https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 07:58:40 +0000 https://vulnerability.circl.lu/vuln/cve-2026-80685 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>mm/util: don&#39;t read __page_2 for order-1 folios in snapshot_page()</p> <p>snapshot_page() currently reads __page_2 after checking nr_pages &gt; 1, but it should only do so when nr_pages &gt; 2.</p> <p>If an order-1 folio is allocated at the end of a vmemmap section, __page_2 will not exist and reading it will cause a fault.</p> <p>During DLPAR memory remove on a 22 TB ppc64le LPAR, snapshot_page() oopsed on the page isolation path while reading an order-1 folio&#39;s __page_2 from an adjacent absent section (unmapped vmemmap).</p> <p>Fix this to avoid reading memmap that doesn&#39;t exist (e.g., a vmemmap hole).</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>mm/util: don&#39;t read __page_2 for order-1 folios in snapshot_page()</p> <p>snapshot_page() currently reads __page_2 after checking nr_pages &gt; 1, but it should only do so when nr_pages &gt; 2.</p> <p>If an order-1 folio is allocated at the end of a vmemmap section, __page_2 will not exist and reading it will cause a fault.</p> <p>During DLPAR memory remove on a 22 TB ppc64le LPAR, snapshot_page() oopsed on the page isolation path while reading an order-1 folio&#39;s __page_2 from an adjacent absent section (unmapped vmemmap).</p> <p>Fix this to avoid reading memmap that doesn&#39;t exist (e.g., a vmemmap hole).</p> https://vulnerability.circl.lu/vuln/cve-2026-80685