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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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      <title>CVE-2024-50081 — blk-mq: setup queue -&gt;tag_set before initializing hctx</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-50081</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;blk-mq: setup queue -&amp;gt;tag_set before initializing hctx&lt;/p&gt;
&lt;p&gt;Commit 7b815817aa58 (&amp;#34;blk-mq: add helper for checking if one CPU is mapped to specified hctx&amp;#34;)
needs to check queue mapping via tag set in hctx&amp;#39;s cpuhp handler.&lt;/p&gt;
&lt;p&gt;However, q-&amp;gt;tag_set may not be setup yet when the cpuhp handler is
enabled, then kernel oops is triggered.&lt;/p&gt;
&lt;p&gt;Fix the issue by setup queue tag_set before initializing hctx.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;blk-mq: setup queue -&amp;gt;tag_set before initializing hctx&lt;/p&gt;
&lt;p&gt;Commit 7b815817aa58 (&amp;#34;blk-mq: add helper for checking if one CPU is mapped to specified hctx&amp;#34;)
needs to check queue mapping via tag set in hctx&amp;#39;s cpuhp handler.&lt;/p&gt;
&lt;p&gt;However, q-&amp;gt;tag_set may not be setup yet when the cpuhp handler is
enabled, then kernel oops is triggered.&lt;/p&gt;
&lt;p&gt;Fix the issue by setup queue tag_set before initializing hctx.&lt;/p&gt;</content:encoded>
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