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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[MONGOCRYPT-343] Audit integer narrowing conversions</title>
                <link>https://jira.mongodb.org/browse/MONGOCRYPT-343</link>
                <project id="17481" key="MONGOCRYPT">Libmongocrypt</project>
                    <description>&lt;p&gt;&lt;b&gt;Background&lt;/b&gt;&lt;br/&gt;
There are several examples of casts between integral types of mismatched sizes.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/libmongocrypt/blob/4cdff547d052e4d4f24a608c937e3750e8b67cde/src/mongocrypt-kms-ctx.c#L988:L988&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Here is an example&lt;/a&gt;:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&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;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;  margin-top: 10px;   margin-bottom: 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;   kms-&amp;gt;msg.len = (uint32_t) strlen (request_string);&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;p/&gt;

&lt;p&gt;This casts the &lt;tt&gt;size_t&lt;/tt&gt; returned by &lt;tt&gt;strlen&lt;/tt&gt; into a &lt;tt&gt;uint32_t&lt;/tt&gt;. The size of &lt;tt&gt;size_t&lt;/tt&gt; is platform dependent.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Scope&lt;/b&gt;&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Check for all cases of integer conversions that may result in narrowing or undefined behavior.&lt;/li&gt;
	&lt;li&gt;Return an error when possible in cases where the cast would result in unexpected overflow.&lt;/li&gt;
	&lt;li&gt;Investigate whether narrowing conversions can cause an error in Evergreen builds to prevent future regressions.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1895349">MONGOCRYPT-343</key>
            <summary>Audit integer narrowing conversions</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="kevin.albertson@mongodb.com">Kevin Albertson</reporter>
                        <labels>
                    </labels>
                <created>Mon, 11 Oct 2021 18:58:45 +0000</created>
                <updated>Wed, 30 Mar 2022 21:21:21 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>1</watches>
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