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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-57350] ShardKeyPattern::parseShardKeyPattern() - NaN representation is being cast to integer</title>
                <link>https://jira.mongodb.org/browse/SERVER-57350</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;On &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e83b97b5fbc4a2c0cd8e8244391055438ded300a/src/mongo/bson/bsonelement.h#L949&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;bsonelement.h&lt;/a&gt; an unsafe cast is being done that could end up in a situation where NaN (which representation according to &lt;a href=&quot;https://262.ecma-international.org/11.0/#sec-ecmascript-language-types-number-type&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the EcmaScript specification&lt;/a&gt; is 9007199254740990) is being casted to an integer, the following example can cause such situation:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;let st = new ShardingTest({mongos:1, shards:1});&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;st.s.adminCommand({enableSharding: &apos;db&apos;});&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;st.s.adminCommand({shardCollection: &apos;db.test&apos;, key: { _id: NaN }});&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;p/&gt;
&lt;p&gt;Here when passing the index we end up trying to get &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e83b97b5fbc4a2c0cd8e8244391055438ded300a/src/mongo/bson/bsonelement.h#L946&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the number&lt;/a&gt; which does the cast. This causes failures on the fuzzer tests as can be seeing in the linked BF.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1766080">SERVER-57350</key>
            <summary>ShardKeyPattern::parseShardKeyPattern() - NaN representation is being cast to integer</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="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</reporter>
                        <labels>
                    </labels>
                <created>Wed, 2 Jun 2021 12:27:08 +0000</created>
                <updated>Sun, 29 Oct 2023 21:52:48 +0000</updated>
                            <resolved>Thu, 10 Jun 2021 22:03:06 +0000</resolved>
                                                    <fixVersion>5.0.4</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4107080" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 18:16:56 +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="4071978" author="xgen-internal-githook" created="Mon, 20 Sep 2021 16:51:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-57350&quot; title=&quot;ShardKeyPattern::parseShardKeyPattern() - NaN representation is being cast to integer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57350&quot;&gt;&lt;del&gt;SERVER-57350&lt;/del&gt;&lt;/a&gt; fix ShardKeyPattern::parseShardKeyPattern() to handle int values in key patterns that are out of bounds&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 6ebb5f9dfb1c3f6a2be267cd533c54fdfefbc993)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b48dc765489767e4fe3d2a6a9adf68ada2dfad9a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b48dc765489767e4fe3d2a6a9adf68ada2dfad9a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3871992" author="xgen-internal-githook" created="Thu, 10 Jun 2021 21:27:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-57350&quot; title=&quot;ShardKeyPattern::parseShardKeyPattern() - NaN representation is being cast to integer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57350&quot;&gt;&lt;del&gt;SERVER-57350&lt;/del&gt;&lt;/a&gt; fix ShardKeyPattern::parseShardKeyPattern() to handle int values in key patterns that are out of bounds&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6ebb5f9dfb1c3f6a2be267cd533c54fdfefbc993&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6ebb5f9dfb1c3f6a2be267cd533c54fdfefbc993&lt;/a&gt;&lt;/p&gt;</comment>
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