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<channel>
    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[SERVER-21207] Leak in AsyncStream::connect</title>
                <link>https://jira.mongodb.org/browse/SERVER-21207</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Triggered by the fuzzer. Did not repro when building with gcc 4.8&lt;br/&gt;
mongo git hash: 8c09883af1&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0] Direct leak of 64 byte(s) in 4 object(s) allocated from:&lt;/span&gt;&lt;/pre&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #0 0xae13c9 in operator new(unsigned long) (/home/ubuntu/mongo/mongod+0xae13c9)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #1 0x27a3967 in std::_Function_base::_Base_manager&amp;lt;mongo::executor::NetworkInterfaceASIO::_setupSocket(mongo::executor::NetworkInterfaceASIO::AsyncOp*, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt;)::$_1&amp;gt;::_M_clone(std::_Any_data&amp;amp;, std::_Any_data const&amp;amp;, std::integral_constant&amp;lt;bool, false&amp;gt;) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1910&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #2 0x27a3967 in std::_Function_base::_Base_manager&amp;lt;mongo::executor::NetworkInterfaceASIO::_setupSocket(mongo::executor::NetworkInterfaceASIO::AsyncOp*, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt;)::$_1&amp;gt;::_M_manager(std::_Any_data&amp;amp;, std::_Any_data const&amp;amp;, std::_Manager_operation) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1946&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #3 0x270fe69 in basic_resolver_iterator /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:2442&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #4 0x270fe69 in mongo::executor::AsyncStream::connect(asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt;, std::function&amp;lt;void (std::error_code)&amp;gt;&amp;amp;&amp;amp;) /home/ubuntu/mongo/src/mongo/executor/async_stream.cpp:50&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #5 0x27a1500 in mongo::executor::NetworkInterfaceASIO::_setupSocket(mongo::executor::NetworkInterfaceASIO::AsyncOp*, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt;) /home/ubuntu/mongo/src/mongo/executor/network_interface_asio_connect.cpp:117&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #6 0x27a6251 in operator() /home/ubuntu/mongo/src/mongo/executor/network_interface_asio_connect.cpp:103&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #7 0x27a6251 in basic_resolver_iterator /home/ubuntu/mongo/src/mongo/executor/network_interface_asio.h:348&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #8 0x27a6251 in basic_resolver_iterator /home/ubuntu/mongo/src/mongo/executor/network_interface_asio_connect.cpp:102&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #9 0x27a6251 in asio::detail::binder2&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, std::error_code, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt; &amp;gt;::operator()() /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/detail/bind_handler.hpp:160&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #10 0x27a6251 in void asio::asio_handler_invoke&amp;lt;asio::detail::binder2&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, std::error_code, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt; &amp;gt; &amp;gt;(asio::detail::binder2&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, std::error_code, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt; &amp;gt;&amp;amp;, ...) /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/handler_invoke_hook.hpp:68&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #11 0x27a6251 in void asio_handler_invoke_helpers::invoke&amp;lt;asio::detail::binder2&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, std::error_code, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt; &amp;gt;, mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0&amp;gt;(asio::detail::binder2&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, std::error_code, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt; &amp;gt;&amp;amp;, mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0&amp;amp;) /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/detail/handler_invoke_helpers.hpp:37&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #12 0x27a6251 in void asio::detail::handler_work&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, asio::system_executor&amp;gt;::complete&amp;lt;asio::detail::binder2&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, std::error_code, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt; &amp;gt; &amp;gt;(asio::detail::binder2&amp;lt;mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0, std::error_code, asio::ip::basic_resolver_iterator&amp;lt;asio::ip::tcp&amp;gt; &amp;gt;&amp;amp;, mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0&amp;amp;) /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/detail/handler_work.hpp:81&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #13 0x27a6251 in asio::detail::resolve_op&amp;lt;asio::ip::tcp, mongo::executor::NetworkInterfaceASIO::_connect(mongo::executor::NetworkInterfaceASIO::AsyncOp*)::$_0&amp;gt;::do_complete(void*, asio::detail::scheduler_operation*, std::error_code const&amp;amp;, unsigned long) /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/detail/resolve_op.hpp:113&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #14 0x30d709f in asio::detail::scheduler_operation::complete(void*, std::error_code const&amp;amp;, unsigned long) /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/detail/scheduler_operation.hpp:39&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #15 0x30d709f in asio::detail::scheduler::do_run_one(asio::detail::scoped_lock&amp;lt;asio::detail::posix_mutex&amp;gt;&amp;amp;, asio::detail::scheduler_thread_info&amp;amp;, std::error_code const&amp;amp;) /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/detail/impl/scheduler.ipp:369&lt;/span&gt;&lt;/pre&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #16 0x30bb859 in asio::detail::scheduler::run(std::error_code&amp;amp;) /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/detail/impl/scheduler.ipp:146&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #17 0x30bb4df in asio::io_service::run() /home/ubuntu/mongo/src/third_party/asio-asio-1-11-0/asio/include/asio/impl/io_service.ipp:60&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #18 0x276e93c in operator() /home/ubuntu/mongo/src/mongo/executor/network_interface_asio.cpp:107&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #19 0x276e93c in void std::_Bind_simple&amp;lt;mongo::executor::NetworkInterfaceASIO::startup()::$_0 ()&amp;gt;::_M_invoke&amp;lt;&amp;gt;(std::_Index_tuple&amp;lt;&amp;gt;) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1731&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #20 0x276e93c in std::_Bind_simple&amp;lt;mongo::executor::NetworkInterfaceASIO::startup()::$_0 ()&amp;gt;::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1720&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #21 0x276e93c in std::thread::_Impl&amp;lt;std::_Bind_simple&amp;lt;mongo::executor::NetworkInterfaceASIO::startup()::$_0 ()&amp;gt; &amp;gt;::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/thread:115&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;[ShardedClusterFixture:job0:shard0]     #22 0x7f52a39eda3f (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xb1a3f)&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="236897">SERVER-21207</key>
            <summary>Leak in AsyncStream::connect</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="2">Won&apos;t Fix</resolution>
                                        <assignee username="robert.guo@mongodb.com">Robert Guo</assignee>
                                    <reporter username="robert.guo@mongodb.com">Robert Guo</reporter>
                        <labels>
                    </labels>
                <created>Thu, 29 Oct 2015 19:19:05 +0000</created>
                <updated>Thu, 14 Apr 2016 15:19:37 +0000</updated>
                            <resolved>Thu, 29 Oct 2015 22:04:44 +0000</resolved>
                                                                    <component>Networking</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1074760" author="robert.guo" created="Thu, 29 Oct 2015 22:32:23 +0000"  >&lt;p&gt;@Drew This isn&apos;t a problem for our ASAN builders since they have been updated to Ubuntu 1410 and clang 3.5. Our clang builds on mongodb.org are also using clang-3.5.&lt;br/&gt;
See: &lt;a href=&quot;https://github.com/mongodb/mongo/commit/0924e369fb45d6597e3ad72c701fca9be7c61b32#diff-71ccc9b828b2d68dab47c8be07ab6f96R3663&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0924e369fb45d6597e3ad72c701fca9be7c61b32#diff-71ccc9b828b2d68dab47c8be07ab6f96R3663&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;@Adam I looked on llvm and gcc&apos;s bugzilla but didn&apos;t find anything relevant. Currently I don&apos;t think this bug has any real impact. If it turns up in an Evergreen ASAN builder in the future (when jstestfuzzer + sharding is committed), I can dig a little deeper. &lt;/p&gt;

&lt;p&gt;my search on gcc: &lt;a href=&quot;https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&amp;amp;bug_status=VERIFIED&amp;amp;bug_status=CLOSED&amp;amp;cf_known_to_fail=4.8.0&amp;amp;cf_known_to_fail=4.8.1&amp;amp;cf_known_to_fail=4.8.2&amp;amp;cf_known_to_fail=4.8.3&amp;amp;cf_known_to_fail=4.8.4&amp;amp;cf_known_to_fail=4.8.5&amp;amp;cf_known_to_fail_type=allwords&amp;amp;cf_known_to_work_type=allwords&amp;amp;component=libstdc%2B%2B&amp;amp;query_format=advanced&amp;amp;short_desc=leak&amp;amp;short_desc_type=allwords&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&amp;amp;bug_status=VERIFIED&amp;amp;bug_status=CLOSED&amp;amp;cf_known_to_fail=4.8.0&amp;amp;cf_known_to_fail=4.8.1&amp;amp;cf_known_to_fail=4.8.2&amp;amp;cf_known_to_fail=4.8.3&amp;amp;cf_known_to_fail=4.8.4&amp;amp;cf_known_to_fail=4.8.5&amp;amp;cf_known_to_fail_type=allwords&amp;amp;cf_known_to_work_type=allwords&amp;amp;component=libstdc%2B%2B&amp;amp;query_format=advanced&amp;amp;short_desc=leak&amp;amp;short_desc_type=allwords&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1074740" author="acm" created="Thu, 29 Oct 2015 22:14:24 +0000"  >&lt;p&gt;I second Adam&apos;s concern. If we don&apos;t address this, we are going to have red tests on the ASAN builder and that is a big problem as it can mask other errors. Potentially, we could upgrade the ASAN builder to use a newer OS image that comes with newer clang to work around?&lt;/p&gt;</comment>
                            <comment id="1074735" author="adam.midvidy" created="Thu, 29 Oct 2015 22:07:54 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=robert.guo&quot; class=&quot;user-hover&quot; rel=&quot;robert.guo&quot;&gt;robert.guo&lt;/a&gt; is there a relevant libstdc++ or clang bug for this? I want to make sure that it is fixed in the toolchains with which we build our releases.&lt;/p&gt;</comment>
                            <comment id="1074730" author="robert.guo" created="Thu, 29 Oct 2015 22:04:34 +0000"  >&lt;p&gt;This is most likely caused by a leak in libstdc&amp;#43;&amp;#43;; it occurs frequently on Ubuntu 14.04.3 with libstdc&amp;#43;&amp;#43; 6.0.19 and clang 3.4. &lt;/p&gt;

&lt;p&gt;Using clang 3.5 or 3.6 fixes the problem.&lt;/p&gt;

&lt;p&gt;I will close this ticket as a &quot;Won&apos;t fix&quot; as it is not an issue with MongoDB&apos;s code&lt;/p&gt;</comment>
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