{"id":6816,"date":"2026-09-04T18:49:18","date_gmt":"2026-09-04T10:49:18","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-72172"},"modified":"2026-09-04T18:49:18","modified_gmt":"2026-09-04T10:49:18","slug":"cve-2026-72172","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-72172","title":{"rendered":"CVE-2026-72172 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nmm\/mm_init: fix unini"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>mm\/mm_init: fix uninitialized struct pages for ZONE_DEVICE<\/p>\n<p>If DAX memory is hotplugged into an unoccupied subsection of an early<br \/>\nsection, section_activate() reuses the unoptimized boot memmap.  However,<br \/>\ncompound_nr_pages() still assumes that vmemmap optimization is in effect<br \/>\nand initializes only the reduced number of struct pages.  As a result, the<br \/>\nremaining tail struct pages are left uninitialized, which can later lead<br \/>\nto unexpected behavior or crashes.<\/p>\n<p>Fix this by treating early sections as unoptimized when calculating how<br \/>\nmany struct pages to initialize.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>mm\/mm_init: fix uninitialized struct pages for ZONE_DEVICE<\/p>\n<p>If DAX memory is hotplugged into an unoccupied subsection of an early<br \/>\ns<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6816","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6816","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=6816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}