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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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-56516] Fix undefined behaviour in parsing code for $slice projectional operator</title>
                <link>https://jira.mongodb.org/browse/SERVER-56516</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;tt&gt;attemptToParseFindSlice&lt;/tt&gt;&#160;uses &lt;tt&gt;BSONElement::numberInt&lt;/tt&gt; to extract $slice value from BSON &lt;a href=&quot;https://github.com/mongodb/mongo/blob/49f6fcebd3c4a97abcd05c862ad1204eed9d66ef/src/mongo/db/query/projection_parser.cpp#L234&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;. If &lt;tt&gt;BSONElement&lt;/tt&gt; contains double NaN, +inf or -inf values, this method still converts it to int type &lt;a href=&quot;https://github.com/mongodb/mongo/blob/49f6fcebd3c4a97abcd05c862ad1204eed9d66ef/src/mongo/bson/bsonelement.h#L949&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;. This is undefined behaviour and is caught by UBSAN.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1697648">SERVER-56516</key>
            <summary>Fix undefined behaviour in parsing code for $slice projectional operator</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="nikita.lapkov@mongodb.com">Nikita Lapkov</assignee>
                                    <reporter username="nikita.lapkov@mongodb.com">Nikita Lapkov</reporter>
                        <labels>
                    </labels>
                <created>Fri, 30 Apr 2021 15:53:08 +0000</created>
                <updated>Sun, 29 Oct 2023 21:54:13 +0000</updated>
                            <resolved>Fri, 11 Jun 2021 16:12:25 +0000</resolved>
                                                    <fixVersion>4.4.7</fixVersion>
                    <fixVersion>5.0.0-rc2</fixVersion>
                    <fixVersion>4.2.16</fixVersion>
                    <fixVersion>4.0.27</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3948979" author="xgen-internal-githook" created="Mon, 19 Jul 2021 09:22:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nikita Lapkov&apos;, &apos;email&apos;: &apos;nikita.lapkov@mongodb.com&apos;, &apos;username&apos;: &apos;laplab&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56516&quot; title=&quot;Fix undefined behaviour in parsing code for $slice projectional operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56516&quot;&gt;&lt;del&gt;SERVER-56516&lt;/del&gt;&lt;/a&gt; Fix undefined behaviour in $slice arguments parsing&lt;/p&gt;

&lt;p&gt;(partially cherry picked from commit 19764c1864c1c57d9274238146e6843591bc6ce6)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5d763763db2fcd9b2799faa7e1ef246df3c325a9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5d763763db2fcd9b2799faa7e1ef246df3c325a9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3925438" author="xgen-internal-githook" created="Fri, 9 Jul 2021 15:14:57 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nikita Lapkov&apos;, &apos;email&apos;: &apos;nikita.lapkov@mongodb.com&apos;, &apos;username&apos;: &apos;laplab&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56516&quot; title=&quot;Fix undefined behaviour in parsing code for $slice projectional operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56516&quot;&gt;&lt;del&gt;SERVER-56516&lt;/del&gt;&lt;/a&gt; Fix undefined behaviour in $slice arguments parsing&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/729f6320ad56a7daf16fa06f6a655016e43a75e8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/729f6320ad56a7daf16fa06f6a655016e43a75e8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3873517" author="xgen-internal-githook" created="Fri, 11 Jun 2021 16:16:05 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nikita Lapkov&apos;, &apos;email&apos;: &apos;nikita.lapkov@mongodb.com&apos;, &apos;username&apos;: &apos;laplab&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56516&quot; title=&quot;Fix undefined behaviour in parsing code for $slice projectional operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56516&quot;&gt;&lt;del&gt;SERVER-56516&lt;/del&gt;&lt;/a&gt; Fix undefined behaviour in $slice arguments parsing&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 84ef6e51778fc42a39c85cf5a7a1e776ab94d1a7)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e5d16c96efeab3868aa9bac98d5371b87936b4ac&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e5d16c96efeab3868aa9bac98d5371b87936b4ac&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3873480" author="xgen-internal-githook" created="Fri, 11 Jun 2021 16:05:10 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nikita Lapkov&apos;, &apos;email&apos;: &apos;nikita.lapkov@mongodb.com&apos;, &apos;username&apos;: &apos;laplab&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56516&quot; title=&quot;Fix undefined behaviour in parsing code for $slice projectional operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56516&quot;&gt;&lt;del&gt;SERVER-56516&lt;/del&gt;&lt;/a&gt; Fix undefined behaviour in $slice arguments parsing&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8e9a4ff28dbf9bd50455aa99b7986e030f9d5923&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8e9a4ff28dbf9bd50455aa99b7986e030f9d5923&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3873400" author="xgen-internal-githook" created="Fri, 11 Jun 2021 15:36:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Nikita Lapkov&apos;, &apos;email&apos;: &apos;nikita.lapkov@mongodb.com&apos;, &apos;username&apos;: &apos;laplab&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56516&quot; title=&quot;Fix undefined behaviour in parsing code for $slice projectional operator&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56516&quot;&gt;&lt;del&gt;SERVER-56516&lt;/del&gt;&lt;/a&gt; Fix undefined behaviour in $slice arguments parsing&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 84ef6e51778fc42a39c85cf5a7a1e776ab94d1a7)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cbe262bb3d99708c5e59bf3c9a32c7e15ce78fe6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cbe262bb3d99708c5e59bf3c9a32c7e15ce78fe6&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="316869">SERVER-26148</issuekey>
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