{"id":24495,"date":"2026-09-16T20:32:23","date_gmt":"2026-09-16T12:32:23","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89808"},"modified":"2026-09-16T20:32:23","modified_gmt":"2026-09-16T12:32:23","slug":"cve-2026-89808","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89808","title":{"rendered":"CVE-2026-89808 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/amdkfd: Fix the c"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram<\/p>\n<p>When migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set +<br \/>\nMIGRATE_PFN_VALID unset) driver still allocates device pages. There is no<br \/>\ndma map of src pages and migration. j is 0 and svm_migrate_copy_memory_gart()<br \/>\nwill return an uninitialized r. That can trigger out_free_vram_pages to drop<br \/>\nall VRAM just set up.<\/p>\n<p>Initialize r and only call the last svm_migrate_copy_memory_gart if j &gt; 0.<\/p>\n<p>Current code postponed the last page to the final copy. This patch flushes on<br \/>\nthe last page when reach to the end of current drm_buddy_block; avoids another<br \/>\nsvm_migrate_copy_memory_gart.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram<\/p>\n<p>When migration vm range is hole at cpu side(MIGRATE_PFN<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24495","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24495","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=24495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}