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    <title>Most recent entries from all</title>
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    <lastBuildDate>Wed, 30 Sep 2026 23:32:54 +0000</lastBuildDate>
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      <title>CVE-2026-90418 — nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-90418</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;nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch&lt;/p&gt;
&lt;p&gt;Syzbot reported a kernel BUG triggered within nilfs_copy_dirty_pages(),
which copies dirty DAT file folios/pages to its shadow page cache.  The
BUG occurs when a retrieved dirty folio/page unexpectedly loses its
&amp;#39;dirty&amp;#39; status.&lt;/p&gt;
&lt;p&gt;This issue arises because, since the commit referenced below, the &amp;#39;dirty&amp;#39;
flag of a folio/page can be cleared asynchronously after the filesystem
detects metadata corruption and transitions to read-only mode.&lt;/p&gt;
&lt;p&gt;Resolve the issue by returning an -EROFS error if the filesystem has
transitioned to read-only mode.  Also change the behavior to issue a
kernel warning only once instead of triggering a kernel BUG when this
unexpected &amp;#39;dirty&amp;#39; state is detected while the filesystem is not in
read-only mode.&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;nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch&lt;/p&gt;
&lt;p&gt;Syzbot reported a kernel BUG triggered within nilfs_copy_dirty_pages(),
which copies dirty DAT file folios/pages to its shadow page cache.  The
BUG occurs when a retrieved dirty folio/page unexpectedly loses its
&amp;#39;dirty&amp;#39; status.&lt;/p&gt;
&lt;p&gt;This issue arises because, since the commit referenced below, the &amp;#39;dirty&amp;#39;
flag of a folio/page can be cleared asynchronously after the filesystem
detects metadata corruption and transitions to read-only mode.&lt;/p&gt;
&lt;p&gt;Resolve the issue by returning an -EROFS error if the filesystem has
transitioned to read-only mode.  Also change the behavior to issue a
kernel warning only once instead of triggering a kernel BUG when this
unexpected &amp;#39;dirty&amp;#39; state is detected while the filesystem is not in
read-only mode.&lt;/p&gt;</content:encoded>
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