{"id":6085,"date":"2026-09-04T18:48:19","date_gmt":"2026-09-04T10:48:19","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68447"},"modified":"2026-09-04T18:48:19","modified_gmt":"2026-09-04T10:48:19","slug":"cve-2026-68447","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-68447","title":{"rendered":"CVE-2026-68447 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/amdkfd: clamp v9"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size<\/p>\n<p>CRIU checkpoint copies the MQD control stack using cp_hqd_cntl_stack_size<br \/>\nfrom hardware without bounding it to the allocated BO region. If the HW<br \/>\nfield is larger than the queue&#8217;s control stack allocation, memcpy reads<br \/>\npast the BO into adjacent GTT memory and can leak kernel data to userspace.<\/p>\n<p>Store the page-aligned control stack BO size in mqd_manager and clamp<br \/>\ncheckpoint copies and reported checkpoint sizes to<br \/>\nmin(cp_hqd_cntl_stack_size, mm-&gt;ctl_stack_size). Apply the same bound<br \/>\nfor multi-XCC v9.4.3 checkpoint layout.<\/p>\n<p>(cherry picked from commit 6c2abd0ec09e86c6323010673766f76050e28aa3)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size<\/p>\n<p>CRIU checkpoint copies the MQD control stack using cp_hqd_cntl_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6085","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6085","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=6085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6085"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}