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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-29218] QuerySolutionNode not safely managed in all code paths</title>
                <link>https://jira.mongodb.org/browse/SERVER-29218</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;ASAN is showing that the CollectionScanNode created by makeCollectionScan is getting leaked. There are a few paths that do not explicitly delete this object:&lt;/p&gt;

&lt;p&gt;1) The MatchExpression shallowClone operation just after the CollectionScanNode creation can throw an exception.&lt;/p&gt;

&lt;p&gt;2) At least one error path in QueryPlannerAnalysis::analyzeDataAccess() exits early without freeing the &quot;solnRoot&quot; QuerySolutionNode object.&lt;/p&gt;</description>
                <environment></environment>
        <key id="383685">SERVER-29218</key>
            <summary>QuerySolutionNode not safely managed in all code paths</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="justin.seyster@mongodb.com">Justin Seyster</assignee>
                                    <reporter username="justin.seyster@mongodb.com">Justin Seyster</reporter>
                        <labels>
                    </labels>
                <created>Mon, 15 May 2017 19:29:35 +0000</created>
                <updated>Mon, 30 Oct 2023 23:16:47 +0000</updated>
                            <resolved>Wed, 17 May 2017 16:12:13 +0000</resolved>
                                                    <fixVersion>3.5.8</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1573476" author="xgen-internal-githook" created="Wed, 17 May 2017 15:57:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jseyster&apos;, u&apos;name&apos;: u&apos;Justin Seyster&apos;, u&apos;email&apos;: u&apos;justin.seyster@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29218&quot; title=&quot;QuerySolutionNode not safely managed in all code paths&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29218&quot;&gt;&lt;del&gt;SERVER-29218&lt;/del&gt;&lt;/a&gt; Use std:::unique_ptr to manage QuerySolutionNode objects&lt;/p&gt;

&lt;p&gt;This started with a test failure caused by a QuerySolutionNode getting&lt;br/&gt;
leaked in QueryPlannerAccess::makeCollectionScan().  I converted the&lt;br/&gt;
leaky pointer to std::unique_ptr management and then I spread&lt;br/&gt;
std::unique_ptr to all the places that interact with&lt;br/&gt;
makeCollectionScan().&lt;/p&gt;

&lt;p&gt;I may revisit this to use unique_ptrs for all QuerySolutionNode&lt;br/&gt;
references.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/19cf9cd89bf4b9796fc8a9452c9fbe5bc4b6eb05&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/19cf9cd89bf4b9796fc8a9452c9fbe5bc4b6eb05&lt;/a&gt;&lt;/p&gt;</comment>
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