in RAND_bytes_ex build_asan/./contrib/openssl/crypto/rand/rand_lib.c:378:12 #7 0x56731cfe9267 in ossl_random openssl.c #8 0x56731cf534ae in Curl_rand (/data/ch4/build_asan/programs/clickhouse+0x327c24ae) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #9 0x56731cf757dc in Curl_socketpair (/data/ch4/build_asan/programs/clickhouse+0x327e47dc) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#10 0x56731cf40bfe in Curl_multi_handle (/data/ch4/build_asan/programs/clickhouse+0x327afbfe) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#11 0x56731cecb260 in curl_easy_perform (/data/ch4/build_asan/programs/clickhouse+0x3273a260) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#12 0x56731cd4a351 in Azure::Core::Http::CurlConnection::CurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2441:24 openssl#13 0x56731cd3176b in std::__1::__unique_if<Azure::Core::Http::CurlConnection>::__unique_single std::__1::make_unique[abi:v15000]<Azure::Core::Http::CurlConnection, Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(Azure::Core::Http::Request&, Azure::Core::H ttp::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/llvm-project/libcxx/include/__memory/unique_ptr.h:714:32 openssl#14 0x56731cd3176b in Azure::Core::Http::_detail::CurlConnectionPool::ExtractOrCreateCurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, bool) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2126:10 openssl#15 0x56731cd2f891 in Azure::Core::Http::CurlTransport::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:351:48 openssl#16 0x56731cdd66db in Azure::Core::Http::Policies::_internal::TransportPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/transport_policy.cpp:121:40 openssl#17 0x56731cd7c75b in Azure::Core::Http::Policies::_internal::LogPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/log_policy.cpp:114:23 openssl#18 0x56731cdd0218 in Azure::Core::Http::Policies::_internal::RequestActivityPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/request_activity_policy.cpp:110:23 openssl#19 0x56731cec5f18 in Azure::Storage::_internal::StoragePerRetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_per_retry_policy.cpp:57:23 openssl#20 0x56731cec6d0b in Azure::Storage::_internal::StorageSwitchToSecondaryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_switch_to_secondary_policy.cpp:36:32 openssl#21 0x56731cdcd019 in Azure::Core::Http::Policies::_internal::RetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/retry_policy.cpp:146:34 openssl#22 0x56731cdd6e17 in Azure::Core::Http::Policies::_internal::TelemetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/telemetry_policy.cpp:23:21 openssl#23 0x56731cdb0ef5 in Azure::Core::Http::Policies::_internal::RequestIdPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/http/policies/policy.hpp:453:27 openssl#24 0x56731cdfc53e in Azure::Storage::_internal::StorageServiceVersionPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/inc/azure/storage/common/internal/storage_service_version_policy.hpp:34:25 openssl#25 0x56731ce4bff1 in Azure::Core::Http::_internal::HttpPipeline::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/internal/http/pipeline.hpp:230:29 openssl#26 0x56731ce4bff1 in Azure::Storage::Blobs::_detail::BlobContainerClient::Create(Azure::Core::Http::_internal::HttpPipeline&, Azure::Core::Url const&, Azure::Storage::Blobs::_detail::BlobContainerClient::CreateBlobContainerOptions const&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/rest_client.cpp:1415:36 openssl#27 0x56731ce0bdd8 in Azure::Storage::Blobs::BlobContainerClient::Create(Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_container_client.cpp:258:12 openssl#28 0x56731ce396dc in Azure::Storage::Blobs::BlobServiceClient::CreateBlobContainer(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp:264:41 openssl#29 0x56731018fcff in DB::getAzureBlobContainerClient(Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./src/Disks/ObjectStorages/AzureBlobStorage/AzureBlobStorageAuth.cpp:236:75 openssl#30 0x5673115a7352 in DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:315:13 openssl#31 0x5673115a7352 in decltype(std::declval<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const> const&>(), std::declval<bool>() )) std::__1::__invoke[abi:v15000]<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#32 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IObjectStorage>, false>::__call<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_pt r<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#33 0x5673115a7352 in std::__1::__function::__default_alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v 15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 openssl#34 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__function::__policy_invoker<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::__call_impl<std::__1::__function::__default _alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>>(std::__1::__function::__policy_storage const*, std::__1::basic_string<cha r, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:716:16 openssl#35 0x5673115a0780 in std::__1::__function::__policy_func<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::_ _1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:848:16 openssl#36 0x5673115a0780 in std::__1::function<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:1187:12 openssl#37 0x5673115a0780 in DB::ObjectStorageFactory::create(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:135:12 openssl#38 0x56731159ef45 in DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1: :shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool) const build_asan/./src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp:27:64 openssl#39 0x56731159ef45 in decltype(std::declval<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const>>(), std::declval<std::__1::map<std: :__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&>(), std::declval<bool>(), std::declval<bool>())) std::__1::__invoke[abi:v15000]<DB::regis terDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::_ _1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_ string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#40 0x56731159ef45 in std::__1::shared_ptr<DB::IDisk> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IDisk>, false>::__call<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0 &, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<ch ar>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#41 0x56731159ef45 in std::__1::__function::__default_alloc_func<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0, std::__1::shared_ptr<DB::IDisk> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, s td::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator <char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::b asic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 ```
rschu1ze
added a commit
to ClickHouse/openssl
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this pull request
Sep 6, 2024
During my testing (*), I got below stack about leaked memory. - at database startup, Azure is registered as an object storage (--> registerAzureObjectStorage) - this calls into Azure, then into curl, and then into OpenSSL - curl asks OpenSSL for a bunch of random numbers (--> function 'ossl_random' in curl's OpenSSL wrapper) - OpenSSL initializes the random number generator and stores it in some random number generator context object (--> *RAND_get0_public) - this object is registered via pthread_key_create and pthread_setspecific registered in TLS - if registerAzureObjectStorage was the only place which initializes the RNG, we could argue that the leaked memory does not matter anyways as it is released after shutdown - RAND_get0_public also registers a free handler (rand_delete_thread_state) that runs in TLS, so the memory is released also if registration is called from arbitrary other threads. In sum: this is a false positive. (*) ClickHouse/clickhouse-private#10107 (comment) ``` ================================================================= ==2757181==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x5672f4a48083 in malloc (/data/ch4/build_asan/programs/clickhouse+0xa2b7083) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #1 0x567321d05c7e in CRYPTO_malloc build_asan/./contrib/openssl/crypto/mem.c:202:11 #2 0x567321d05c7e in CRYPTO_zalloc build_asan/./contrib/openssl/crypto/mem.c:222:11 #3 0x567321d5f9cf in EVP_RAND_CTX_new build_asan/./contrib/openssl/crypto/evp/evp_rand.c:353:11 #4 0x567321d627db in rand_new_drbg build_asan/./contrib/openssl/crypto/rand/rand_lib.c:658:11 #5 0x567321d61e7b in RAND_get0_public build_asan/./contrib/openssl/crypto/rand/rand_lib.c:777:16 #6 0x567321d61d4f in RAND_bytes_ex build_asan/./contrib/openssl/crypto/rand/rand_lib.c:378:12 #7 0x56731cfe9267 in ossl_random openssl.c #8 0x56731cf534ae in Curl_rand (/data/ch4/build_asan/programs/clickhouse+0x327c24ae) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #9 0x56731cf757dc in Curl_socketpair (/data/ch4/build_asan/programs/clickhouse+0x327e47dc) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#10 0x56731cf40bfe in Curl_multi_handle (/data/ch4/build_asan/programs/clickhouse+0x327afbfe) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#11 0x56731cecb260 in curl_easy_perform (/data/ch4/build_asan/programs/clickhouse+0x3273a260) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#12 0x56731cd4a351 in Azure::Core::Http::CurlConnection::CurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2441:24 openssl#13 0x56731cd3176b in std::__1::__unique_if<Azure::Core::Http::CurlConnection>::__unique_single std::__1::make_unique[abi:v15000]<Azure::Core::Http::CurlConnection, Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(Azure::Core::Http::Request&, Azure::Core::H ttp::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/llvm-project/libcxx/include/__memory/unique_ptr.h:714:32 openssl#14 0x56731cd3176b in Azure::Core::Http::_detail::CurlConnectionPool::ExtractOrCreateCurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, bool) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2126:10 openssl#15 0x56731cd2f891 in Azure::Core::Http::CurlTransport::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:351:48 openssl#16 0x56731cdd66db in Azure::Core::Http::Policies::_internal::TransportPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/transport_policy.cpp:121:40 openssl#17 0x56731cd7c75b in Azure::Core::Http::Policies::_internal::LogPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/log_policy.cpp:114:23 openssl#18 0x56731cdd0218 in Azure::Core::Http::Policies::_internal::RequestActivityPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/request_activity_policy.cpp:110:23 openssl#19 0x56731cec5f18 in Azure::Storage::_internal::StoragePerRetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_per_retry_policy.cpp:57:23 openssl#20 0x56731cec6d0b in Azure::Storage::_internal::StorageSwitchToSecondaryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_switch_to_secondary_policy.cpp:36:32 openssl#21 0x56731cdcd019 in Azure::Core::Http::Policies::_internal::RetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/retry_policy.cpp:146:34 openssl#22 0x56731cdd6e17 in Azure::Core::Http::Policies::_internal::TelemetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/telemetry_policy.cpp:23:21 openssl#23 0x56731cdb0ef5 in Azure::Core::Http::Policies::_internal::RequestIdPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/http/policies/policy.hpp:453:27 openssl#24 0x56731cdfc53e in Azure::Storage::_internal::StorageServiceVersionPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/inc/azure/storage/common/internal/storage_service_version_policy.hpp:34:25 openssl#25 0x56731ce4bff1 in Azure::Core::Http::_internal::HttpPipeline::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/internal/http/pipeline.hpp:230:29 openssl#26 0x56731ce4bff1 in Azure::Storage::Blobs::_detail::BlobContainerClient::Create(Azure::Core::Http::_internal::HttpPipeline&, Azure::Core::Url const&, Azure::Storage::Blobs::_detail::BlobContainerClient::CreateBlobContainerOptions const&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/rest_client.cpp:1415:36 openssl#27 0x56731ce0bdd8 in Azure::Storage::Blobs::BlobContainerClient::Create(Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_container_client.cpp:258:12 openssl#28 0x56731ce396dc in Azure::Storage::Blobs::BlobServiceClient::CreateBlobContainer(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp:264:41 openssl#29 0x56731018fcff in DB::getAzureBlobContainerClient(Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./src/Disks/ObjectStorages/AzureBlobStorage/AzureBlobStorageAuth.cpp:236:75 openssl#30 0x5673115a7352 in DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:315:13 openssl#31 0x5673115a7352 in decltype(std::declval<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const> const&>(), std::declval<bool>() )) std::__1::__invoke[abi:v15000]<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#32 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IObjectStorage>, false>::__call<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_pt r<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#33 0x5673115a7352 in std::__1::__function::__default_alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v 15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 openssl#34 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__function::__policy_invoker<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::__call_impl<std::__1::__function::__default _alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>>(std::__1::__function::__policy_storage const*, std::__1::basic_string<cha r, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:716:16 openssl#35 0x5673115a0780 in std::__1::__function::__policy_func<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::_ _1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:848:16 openssl#36 0x5673115a0780 in std::__1::function<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:1187:12 openssl#37 0x5673115a0780 in DB::ObjectStorageFactory::create(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:135:12 openssl#38 0x56731159ef45 in DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1: :shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool) const build_asan/./src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp:27:64 openssl#39 0x56731159ef45 in decltype(std::declval<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const>>(), std::declval<std::__1::map<std: :__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&>(), std::declval<bool>(), std::declval<bool>())) std::__1::__invoke[abi:v15000]<DB::regis terDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::_ _1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_ string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#40 0x56731159ef45 in std::__1::shared_ptr<DB::IDisk> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IDisk>, false>::__call<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0 &, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<ch ar>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#41 0x56731159ef45 in std::__1::__function::__default_alloc_func<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0, std::__1::shared_ptr<DB::IDisk> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, s td::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator <char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::b asic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 ```
rschu1ze
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Sep 6, 2024
During my testing (*), I got below stack about leaked memory. - at database startup, Azure is registered as an object storage (--> registerAzureObjectStorage) - this calls into Azure, then into curl, and then into OpenSSL - curl asks OpenSSL for a bunch of random numbers (--> function 'ossl_random' in curl's OpenSSL wrapper) - OpenSSL initializes the random number generator and stores it in some random number generator context object (--> *RAND_get0_public) - this object is registered via pthread_key_create and pthread_setspecific registered in TLS - if registerAzureObjectStorage was the only place which initializes the RNG, we could argue that the leaked memory does not matter anyways as it is released after shutdown - RAND_get0_public also registers a free handler (rand_delete_thread_state) that runs in TLS, so the memory is released also if registration is called from arbitrary other threads. In sum: this is a false positive. (*) ClickHouse/clickhouse-private#10107 (comment) ``` ================================================================= ==2757181==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x5672f4a48083 in malloc (/data/ch4/build_asan/programs/clickhouse+0xa2b7083) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #1 0x567321d05c7e in CRYPTO_malloc build_asan/./contrib/openssl/crypto/mem.c:202:11 #2 0x567321d05c7e in CRYPTO_zalloc build_asan/./contrib/openssl/crypto/mem.c:222:11 #3 0x567321d5f9cf in EVP_RAND_CTX_new build_asan/./contrib/openssl/crypto/evp/evp_rand.c:353:11 #4 0x567321d627db in rand_new_drbg build_asan/./contrib/openssl/crypto/rand/rand_lib.c:658:11 #5 0x567321d61e7b in RAND_get0_public build_asan/./contrib/openssl/crypto/rand/rand_lib.c:777:16 #6 0x567321d61d4f in RAND_bytes_ex build_asan/./contrib/openssl/crypto/rand/rand_lib.c:378:12 #7 0x56731cfe9267 in ossl_random openssl.c #8 0x56731cf534ae in Curl_rand (/data/ch4/build_asan/programs/clickhouse+0x327c24ae) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #9 0x56731cf757dc in Curl_socketpair (/data/ch4/build_asan/programs/clickhouse+0x327e47dc) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#10 0x56731cf40bfe in Curl_multi_handle (/data/ch4/build_asan/programs/clickhouse+0x327afbfe) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#11 0x56731cecb260 in curl_easy_perform (/data/ch4/build_asan/programs/clickhouse+0x3273a260) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#12 0x56731cd4a351 in Azure::Core::Http::CurlConnection::CurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2441:24 openssl#13 0x56731cd3176b in std::__1::__unique_if<Azure::Core::Http::CurlConnection>::__unique_single std::__1::make_unique[abi:v15000]<Azure::Core::Http::CurlConnection, Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(Azure::Core::Http::Request&, Azure::Core::H ttp::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/llvm-project/libcxx/include/__memory/unique_ptr.h:714:32 openssl#14 0x56731cd3176b in Azure::Core::Http::_detail::CurlConnectionPool::ExtractOrCreateCurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, bool) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2126:10 openssl#15 0x56731cd2f891 in Azure::Core::Http::CurlTransport::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:351:48 openssl#16 0x56731cdd66db in Azure::Core::Http::Policies::_internal::TransportPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/transport_policy.cpp:121:40 openssl#17 0x56731cd7c75b in Azure::Core::Http::Policies::_internal::LogPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/log_policy.cpp:114:23 openssl#18 0x56731cdd0218 in Azure::Core::Http::Policies::_internal::RequestActivityPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/request_activity_policy.cpp:110:23 openssl#19 0x56731cec5f18 in Azure::Storage::_internal::StoragePerRetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_per_retry_policy.cpp:57:23 openssl#20 0x56731cec6d0b in Azure::Storage::_internal::StorageSwitchToSecondaryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_switch_to_secondary_policy.cpp:36:32 openssl#21 0x56731cdcd019 in Azure::Core::Http::Policies::_internal::RetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/retry_policy.cpp:146:34 openssl#22 0x56731cdd6e17 in Azure::Core::Http::Policies::_internal::TelemetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/telemetry_policy.cpp:23:21 openssl#23 0x56731cdb0ef5 in Azure::Core::Http::Policies::_internal::RequestIdPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/http/policies/policy.hpp:453:27 openssl#24 0x56731cdfc53e in Azure::Storage::_internal::StorageServiceVersionPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/inc/azure/storage/common/internal/storage_service_version_policy.hpp:34:25 openssl#25 0x56731ce4bff1 in Azure::Core::Http::_internal::HttpPipeline::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/internal/http/pipeline.hpp:230:29 openssl#26 0x56731ce4bff1 in Azure::Storage::Blobs::_detail::BlobContainerClient::Create(Azure::Core::Http::_internal::HttpPipeline&, Azure::Core::Url const&, Azure::Storage::Blobs::_detail::BlobContainerClient::CreateBlobContainerOptions const&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/rest_client.cpp:1415:36 openssl#27 0x56731ce0bdd8 in Azure::Storage::Blobs::BlobContainerClient::Create(Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_container_client.cpp:258:12 openssl#28 0x56731ce396dc in Azure::Storage::Blobs::BlobServiceClient::CreateBlobContainer(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp:264:41 openssl#29 0x56731018fcff in DB::getAzureBlobContainerClient(Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./src/Disks/ObjectStorages/AzureBlobStorage/AzureBlobStorageAuth.cpp:236:75 openssl#30 0x5673115a7352 in DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:315:13 openssl#31 0x5673115a7352 in decltype(std::declval<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const> const&>(), std::declval<bool>() )) std::__1::__invoke[abi:v15000]<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#32 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IObjectStorage>, false>::__call<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_pt r<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#33 0x5673115a7352 in std::__1::__function::__default_alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v 15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 openssl#34 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__function::__policy_invoker<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::__call_impl<std::__1::__function::__default _alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>>(std::__1::__function::__policy_storage const*, std::__1::basic_string<cha r, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:716:16 openssl#35 0x5673115a0780 in std::__1::__function::__policy_func<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::_ _1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:848:16 openssl#36 0x5673115a0780 in std::__1::function<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:1187:12 openssl#37 0x5673115a0780 in DB::ObjectStorageFactory::create(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:135:12 openssl#38 0x56731159ef45 in DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1: :shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool) const build_asan/./src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp:27:64 openssl#39 0x56731159ef45 in decltype(std::declval<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const>>(), std::declval<std::__1::map<std: :__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&>(), std::declval<bool>(), std::declval<bool>())) std::__1::__invoke[abi:v15000]<DB::regis terDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::_ _1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_ string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#40 0x56731159ef45 in std::__1::shared_ptr<DB::IDisk> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IDisk>, false>::__call<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0 &, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<ch ar>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#41 0x56731159ef45 in std::__1::__function::__default_alloc_func<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0, std::__1::shared_ptr<DB::IDisk> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, s td::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator <char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::b asic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 ```
thevar1able
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Jun 5, 2025
During my testing (*), I got below stack about leaked memory. - at database startup, Azure is registered as an object storage (--> registerAzureObjectStorage) - this calls into Azure, then into curl, and then into OpenSSL - curl asks OpenSSL for a bunch of random numbers (--> function 'ossl_random' in curl's OpenSSL wrapper) - OpenSSL initializes the random number generator and stores it in some random number generator context object (--> *RAND_get0_public) - this object is registered via pthread_key_create and pthread_setspecific registered in TLS - if registerAzureObjectStorage was the only place which initializes the RNG, we could argue that the leaked memory does not matter anyways as it is released after shutdown - RAND_get0_public also registers a free handler (rand_delete_thread_state) that runs in TLS, so the memory is released also if registration is called from arbitrary other threads. In sum: this is a false positive. (*) ClickHouse/clickhouse-private#10107 (comment) ``` ================================================================= ==2757181==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x5672f4a48083 in malloc (/data/ch4/build_asan/programs/clickhouse+0xa2b7083) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #1 0x567321d05c7e in CRYPTO_malloc build_asan/./contrib/openssl/crypto/mem.c:202:11 #2 0x567321d05c7e in CRYPTO_zalloc build_asan/./contrib/openssl/crypto/mem.c:222:11 #3 0x567321d5f9cf in EVP_RAND_CTX_new build_asan/./contrib/openssl/crypto/evp/evp_rand.c:353:11 #4 0x567321d627db in rand_new_drbg build_asan/./contrib/openssl/crypto/rand/rand_lib.c:658:11 #5 0x567321d61e7b in RAND_get0_public build_asan/./contrib/openssl/crypto/rand/rand_lib.c:777:16 #6 0x567321d61d4f in RAND_bytes_ex build_asan/./contrib/openssl/crypto/rand/rand_lib.c:378:12 #7 0x56731cfe9267 in ossl_random openssl.c #8 0x56731cf534ae in Curl_rand (/data/ch4/build_asan/programs/clickhouse+0x327c24ae) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #9 0x56731cf757dc in Curl_socketpair (/data/ch4/build_asan/programs/clickhouse+0x327e47dc) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#10 0x56731cf40bfe in Curl_multi_handle (/data/ch4/build_asan/programs/clickhouse+0x327afbfe) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#11 0x56731cecb260 in curl_easy_perform (/data/ch4/build_asan/programs/clickhouse+0x3273a260) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#12 0x56731cd4a351 in Azure::Core::Http::CurlConnection::CurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2441:24 openssl#13 0x56731cd3176b in std::__1::__unique_if<Azure::Core::Http::CurlConnection>::__unique_single std::__1::make_unique[abi:v15000]<Azure::Core::Http::CurlConnection, Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(Azure::Core::Http::Request&, Azure::Core::H ttp::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/llvm-project/libcxx/include/__memory/unique_ptr.h:714:32 openssl#14 0x56731cd3176b in Azure::Core::Http::_detail::CurlConnectionPool::ExtractOrCreateCurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, bool) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2126:10 openssl#15 0x56731cd2f891 in Azure::Core::Http::CurlTransport::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:351:48 openssl#16 0x56731cdd66db in Azure::Core::Http::Policies::_internal::TransportPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/transport_policy.cpp:121:40 openssl#17 0x56731cd7c75b in Azure::Core::Http::Policies::_internal::LogPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/log_policy.cpp:114:23 openssl#18 0x56731cdd0218 in Azure::Core::Http::Policies::_internal::RequestActivityPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/request_activity_policy.cpp:110:23 openssl#19 0x56731cec5f18 in Azure::Storage::_internal::StoragePerRetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_per_retry_policy.cpp:57:23 openssl#20 0x56731cec6d0b in Azure::Storage::_internal::StorageSwitchToSecondaryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_switch_to_secondary_policy.cpp:36:32 openssl#21 0x56731cdcd019 in Azure::Core::Http::Policies::_internal::RetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/retry_policy.cpp:146:34 openssl#22 0x56731cdd6e17 in Azure::Core::Http::Policies::_internal::TelemetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/telemetry_policy.cpp:23:21 openssl#23 0x56731cdb0ef5 in Azure::Core::Http::Policies::_internal::RequestIdPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/http/policies/policy.hpp:453:27 openssl#24 0x56731cdfc53e in Azure::Storage::_internal::StorageServiceVersionPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/inc/azure/storage/common/internal/storage_service_version_policy.hpp:34:25 openssl#25 0x56731ce4bff1 in Azure::Core::Http::_internal::HttpPipeline::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/internal/http/pipeline.hpp:230:29 openssl#26 0x56731ce4bff1 in Azure::Storage::Blobs::_detail::BlobContainerClient::Create(Azure::Core::Http::_internal::HttpPipeline&, Azure::Core::Url const&, Azure::Storage::Blobs::_detail::BlobContainerClient::CreateBlobContainerOptions const&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/rest_client.cpp:1415:36 openssl#27 0x56731ce0bdd8 in Azure::Storage::Blobs::BlobContainerClient::Create(Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_container_client.cpp:258:12 openssl#28 0x56731ce396dc in Azure::Storage::Blobs::BlobServiceClient::CreateBlobContainer(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp:264:41 openssl#29 0x56731018fcff in DB::getAzureBlobContainerClient(Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./src/Disks/ObjectStorages/AzureBlobStorage/AzureBlobStorageAuth.cpp:236:75 openssl#30 0x5673115a7352 in DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:315:13 openssl#31 0x5673115a7352 in decltype(std::declval<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const> const&>(), std::declval<bool>() )) std::__1::__invoke[abi:v15000]<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#32 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IObjectStorage>, false>::__call<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_pt r<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#33 0x5673115a7352 in std::__1::__function::__default_alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v 15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 openssl#34 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__function::__policy_invoker<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::__call_impl<std::__1::__function::__default _alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>>(std::__1::__function::__policy_storage const*, std::__1::basic_string<cha r, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:716:16 openssl#35 0x5673115a0780 in std::__1::__function::__policy_func<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::_ _1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:848:16 openssl#36 0x5673115a0780 in std::__1::function<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:1187:12 openssl#37 0x5673115a0780 in DB::ObjectStorageFactory::create(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:135:12 openssl#38 0x56731159ef45 in DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1: :shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool) const build_asan/./src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp:27:64 openssl#39 0x56731159ef45 in decltype(std::declval<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const>>(), std::declval<std::__1::map<std: :__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&>(), std::declval<bool>(), std::declval<bool>())) std::__1::__invoke[abi:v15000]<DB::regis terDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::_ _1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_ string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#40 0x56731159ef45 in std::__1::shared_ptr<DB::IDisk> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IDisk>, false>::__call<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0 &, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<ch ar>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#41 0x56731159ef45 in std::__1::__function::__default_alloc_func<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0, std::__1::shared_ptr<DB::IDisk> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, s td::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator <char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::b asic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 ```
thevar1able
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Jun 6, 2025
During my testing (*), I got below stack about leaked memory. - at database startup, Azure is registered as an object storage (--> registerAzureObjectStorage) - this calls into Azure, then into curl, and then into OpenSSL - curl asks OpenSSL for a bunch of random numbers (--> function 'ossl_random' in curl's OpenSSL wrapper) - OpenSSL initializes the random number generator and stores it in some random number generator context object (--> *RAND_get0_public) - this object is registered via pthread_key_create and pthread_setspecific registered in TLS - if registerAzureObjectStorage was the only place which initializes the RNG, we could argue that the leaked memory does not matter anyways as it is released after shutdown - RAND_get0_public also registers a free handler (rand_delete_thread_state) that runs in TLS, so the memory is released also if registration is called from arbitrary other threads. In sum: this is a false positive. (*) ClickHouse/clickhouse-private#10107 (comment) ``` ================================================================= ==2757181==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x5672f4a48083 in malloc (/data/ch4/build_asan/programs/clickhouse+0xa2b7083) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #1 0x567321d05c7e in CRYPTO_malloc build_asan/./contrib/openssl/crypto/mem.c:202:11 #2 0x567321d05c7e in CRYPTO_zalloc build_asan/./contrib/openssl/crypto/mem.c:222:11 #3 0x567321d5f9cf in EVP_RAND_CTX_new build_asan/./contrib/openssl/crypto/evp/evp_rand.c:353:11 #4 0x567321d627db in rand_new_drbg build_asan/./contrib/openssl/crypto/rand/rand_lib.c:658:11 #5 0x567321d61e7b in RAND_get0_public build_asan/./contrib/openssl/crypto/rand/rand_lib.c:777:16 #6 0x567321d61d4f in RAND_bytes_ex build_asan/./contrib/openssl/crypto/rand/rand_lib.c:378:12 #7 0x56731cfe9267 in ossl_random openssl.c #8 0x56731cf534ae in Curl_rand (/data/ch4/build_asan/programs/clickhouse+0x327c24ae) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #9 0x56731cf757dc in Curl_socketpair (/data/ch4/build_asan/programs/clickhouse+0x327e47dc) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#10 0x56731cf40bfe in Curl_multi_handle (/data/ch4/build_asan/programs/clickhouse+0x327afbfe) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#11 0x56731cecb260 in curl_easy_perform (/data/ch4/build_asan/programs/clickhouse+0x3273a260) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#12 0x56731cd4a351 in Azure::Core::Http::CurlConnection::CurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2441:24 openssl#13 0x56731cd3176b in std::__1::__unique_if<Azure::Core::Http::CurlConnection>::__unique_single std::__1::make_unique[abi:v15000]<Azure::Core::Http::CurlConnection, Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(Azure::Core::Http::Request&, Azure::Core::H ttp::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/llvm-project/libcxx/include/__memory/unique_ptr.h:714:32 openssl#14 0x56731cd3176b in Azure::Core::Http::_detail::CurlConnectionPool::ExtractOrCreateCurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, bool) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2126:10 openssl#15 0x56731cd2f891 in Azure::Core::Http::CurlTransport::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:351:48 openssl#16 0x56731cdd66db in Azure::Core::Http::Policies::_internal::TransportPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/transport_policy.cpp:121:40 openssl#17 0x56731cd7c75b in Azure::Core::Http::Policies::_internal::LogPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/log_policy.cpp:114:23 openssl#18 0x56731cdd0218 in Azure::Core::Http::Policies::_internal::RequestActivityPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/request_activity_policy.cpp:110:23 openssl#19 0x56731cec5f18 in Azure::Storage::_internal::StoragePerRetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_per_retry_policy.cpp:57:23 openssl#20 0x56731cec6d0b in Azure::Storage::_internal::StorageSwitchToSecondaryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_switch_to_secondary_policy.cpp:36:32 openssl#21 0x56731cdcd019 in Azure::Core::Http::Policies::_internal::RetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/retry_policy.cpp:146:34 openssl#22 0x56731cdd6e17 in Azure::Core::Http::Policies::_internal::TelemetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/telemetry_policy.cpp:23:21 openssl#23 0x56731cdb0ef5 in Azure::Core::Http::Policies::_internal::RequestIdPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/http/policies/policy.hpp:453:27 openssl#24 0x56731cdfc53e in Azure::Storage::_internal::StorageServiceVersionPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/inc/azure/storage/common/internal/storage_service_version_policy.hpp:34:25 openssl#25 0x56731ce4bff1 in Azure::Core::Http::_internal::HttpPipeline::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/internal/http/pipeline.hpp:230:29 openssl#26 0x56731ce4bff1 in Azure::Storage::Blobs::_detail::BlobContainerClient::Create(Azure::Core::Http::_internal::HttpPipeline&, Azure::Core::Url const&, Azure::Storage::Blobs::_detail::BlobContainerClient::CreateBlobContainerOptions const&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/rest_client.cpp:1415:36 openssl#27 0x56731ce0bdd8 in Azure::Storage::Blobs::BlobContainerClient::Create(Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_container_client.cpp:258:12 openssl#28 0x56731ce396dc in Azure::Storage::Blobs::BlobServiceClient::CreateBlobContainer(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp:264:41 openssl#29 0x56731018fcff in DB::getAzureBlobContainerClient(Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./src/Disks/ObjectStorages/AzureBlobStorage/AzureBlobStorageAuth.cpp:236:75 openssl#30 0x5673115a7352 in DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:315:13 openssl#31 0x5673115a7352 in decltype(std::declval<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const> const&>(), std::declval<bool>() )) std::__1::__invoke[abi:v15000]<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#32 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IObjectStorage>, false>::__call<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_pt r<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#33 0x5673115a7352 in std::__1::__function::__default_alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v 15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 openssl#34 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__function::__policy_invoker<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::__call_impl<std::__1::__function::__default _alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>>(std::__1::__function::__policy_storage const*, std::__1::basic_string<cha r, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:716:16 openssl#35 0x5673115a0780 in std::__1::__function::__policy_func<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::_ _1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:848:16 openssl#36 0x5673115a0780 in std::__1::function<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:1187:12 openssl#37 0x5673115a0780 in DB::ObjectStorageFactory::create(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:135:12 openssl#38 0x56731159ef45 in DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1: :shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool) const build_asan/./src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp:27:64 openssl#39 0x56731159ef45 in decltype(std::declval<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const>>(), std::declval<std::__1::map<std: :__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&>(), std::declval<bool>(), std::declval<bool>())) std::__1::__invoke[abi:v15000]<DB::regis terDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::_ _1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_ string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#40 0x56731159ef45 in std::__1::shared_ptr<DB::IDisk> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IDisk>, false>::__call<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0 &, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<ch ar>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#41 0x56731159ef45 in std::__1::__function::__default_alloc_func<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0, std::__1::shared_ptr<DB::IDisk> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, s td::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator <char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::b asic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 ```
thevar1able
pushed a commit
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Aug 14, 2025
During my testing (*), I got below stack about leaked memory. - at database startup, Azure is registered as an object storage (--> registerAzureObjectStorage) - this calls into Azure, then into curl, and then into OpenSSL - curl asks OpenSSL for a bunch of random numbers (--> function 'ossl_random' in curl's OpenSSL wrapper) - OpenSSL initializes the random number generator and stores it in some random number generator context object (--> *RAND_get0_public) - this object is registered via pthread_key_create and pthread_setspecific registered in TLS - if registerAzureObjectStorage was the only place which initializes the RNG, we could argue that the leaked memory does not matter anyways as it is released after shutdown - RAND_get0_public also registers a free handler (rand_delete_thread_state) that runs in TLS, so the memory is released also if registration is called from arbitrary other threads. In sum: this is a false positive. (*) ClickHouse/clickhouse-private#10107 (comment) ``` ================================================================= ==2757181==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x5672f4a48083 in malloc (/data/ch4/build_asan/programs/clickhouse+0xa2b7083) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #1 0x567321d05c7e in CRYPTO_malloc build_asan/./contrib/openssl/crypto/mem.c:202:11 #2 0x567321d05c7e in CRYPTO_zalloc build_asan/./contrib/openssl/crypto/mem.c:222:11 #3 0x567321d5f9cf in EVP_RAND_CTX_new build_asan/./contrib/openssl/crypto/evp/evp_rand.c:353:11 #4 0x567321d627db in rand_new_drbg build_asan/./contrib/openssl/crypto/rand/rand_lib.c:658:11 #5 0x567321d61e7b in RAND_get0_public build_asan/./contrib/openssl/crypto/rand/rand_lib.c:777:16 #6 0x567321d61d4f in RAND_bytes_ex build_asan/./contrib/openssl/crypto/rand/rand_lib.c:378:12 #7 0x56731cfe9267 in ossl_random openssl.c #8 0x56731cf534ae in Curl_rand (/data/ch4/build_asan/programs/clickhouse+0x327c24ae) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #9 0x56731cf757dc in Curl_socketpair (/data/ch4/build_asan/programs/clickhouse+0x327e47dc) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#10 0x56731cf40bfe in Curl_multi_handle (/data/ch4/build_asan/programs/clickhouse+0x327afbfe) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#11 0x56731cecb260 in curl_easy_perform (/data/ch4/build_asan/programs/clickhouse+0x3273a260) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#12 0x56731cd4a351 in Azure::Core::Http::CurlConnection::CurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2441:24 openssl#13 0x56731cd3176b in std::__1::__unique_if<Azure::Core::Http::CurlConnection>::__unique_single std::__1::make_unique[abi:v15000]<Azure::Core::Http::CurlConnection, Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(Azure::Core::Http::Request&, Azure::Core::H ttp::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/llvm-project/libcxx/include/__memory/unique_ptr.h:714:32 openssl#14 0x56731cd3176b in Azure::Core::Http::_detail::CurlConnectionPool::ExtractOrCreateCurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, bool) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2126:10 openssl#15 0x56731cd2f891 in Azure::Core::Http::CurlTransport::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:351:48 openssl#16 0x56731cdd66db in Azure::Core::Http::Policies::_internal::TransportPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/transport_policy.cpp:121:40 openssl#17 0x56731cd7c75b in Azure::Core::Http::Policies::_internal::LogPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/log_policy.cpp:114:23 openssl#18 0x56731cdd0218 in Azure::Core::Http::Policies::_internal::RequestActivityPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/request_activity_policy.cpp:110:23 openssl#19 0x56731cec5f18 in Azure::Storage::_internal::StoragePerRetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_per_retry_policy.cpp:57:23 openssl#20 0x56731cec6d0b in Azure::Storage::_internal::StorageSwitchToSecondaryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_switch_to_secondary_policy.cpp:36:32 openssl#21 0x56731cdcd019 in Azure::Core::Http::Policies::_internal::RetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/retry_policy.cpp:146:34 openssl#22 0x56731cdd6e17 in Azure::Core::Http::Policies::_internal::TelemetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/telemetry_policy.cpp:23:21 openssl#23 0x56731cdb0ef5 in Azure::Core::Http::Policies::_internal::RequestIdPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/http/policies/policy.hpp:453:27 openssl#24 0x56731cdfc53e in Azure::Storage::_internal::StorageServiceVersionPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/inc/azure/storage/common/internal/storage_service_version_policy.hpp:34:25 openssl#25 0x56731ce4bff1 in Azure::Core::Http::_internal::HttpPipeline::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/internal/http/pipeline.hpp:230:29 openssl#26 0x56731ce4bff1 in Azure::Storage::Blobs::_detail::BlobContainerClient::Create(Azure::Core::Http::_internal::HttpPipeline&, Azure::Core::Url const&, Azure::Storage::Blobs::_detail::BlobContainerClient::CreateBlobContainerOptions const&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/rest_client.cpp:1415:36 openssl#27 0x56731ce0bdd8 in Azure::Storage::Blobs::BlobContainerClient::Create(Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_container_client.cpp:258:12 openssl#28 0x56731ce396dc in Azure::Storage::Blobs::BlobServiceClient::CreateBlobContainer(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp:264:41 openssl#29 0x56731018fcff in DB::getAzureBlobContainerClient(Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./src/Disks/ObjectStorages/AzureBlobStorage/AzureBlobStorageAuth.cpp:236:75 openssl#30 0x5673115a7352 in DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:315:13 openssl#31 0x5673115a7352 in decltype(std::declval<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const> const&>(), std::declval<bool>() )) std::__1::__invoke[abi:v15000]<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#32 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IObjectStorage>, false>::__call<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_pt r<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#33 0x5673115a7352 in std::__1::__function::__default_alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v 15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 openssl#34 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__function::__policy_invoker<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::__call_impl<std::__1::__function::__default _alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>>(std::__1::__function::__policy_storage const*, std::__1::basic_string<cha r, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:716:16 openssl#35 0x5673115a0780 in std::__1::__function::__policy_func<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::_ _1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:848:16 openssl#36 0x5673115a0780 in std::__1::function<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:1187:12 openssl#37 0x5673115a0780 in DB::ObjectStorageFactory::create(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:135:12 openssl#38 0x56731159ef45 in DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1: :shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool) const build_asan/./src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp:27:64 openssl#39 0x56731159ef45 in decltype(std::declval<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const>>(), std::declval<std::__1::map<std: :__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&>(), std::declval<bool>(), std::declval<bool>())) std::__1::__invoke[abi:v15000]<DB::regis terDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::_ _1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_ string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#40 0x56731159ef45 in std::__1::shared_ptr<DB::IDisk> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IDisk>, false>::__call<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0 &, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<ch ar>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#41 0x56731159ef45 in std::__1::__function::__default_alloc_func<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0, std::__1::shared_ptr<DB::IDisk> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, s td::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator <char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::b asic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 ```
thevar1able
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Oct 21, 2025
During my testing (*), I got below stack about leaked memory. - at database startup, Azure is registered as an object storage (--> registerAzureObjectStorage) - this calls into Azure, then into curl, and then into OpenSSL - curl asks OpenSSL for a bunch of random numbers (--> function 'ossl_random' in curl's OpenSSL wrapper) - OpenSSL initializes the random number generator and stores it in some random number generator context object (--> *RAND_get0_public) - this object is registered via pthread_key_create and pthread_setspecific registered in TLS - if registerAzureObjectStorage was the only place which initializes the RNG, we could argue that the leaked memory does not matter anyways as it is released after shutdown - RAND_get0_public also registers a free handler (rand_delete_thread_state) that runs in TLS, so the memory is released also if registration is called from arbitrary other threads. In sum: this is a false positive. (*) ClickHouse/clickhouse-private#10107 (comment) ``` ================================================================= ==2757181==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x5672f4a48083 in malloc (/data/ch4/build_asan/programs/clickhouse+0xa2b7083) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #1 0x567321d05c7e in CRYPTO_malloc build_asan/./contrib/openssl/crypto/mem.c:202:11 #2 0x567321d05c7e in CRYPTO_zalloc build_asan/./contrib/openssl/crypto/mem.c:222:11 #3 0x567321d5f9cf in EVP_RAND_CTX_new build_asan/./contrib/openssl/crypto/evp/evp_rand.c:353:11 #4 0x567321d627db in rand_new_drbg build_asan/./contrib/openssl/crypto/rand/rand_lib.c:658:11 #5 0x567321d61e7b in RAND_get0_public build_asan/./contrib/openssl/crypto/rand/rand_lib.c:777:16 #6 0x567321d61d4f in RAND_bytes_ex build_asan/./contrib/openssl/crypto/rand/rand_lib.c:378:12 #7 0x56731cfe9267 in ossl_random openssl.c #8 0x56731cf534ae in Curl_rand (/data/ch4/build_asan/programs/clickhouse+0x327c24ae) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) #9 0x56731cf757dc in Curl_socketpair (/data/ch4/build_asan/programs/clickhouse+0x327e47dc) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#10 0x56731cf40bfe in Curl_multi_handle (/data/ch4/build_asan/programs/clickhouse+0x327afbfe) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#11 0x56731cecb260 in curl_easy_perform (/data/ch4/build_asan/programs/clickhouse+0x3273a260) (BuildId: 4d868624feaa8b5598d9d0b327749c877bfb6cfd) openssl#12 0x56731cd4a351 in Azure::Core::Http::CurlConnection::CurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2441:24 openssl#13 0x56731cd3176b in std::__1::__unique_if<Azure::Core::Http::CurlConnection>::__unique_single std::__1::make_unique[abi:v15000]<Azure::Core::Http::CurlConnection, Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(Azure::Core::Http::Request&, Azure::Core::H ttp::CurlTransportOptions const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./contrib/llvm-project/libcxx/include/__memory/unique_ptr.h:714:32 openssl#14 0x56731cd3176b in Azure::Core::Http::_detail::CurlConnectionPool::ExtractOrCreateCurlConnection(Azure::Core::Http::Request&, Azure::Core::Http::CurlTransportOptions const&, bool) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:2126:10 openssl#15 0x56731cd2f891 in Azure::Core::Http::CurlTransport::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/core/azure-core/src/http/curl/curl.cpp:351:48 openssl#16 0x56731cdd66db in Azure::Core::Http::Policies::_internal::TransportPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/transport_policy.cpp:121:40 openssl#17 0x56731cd7c75b in Azure::Core::Http::Policies::_internal::LogPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/log_policy.cpp:114:23 openssl#18 0x56731cdd0218 in Azure::Core::Http::Policies::_internal::RequestActivityPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/request_activity_policy.cpp:110:23 openssl#19 0x56731cec5f18 in Azure::Storage::_internal::StoragePerRetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_per_retry_policy.cpp:57:23 openssl#20 0x56731cec6d0b in Azure::Storage::_internal::StorageSwitchToSecondaryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/src/storage_switch_to_secondary_policy.cpp:36:32 openssl#21 0x56731cdcd019 in Azure::Core::Http::Policies::_internal::RetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/retry_policy.cpp:146:34 openssl#22 0x56731cdd6e17 in Azure::Core::Http::Policies::_internal::TelemetryPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/src/http/telemetry_policy.cpp:23:21 openssl#23 0x56731cdb0ef5 in Azure::Core::Http::Policies::_internal::RequestIdPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/http/policies/policy.hpp:453:27 openssl#24 0x56731cdfc53e in Azure::Storage::_internal::StorageServiceVersionPolicy::Send(Azure::Core::Http::Request&, Azure::Core::Http::Policies::NextHttpPolicy, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-common/inc/azure/storage/common/internal/storage_service_version_policy.hpp:34:25 openssl#25 0x56731ce4bff1 in Azure::Core::Http::_internal::HttpPipeline::Send(Azure::Core::Http::Request&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/core/azure-core/inc/azure/core/internal/http/pipeline.hpp:230:29 openssl#26 0x56731ce4bff1 in Azure::Storage::Blobs::_detail::BlobContainerClient::Create(Azure::Core::Http::_internal::HttpPipeline&, Azure::Core::Url const&, Azure::Storage::Blobs::_detail::BlobContainerClient::CreateBlobContainerOptions const&, Azure::Core::Context const&) build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/rest_client.cpp:1415:36 openssl#27 0x56731ce0bdd8 in Azure::Storage::Blobs::BlobContainerClient::Create(Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_container_client.cpp:258:12 openssl#28 0x56731ce396dc in Azure::Storage::Blobs::BlobServiceClient::CreateBlobContainer(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Azure::Storage::Blobs::CreateBlobContainerOptions const&, Azure::Core::Context const&) const build_asan/./contrib/azure/sdk/storage/azure-storage-blobs/src/blob_service_client.cpp:264:41 openssl#29 0x56731018fcff in DB::getAzureBlobContainerClient(Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) build_asan/./src/Disks/ObjectStorages/AzureBlobStorage/AzureBlobStorageAuth.cpp:236:75 openssl#30 0x5673115a7352 in DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:315:13 openssl#31 0x5673115a7352 in decltype(std::declval<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const> const&>(), std::declval<bool>() )) std::__1::__invoke[abi:v15000]<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#32 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IObjectStorage>, false>::__call<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_pt r<DB::Context const> const&, bool>(DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#33 0x5673115a7352 in std::__1::__function::__default_alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v 15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 openssl#34 0x5673115a7352 in std::__1::shared_ptr<DB::IObjectStorage> std::__1::__function::__policy_invoker<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::__call_impl<std::__1::__function::__default _alloc_func<DB::registerAzureObjectStorage(DB::ObjectStorageFactory&)::$_0, std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>>(std::__1::__function::__policy_storage const*, std::__1::basic_string<cha r, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:716:16 openssl#35 0x5673115a0780 in std::__1::__function::__policy_func<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::_ _1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool&&) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:848:16 openssl#36 0x5673115a0780 in std::__1::function<std::__1::shared_ptr<DB::IObjectStorage> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:1187:12 openssl#37 0x5673115a0780 in DB::ObjectStorageFactory::create(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const> const&, bool) const build_asan/./src/Disks/ObjectStorages/ObjectStorageFactory.cpp:135:12 openssl#38 0x56731159ef45 in DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0::operator()(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1: :shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool) const build_asan/./src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp:27:64 openssl#39 0x56731159ef45 in decltype(std::declval<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&>()(std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<Poco::Util::AbstractConfiguration const&>(), std::declval<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(), std::declval<std::__1::shared_ptr<DB::Context const>>(), std::declval<std::__1::map<std: :__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&>(), std::declval<bool>(), std::declval<bool>())) std::__1::__invoke[abi:v15000]<DB::regis terDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::_ _1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_ string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:394:23 openssl#40 0x56731159ef45 in std::__1::shared_ptr<DB::IDisk> std::__1::__invoke_void_return_wrapper<std::__1::shared_ptr<DB::IDisk>, false>::__call<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool>(DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0 &, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<ch ar>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/invoke.h:470:16 openssl#41 0x56731159ef45 in std::__1::__function::__default_alloc_func<DB::registerDiskObjectStorage(DB::DiskFactory&, bool)::$_0, std::__1::shared_ptr<DB::IDisk> (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>, std::__1::map<std::__1::basic_string<char, s td::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool, bool)>::operator()[abi:v15000](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator <char>> const&, Poco::Util::AbstractConfiguration const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::shared_ptr<DB::Context const>&&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::shared_ptr<DB::IDisk>, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, std::__1::allocator<std::__1::pair<std::__1::b asic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const, std::__1::shared_ptr<DB::IDisk>>>> const&, bool&&, bool&&) build_asan/./contrib/llvm-project/libcxx/include/__functional/function.h:235:12 ```
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...buffer
FIXED misleading difference in behavior of aes_gcm_cipher() when empty input buffer is supplied by means of: