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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-83161] Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex</title>
                <link>https://jira.mongodb.org/browse/SERVER-83161</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;An unprotected &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c548badacf4fbd0254fd1fce6aff930abfcc9102/src/mongo/db/s/move_timing_helper.cpp#L95-L97&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;read access&lt;/a&gt; of the variable &lt;tt&gt;_errMsg&lt;/tt&gt; from MigrationDestinationManager at the destructor of MoveTimingHelper, can be concurrent with write accesses, e.g. &lt;tt&gt;MigrationDestinationManager::_setStateFail&lt;/tt&gt; or &lt;tt&gt;MigrationDestinationManager::_setStateFailWarn&lt;/tt&gt;.&#160;&lt;/p&gt;

&lt;p&gt;An implementation idea is to create a copy of the &lt;tt&gt;_errMsg&lt;/tt&gt; protected by the mutex when instantiating a MoveTimingHelper, and not passing an unprotected pointer.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2498102">SERVER-83161</key>
            <summary>Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex</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="aitor.esteve@mongodb.com">Aitor Esteve Alvarado</assignee>
                                    <reporter username="pol.pinol@mongodb.com">Pol Pinol</reporter>
                        <labels>
                    </labels>
                <created>Mon, 13 Nov 2023 12:19:48 +0000</created>
                <updated>Thu, 23 Nov 2023 10:30:21 +0000</updated>
                            <resolved>Wed, 22 Nov 2023 14:32:49 +0000</resolved>
                                    <version>4.4.25</version>
                    <version>5.0.22</version>
                    <version>6.0.11</version>
                    <version>7.0.3</version>
                    <version>7.2.0-rc1</version>
                                    <fixVersion>7.3.0-rc0</fixVersion>
                    <fixVersion>7.2.0-rc2</fixVersion>
                    <fixVersion>4.4.27</fixVersion>
                    <fixVersion>7.0.5</fixVersion>
                    <fixVersion>6.0.13</fixVersion>
                    <fixVersion>5.0.24</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5901077" author="xgen-internal-githook" created="Thu, 23 Nov 2023 10:25:12 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Aitor Esteve Alvarado&apos;, &apos;email&apos;: &apos;aitor.esteve@mongodb.com&apos;, &apos;username&apos;: &apos;atesteve&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83161&quot; title=&quot;Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83161&quot;&gt;&lt;del&gt;SERVER-83161&lt;/del&gt;&lt;/a&gt; Fix concurrent read to _errMsg from MigrationDestinationManager without acquiring mutex&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a082c2a1393c160d277d62683898ed9fe6dd13fc)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 39f44bf5d9a88883b0d099e5f3fc98df0d5b1a1f&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/da389fd125f37bbfeea3f64f708b79915a858271&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/da389fd125f37bbfeea3f64f708b79915a858271&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5901003" author="xgen-internal-githook" created="Thu, 23 Nov 2023 09:19:05 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Aitor Esteve Alvarado&apos;, &apos;email&apos;: &apos;aitor.esteve@mongodb.com&apos;, &apos;username&apos;: &apos;atesteve&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83161&quot; title=&quot;Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83161&quot;&gt;&lt;del&gt;SERVER-83161&lt;/del&gt;&lt;/a&gt; Fix concurrent read to _errMsg from MigrationDestinationManager without acquiring mutex&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a082c2a1393c160d277d62683898ed9fe6dd13fc)&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/20d085bec46c7af3c08d5879adc04cd65fcd6c38&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/20d085bec46c7af3c08d5879adc04cd65fcd6c38&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5900998" author="xgen-internal-githook" created="Thu, 23 Nov 2023 09:14:08 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Aitor Esteve Alvarado&apos;, &apos;email&apos;: &apos;aitor.esteve@mongodb.com&apos;, &apos;username&apos;: &apos;atesteve&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83161&quot; title=&quot;Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83161&quot;&gt;&lt;del&gt;SERVER-83161&lt;/del&gt;&lt;/a&gt; Fix concurrent read to _errMsg from MigrationDestinationManager without acquiring mutex&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a082c2a1393c160d277d62683898ed9fe6dd13fc)&lt;br/&gt;
Branch: v7.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/95cd26aa074d5ec0092e9efd55a3386cad325ee6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/95cd26aa074d5ec0092e9efd55a3386cad325ee6&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5900980" author="xgen-internal-githook" created="Thu, 23 Nov 2023 09:07:07 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Aitor Esteve Alvarado&apos;, &apos;email&apos;: &apos;aitor.esteve@mongodb.com&apos;, &apos;username&apos;: &apos;atesteve&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83161&quot; title=&quot;Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83161&quot;&gt;&lt;del&gt;SERVER-83161&lt;/del&gt;&lt;/a&gt; Fix concurrent read to _errMsg from MigrationDestinationManager without acquiring mutex&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a082c2a1393c160d277d62683898ed9fe6dd13fc)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a8412612c928f52229df48b272dbee9b89fab090&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a8412612c928f52229df48b272dbee9b89fab090&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5898819" author="xgen-internal-githook" created="Wed, 22 Nov 2023 15:18:05 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Aitor Esteve Alvarado&apos;, &apos;email&apos;: &apos;aitor.esteve@mongodb.com&apos;, &apos;username&apos;: &apos;atesteve&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83161&quot; title=&quot;Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83161&quot;&gt;&lt;del&gt;SERVER-83161&lt;/del&gt;&lt;/a&gt; Fix concurrent read to _errMsg from MigrationDestinationManager without acquiring mutex&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a082c2a1393c160d277d62683898ed9fe6dd13fc)&lt;br/&gt;
Branch: v7.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6d12bf7945ce5e49457799c8b68f40e0321efa17&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6d12bf7945ce5e49457799c8b68f40e0321efa17&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5898545" author="xgen-internal-githook" created="Wed, 22 Nov 2023 13:37:43 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Aitor Esteve Alvarado&apos;, &apos;email&apos;: &apos;aitor.esteve@mongodb.com&apos;, &apos;username&apos;: &apos;atesteve&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-83161&quot; title=&quot;Fix concurrent read to `_errMsg` from `MigrationDestinationManager` without acquiring mutex&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-83161&quot;&gt;&lt;del&gt;SERVER-83161&lt;/del&gt;&lt;/a&gt; Fix concurrent read to _errMsg from MigrationDestinationManager without acquiring mutex&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a082c2a1393c160d277d62683898ed9fe6dd13fc&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a082c2a1393c160d277d62683898ed9fe6dd13fc&lt;/a&gt;&lt;/p&gt;</comment>
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