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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-49947] Catalog Cache async task accesses un-owned StringData variable</title>
                <link>https://jira.mongodb.org/browse/SERVER-49947</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Cache loader access un-owned variable causing use-after-free memory access error.&lt;br/&gt;
 These are the two different places that implement this wrong pattern:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/21a3ee6079eb3cc83a5210cf53d98840cbc83a20/src/mongo/db/s/shard_server_catalog_cache_loader.cpp#L459&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ShardServerCatalogCacheLoader::getDatabase&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/21a3ee6079eb3cc83a5210cf53d98840cbc83a20/src/mongo/s/catalog_cache.cpp#L663&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;CatalogCache::getDatabase&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;StringData object wraps a &apos;const std::string&amp;amp;&apos; or a &apos;const char*&apos; without copying its contents. Thus keeping alive the StringData object itself doesn&apos;t guarantee that the underlying char array won&apos;t be freed. For this reason when capturing such an object in an async task an explicit copy of the underlying data needs to be performed.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1422939">SERVER-49947</key>
            <summary>Catalog Cache async task accesses un-owned StringData variable</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="tommaso.tocci@mongodb.com">Tommaso Tocci</assignee>
                                    <reporter username="tommaso.tocci@mongodb.com">Tommaso Tocci</reporter>
                        <labels>
                            <label>PM-1645-Milestone-2</label>
                    </labels>
                <created>Tue, 28 Jul 2020 14:01:12 +0000</created>
                <updated>Sun, 29 Oct 2023 22:05:06 +0000</updated>
                            <resolved>Wed, 29 Jul 2020 09:06:16 +0000</resolved>
                                    <version>4.5.1</version>
                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3311373" author="xgen-internal-githook" created="Wed, 29 Jul 2020 08:53:22 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Tommaso Tocci&apos;, &apos;email&apos;: &apos;tommaso.tocci@mongodb.com&apos;, &apos;username&apos;: &apos;toto-dev&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49947&quot; title=&quot;Catalog Cache async task accesses un-owned StringData variable&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49947&quot;&gt;&lt;del&gt;SERVER-49947&lt;/del&gt;&lt;/a&gt; Catalog Cache async task accesses un-owned StringData variable&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9950c7db67a7034e700a33c983e991914ecafd3d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9950c7db67a7034e700a33c983e991914ecafd3d&lt;/a&gt;&lt;/p&gt;</comment>
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