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    <title>MongoDB Jira</title>
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    <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>
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<item>
            <title>[SERVER-86146] Fix UBSAN errors seen with new TCMalloc</title>
                <link>https://jira.mongodb.org/browse/SERVER-86146</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The new TCMalloc &lt;a href=&quot;https://spruce.mongodb.com/version/65bc99d657e85a214a0bdf5a/tasks?page=0&amp;amp;sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC%3BNAME%3AASC&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;triggers a USBAN error&lt;/a&gt; in &lt;tt&gt;BSONIteratorSorted&lt;/tt&gt;. It&apos;s verified that compiling and running with the old allocator makes this go away.&lt;/p&gt;

&lt;p&gt;Investigate and fix.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2565231">SERVER-86146</key>
            <summary>Fix UBSAN errors seen with new TCMalloc</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="blake.oler@mongodb.com">Blake Oler</assignee>
                                    <reporter username="blake.oler@mongodb.com">Blake Oler</reporter>
                        <labels>
                    </labels>
                <created>Fri, 2 Feb 2024 16:26:16 +0000</created>
                <updated>Wed, 7 Feb 2024 11:55:56 +0000</updated>
                            <resolved>Wed, 7 Feb 2024 11:55:56 +0000</resolved>
                                                    <fixVersion>8.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="6073279" author="xgen-internal-githook" created="Tue, 6 Feb 2024 22:04:55 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Blake Oler&apos;, &apos;email&apos;: &apos;blake.oler@mongodb.com&apos;, &apos;username&apos;: &apos;BlakeIsBlake&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-86146&quot; title=&quot;Fix UBSAN errors seen with new TCMalloc&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-86146&quot;&gt;&lt;del&gt;SERVER-86146&lt;/del&gt;&lt;/a&gt; Change c-style array to vector to avoid potential alignment issues (#18711)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: a8356e7b5c5a0146727b727855225d75b07a78c9&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4bb334e8ba5b78f39c829873be48f9e26ebaaed6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4bb334e8ba5b78f39c829873be48f9e26ebaaed6&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2557567">SERVER-85737</issuekey>
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