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    <lastBuildDate>Mon, 28 Sep 2026 16:15:12 +0000</lastBuildDate>
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      <title>CVE-2024-41086 — bcachefs: Fix sb_field_downgrade validation</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-41086</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;bcachefs: Fix sb_field_downgrade validation&lt;/p&gt;
&lt;p&gt;- bch2_sb_downgrade_validate() wasn&amp;#39;t checking for a downgrade entry
  extending past the end of the superblock section&lt;/p&gt;
&lt;p&gt;- for_each_downgrade_entry() is used in to_text() and needs to work on
  malformed input; it also was missing a check for a field extending
  past the end of the section&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;bcachefs: Fix sb_field_downgrade validation&lt;/p&gt;
&lt;p&gt;- bch2_sb_downgrade_validate() wasn&amp;#39;t checking for a downgrade entry
  extending past the end of the superblock section&lt;/p&gt;
&lt;p&gt;- for_each_downgrade_entry() is used in to_text() and needs to work on
  malformed input; it also was missing a check for a field extending
  past the end of the section&lt;/p&gt;</content:encoded>
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