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    <title>MongoDB Jira</title>
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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-31262] Storage of _rbidCommandHandle can race with destruction of SyncSourceResolver</title>
                <link>https://jira.mongodb.org/browse/SERVER-31262</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;SyncSourceResolver::join waits for the Resolver&apos;s _state member to transition to kComplete. This transition is performed by the final &apos;_finishCallback()&apos; step, performed by the last callback scheduled by SyncSourceResolver. One of callback in the chain, _rbidRequestCallback, schedules a callback, takes a mutex on the SyncSourceResolver, and saves the handle into a member. However, nothing prevents the scheduled callback from executing, calling _finishCallback(), and allowing SyncSourceResolver&apos;s deconstructor to finish. If the handle is saved after the destructor calls, its own destructor will never be called, which prevents its shared_ptr&apos;s reference count from decrementing, causing a leak.&lt;/p&gt;</description>
                <environment></environment>
        <key id="432890">SERVER-31262</key>
            <summary>Storage of _rbidCommandHandle can race with destruction of SyncSourceResolver</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="13201">Fixed</resolution>
                                        <assignee username="siyuan.zhou@mongodb.com">Siyuan Zhou</assignee>
                                    <reporter username="spencer.jackson@mongodb.com">Spencer Jackson</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 Sep 2017 14:09:00 +0000</created>
                <updated>Mon, 30 Oct 2023 23:13:20 +0000</updated>
                            <resolved>Fri, 13 Oct 2017 20:41:23 +0000</resolved>
                                                    <fixVersion>3.4.11</fixVersion>
                    <fixVersion>3.5.13</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="1773246" author="xgen-internal-githook" created="Fri, 12 Jan 2018 20:13:44 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;siyuan.zhou@mongodb.com&apos;, &apos;name&apos;: &apos;Siyuan Zhou&apos;, &apos;username&apos;: &apos;visualzhou&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-31262&quot; title=&quot;Storage of _rbidCommandHandle can race with destruction of SyncSourceResolver&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-31262&quot;&gt;&lt;del&gt;SERVER-31262&lt;/del&gt;&lt;/a&gt; Storage of _rbidCommandHandle can race with destruction of SyncSourceResolver&lt;/p&gt;

&lt;p&gt;(cherry picked from commit f6e461f9a2680b48606658c2010ca6f20ee8e8b7)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2676b7aa412853c608c2cd834d53cb3c81aba985&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2676b7aa412853c608c2cd834d53cb3c81aba985&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1698798" author="xgen-internal-githook" created="Fri, 13 Oct 2017 20:40:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;siyuan.zhou@mongodb.com&apos;, &apos;name&apos;: &apos;Siyuan Zhou&apos;, &apos;username&apos;: &apos;visualzhou&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-31262&quot; title=&quot;Storage of _rbidCommandHandle can race with destruction of SyncSourceResolver&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-31262&quot;&gt;&lt;del&gt;SERVER-31262&lt;/del&gt;&lt;/a&gt; Storage of _rbidCommandHandle can race with destruction of SyncSourceResolver&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f6e461f9a2680b48606658c2010ca6f20ee8e8b7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f6e461f9a2680b48606658c2010ca6f20ee8e8b7&lt;/a&gt;&lt;/p&gt;</comment>
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