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    <title>MongoDB Jira</title>
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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-4650] Malformed aggregation runCommand invocation crashes mongod process</title>
                <link>https://jira.mongodb.org/browse/SERVER-4650</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Executing the following malformed aggregation will crash mongod on (at least) Win64 :&lt;/p&gt;

&lt;p&gt;db.runCommand({ aggregate : &quot;t&quot;, pipeline : [{ $project:{b:{$gt:&lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;quot;$c&amp;quot;&amp;#93;&lt;/span&gt;}}}]})&lt;/p&gt;

&lt;p&gt;With mongod output :&lt;/p&gt;

&lt;p&gt;unhandled windows exMon Jan 09 16:34:31 access violation&lt;/p&gt;

&lt;p&gt;Adding another operand to the $gt resolves the issue.&lt;/p&gt;</description>
                <environment>Confirmed on Windows x64</environment>
        <key id="27977">SERVER-4650</key>
            <summary>Malformed aggregation runCommand invocation crashes mongod process</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="3">Duplicate</resolution>
                                        <assignee username="cwestin">Chris Westin</assignee>
                                    <reporter username="remonvv">Remon van Vliet</reporter>
                        <labels>
                            <label>aggregation</label>
                            <label>crash</label>
                    </labels>
                <created>Mon, 9 Jan 2012 15:37:52 +0000</created>
                <updated>Tue, 29 May 2012 14:53:22 +0000</updated>
                            <resolved>Fri, 13 Jan 2012 20:26:15 +0000</resolved>
                                                                    <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="79759" author="cwestin" created="Fri, 13 Jan 2012 20:25:54 +0000"  >&lt;p&gt;After fixing &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4389&quot; title=&quot;Wrong $eq format crashes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4389&quot;&gt;&lt;del&gt;SERVER-4389&lt;/del&gt;&lt;/a&gt;, this now produces the following error message:&lt;/p&gt;

&lt;p&gt;{&lt;br/&gt;
        &quot;errmsg&quot; : &quot;exception: the $gt operator requires 2 operand(s)&quot;,&lt;br/&gt;
        &quot;code&quot; : 16020,&lt;br/&gt;
        &quot;ok&quot; : 0&lt;br/&gt;
}&lt;/p&gt;</comment>
                            <comment id="78888" author="cwestin" created="Tue, 10 Jan 2012 19:29:04 +0000"  >&lt;p&gt;Crash:  required for 2.2, hence linked to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-447&quot; title=&quot;new aggregation framework&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-447&quot;&gt;&lt;del&gt;SERVER-447&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
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