{"id":28587,"date":"2026-09-25T04:31:26","date_gmt":"2026-09-24T20:31:26","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93284"},"modified":"2026-09-25T04:31:26","modified_gmt":"2026-09-24T20:31:26","slug":"cve-2026-93284","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93284","title":{"rendered":"CVE-2026-93284 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/pagemap: dma-unma"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/pagemap: dma-unmap pages before handling migration errors<\/p>\n<p>drm_pagemap_migrate_unmap_pages() relies on the pages array to determine<br \/>\nwhich pages require DMA unmapping. However,<br \/>\ndrm_pagemap_migration_unlock_put_pages() clears the array as part of its<br \/>\ncleanup, leaving drm_pagemap_migrate_unmap_pages() with no valid page<br \/>\ninformation if it is called afterward.<\/p>\n<p>Call drm_pagemap_migrate_unmap_pages() before<br \/>\ndrm_pagemap_migration_unlock_put_pages() so the pages array remains<br \/>\nvalid during DMA unmapping.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/pagemap: dma-unmap pages before handling migration errors<\/p>\n<p>drm_pagemap_migrate_unmap_pages() relies on the pages array to deter<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28587","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28587","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=28587"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28587"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}