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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-62146] [SBE] Fix use-after-free bug with $arrayElemAt, $first, and $last</title>
                <link>https://jira.mongodb.org/browse/SERVER-62146</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A bug picked up by the agg wildcard fuzzer here. This bug can crash the server or cause a BufBuilder to hit the 64 MB memory limit. The investigator should look into the interplay between doing an $arrayElemAt where the input array is computed from a $setUnion and the index is a NumberDecimal or simply -1. I observed the server crash when using the NumberDecimal and the -1 caused the BufBuilder to run out of memory.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1953482">SERVER-62146</key>
            <summary>[SBE] Fix use-after-free bug with $arrayElemAt, $first, and $last</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="andrew.paroski@mongodb.com">Drew Paroski</assignee>
                                    <reporter username="eric.cox@mongodb.com">Eric Cox</reporter>
                        <labels>
                    </labels>
                <created>Fri, 17 Dec 2021 15:42:21 +0000</created>
                <updated>Sun, 29 Oct 2023 21:44:55 +0000</updated>
                            <resolved>Mon, 27 Dec 2021 21:38:56 +0000</resolved>
                                    <version>5.1.1</version>
                    <version>5.2.0-rc1</version>
                                    <fixVersion>5.3.0</fixVersion>
                    <fixVersion>5.1.2</fixVersion>
                    <fixVersion>5.2.0-rc4</fixVersion>
                                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="4269179" author="xgen-internal-githook" created="Tue, 28 Dec 2021 21:49:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Drew Paroski&apos;, &apos;email&apos;: &apos;drew.paroski@mongodb.com&apos;, &apos;username&apos;: &apos;paroski&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62146&quot; title=&quot;[SBE] Fix use-after-free bug with $arrayElemAt, $first, and $last&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62146&quot;&gt;&lt;del&gt;SERVER-62146&lt;/del&gt;&lt;/a&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;SBE&amp;#93;&lt;/span&gt; Fix use-after-free bug with $arrayElemAt, $first, and $last&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 168086cae37581eeaa7513bfa3976cf554ffc79a)&lt;br/&gt;
(cherry picked from commit e7234e51120edcc9bd67f0e0890c48b27df39397)&lt;br/&gt;
Branch: v5.1&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6888896c6ee5a38f6648647e8a7d288d286f44ad&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6888896c6ee5a38f6648647e8a7d288d286f44ad&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4269093" author="xgen-internal-githook" created="Tue, 28 Dec 2021 21:17:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Drew Paroski&apos;, &apos;email&apos;: &apos;drew.paroski@mongodb.com&apos;, &apos;username&apos;: &apos;paroski&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62146&quot; title=&quot;[SBE] Fix use-after-free bug with $arrayElemAt, $first, and $last&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62146&quot;&gt;&lt;del&gt;SERVER-62146&lt;/del&gt;&lt;/a&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;SBE&amp;#93;&lt;/span&gt; Fix use-after-free bug with $arrayElemAt, $first, and $last&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 168086cae37581eeaa7513bfa3976cf554ffc79a)&lt;br/&gt;
Branch: v5.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e7234e51120edcc9bd67f0e0890c48b27df39397&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e7234e51120edcc9bd67f0e0890c48b27df39397&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4268127" author="xgen-internal-githook" created="Mon, 27 Dec 2021 21:18:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Drew Paroski&apos;, &apos;email&apos;: &apos;drew.paroski@mongodb.com&apos;, &apos;username&apos;: &apos;paroski&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62146&quot; title=&quot;[SBE] Fix use-after-free bug with $arrayElemAt, $first, and $last&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62146&quot;&gt;&lt;del&gt;SERVER-62146&lt;/del&gt;&lt;/a&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;SBE&amp;#93;&lt;/span&gt; Fix use-after-free bug with $arrayElemAt, $first, and $last&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/168086cae37581eeaa7513bfa3976cf554ffc79a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/168086cae37581eeaa7513bfa3976cf554ffc79a&lt;/a&gt;&lt;/p&gt;</comment>
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