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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-3208] unsafe usage of namespace details transient on yield in update.cpp</title>
                <link>https://jira.mongodb.org/browse/SERVER-3208</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;        /* idea with these here it to make them loop invariant for multi updates, and thus be a bit faster for that case */&lt;br/&gt;
        /* NOTE: when yield() is added herein, these must be refreshed after each call to yield! */&lt;br/&gt;
        NamespaceDetails *d = nsdetails(ns); // can be null if an upsert...&lt;br/&gt;
        NamespaceDetailsTransient *nsdt = &amp;amp;NamespaceDetailsTransient::get_w(ns);&lt;br/&gt;
        /* end note */&lt;/p&gt;

&lt;p&gt;If we yield and if, for example, somebody calls NamespaceDetailsTransient::clearForPrefix() on a collection with a name that is a prefix of our collection&apos;s name, I think nsdt can point to freed memory even though we recover successfully from the yield.&lt;/p&gt;</description>
                <environment></environment>
        <key id="17961">SERVER-3208</key>
            <summary>unsafe usage of namespace details transient on yield in update.cpp</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="aaron">Aaron Staple</assignee>
                                    <reporter username="aaron">Aaron Staple</reporter>
                        <labels>
                    </labels>
                <created>Mon, 6 Jun 2011 18:21:46 +0000</created>
                <updated>Thu, 25 Jan 2018 19:41:08 +0000</updated>
                            <resolved>Mon, 1 Aug 2011 17:16:06 +0000</resolved>
                                    <version>1.8.1</version>
                                    <fixVersion>1.9.2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="45490" author="auto" created="Sun, 31 Jul 2011 17:28:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;astaple&apos;, u&apos;name&apos;: u&apos;Aaron&apos;, u&apos;email&apos;: u&apos;aaron@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3208&quot; title=&quot;unsafe usage of namespace details transient on yield in update.cpp&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3208&quot;&gt;&lt;del&gt;SERVER-3208&lt;/del&gt;&lt;/a&gt; refresh cached namespace pointers on update yield&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/789bd622ae3e5199a5a9f8dde7bd1c2882d3b8e9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/789bd622ae3e5199a5a9f8dde7bd1c2882d3b8e9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="45488" author="auto" created="Sun, 31 Jul 2011 17:28:12 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;astaple&apos;, u&apos;name&apos;: u&apos;Aaron&apos;, u&apos;email&apos;: u&apos;aaron@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3208&quot; title=&quot;unsafe usage of namespace details transient on yield in update.cpp&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3208&quot;&gt;&lt;del&gt;SERVER-3208&lt;/del&gt;&lt;/a&gt; test&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a30a6a05fa0b94a89acc994cf2895c227e76f645&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a30a6a05fa0b94a89acc994cf2895c227e76f645&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="487455">SERVER-32905</issuekey>
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