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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-21696] applyOps with invalid ns field triggers fassert on MMAP</title>
                <link>https://jira.mongodb.org/browse/SERVER-21696</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;affects both 3.0 and 3.2:&lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="241439">SERVER-21696</key>
            <summary>applyOps with invalid ns field triggers fassert on MMAP</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="9">Done</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="robert.guo@mongodb.com">Robert Guo</reporter>
                        <labels>
                            <label>fuzzer-blacklist</label>
                    </labels>
                <created>Mon, 30 Nov 2015 16:28:05 +0000</created>
                <updated>Tue, 6 Dec 2022 04:38:51 +0000</updated>
                            <resolved>Mon, 14 Nov 2016 20:24:54 +0000</resolved>
                                    <version>3.0.7</version>
                    <version>3.2.0-rc4</version>
                    <version>3.4.0-rc3</version>
                                    <fixVersion>3.4.0-rc3</fixVersion>
                                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="1441600" author="robert.guo" created="Wed, 23 Nov 2016 19:53:13 +0000"  >&lt;p&gt;This was fixed in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22577&quot; title=&quot;mmapv1 should not allow creation of database names containing $&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22577&quot;&gt;&lt;del&gt;SERVER-22577&lt;/del&gt;&lt;/a&gt;, which introduced the &lt;tt&gt;massert&lt;/tt&gt; that prevented commands from running on invalid namespaces. &lt;/p&gt;

&lt;p&gt;I&apos;m going to remove the backport request on this ticket as &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22577&quot; title=&quot;mmapv1 should not allow creation of database names containing $&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22577&quot;&gt;&lt;del&gt;SERVER-22577&lt;/del&gt;&lt;/a&gt; was not backported.&lt;/p&gt;</comment>
                            <comment id="1433655" author="milkie" created="Mon, 14 Nov 2016 20:24:54 +0000"  >&lt;p&gt;I suspect one of the applyOps code changes now avoids this crash on 3.4.&lt;/p&gt;</comment>
                            <comment id="1433653" author="milkie" created="Mon, 14 Nov 2016 20:23:25 +0000"  >&lt;p&gt;Actually, I&apos;m going to resolve this ticket as Gone Away, and keep it focused on the fassert that still manifests on version 3.2 and prior.&lt;/p&gt;</comment>
                            <comment id="1433631" author="milkie" created="Mon, 14 Nov 2016 20:07:29 +0000"  >&lt;p&gt;No longer crashes with 3.4.0.  The massert is still there, however.&lt;/p&gt;</comment>
                            <comment id="1161520" author="martin.bligh" created="Tue, 2 Feb 2016 19:59:33 +0000"  >&lt;p&gt;Testcases now produces:&lt;br/&gt;
Assertion: 16886:nsToCollectionSubstring: no .&lt;br/&gt;
massert is operation fatal, not server fatal, which is correct&lt;/p&gt;

&lt;p/&gt;
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&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;
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					&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;inline StringData nsToCollectionSubstring(StringData ns) {&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;    size_t i = ns.find(&apos;.&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;   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;    massert(16886, &quot;nsToCollectionSubstring: no .&quot;, i != std::string::npos);&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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						&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;    return ns.substr(i + 1);&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</comment>
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            <issuekey id="264757">SERVER-22577</issuekey>
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