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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-59346] Coverity analysis defect 120377: Bad bit shift operation</title>
                <link>https://jira.mongodb.org/browse/SERVER-59346</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Bad bit shift operation&lt;/p&gt;

&lt;p&gt; The operation may have an undefined behavior or yield an unexpected result. A bit shift operation has a shift amount which is too large or has a negative value.&lt;br/&gt;
/src/mongo/bson/util/simple8b.cpp:422: BAD_SHIFT 120377 Checking &quot;trailingZerosCount == 124&quot; implies that &quot;trailingZerosCount&quot; is 124 on the true branch.&lt;br/&gt;
/src/mongo/bson/util/simple8b.cpp:423: BAD_SHIFT 120377 In expression &quot;value &amp;gt;&amp;gt; trailingZerosCount&quot;, right shifting by more than 63 bits has undefined behavior.  The shift amount, &quot;trailingZerosCount&quot;, is 124.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1851919">SERVER-59346</key>
            <summary>Coverity analysis defect 120377: Bad bit shift operation</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="luke.bhan@mongodb.com">Luke Bhan</assignee>
                                    <reporter username="xgen-internal-coverity">Coverity Collector User</reporter>
                        <labels>
                            <label>coverity</label>
                    </labels>
                <created>Mon, 16 Aug 2021 13:08:55 +0000</created>
                <updated>Sun, 29 Oct 2023 21:49:33 +0000</updated>
                            <resolved>Fri, 20 Aug 2021 18:49:53 +0000</resolved>
                                                    <fixVersion>5.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4107691" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 18:33:31 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="4014386" author="xgen-internal-githook" created="Fri, 20 Aug 2021 19:55:03 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;lukebhan&apos;, &apos;email&apos;: &apos;luke.bhan@vanderbilt.edu&apos;, &apos;username&apos;: &apos;lukebhan&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-59346&quot; title=&quot;Coverity analysis defect 120377: Bad bit shift operation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-59346&quot;&gt;&lt;del&gt;SERVER-59346&lt;/del&gt;&lt;/a&gt; Change to handle int128t cases for simple8b&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6865365ee1761d00b76097e01748cbe35ec2df48&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6865365ee1761d00b76097e01748cbe35ec2df48&lt;/a&gt;&lt;/p&gt;</comment>
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