{"id":18352,"date":"2026-09-09T00:30:42","date_gmt":"2026-09-08T16:30:42","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-79603"},"modified":"2026-09-09T00:30:42","modified_gmt":"2026-09-08T16:30:42","slug":"cve-2026-79603","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-79603","title":{"rendered":"CVE-2026-79603 [MEDIUM] &#8211; x86 PV guests can free memory pages while still keeping a stale TLB entry\npointing to them"},"content":{"rendered":"<p>x86 PV guests can free memory pages while still keeping a stale TLB entry<br \/>\npointing to them.  A TLB flush is only issued by Xen (if needed) when the<br \/>\npage is re-used.  Since it&#8217;s possible for the page to be scrubbed ahead of<br \/>\nthe TLB flush, there&#8217;s a window where a PV guest can modify an already<br \/>\nscrubbed page.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>x86 PV guests can free memory pages while still keeping a stale TLB entry<br \/>\npointing to them.  A TLB flush is only issued by Xen (if needed) when the<br \/>\npage is re-used.  Since it&#8217;s possible for the page t<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-18352","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/18352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}