{"id":24723,"date":"2026-09-16T20:32:41","date_gmt":"2026-09-16T12:32:41","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90035"},"modified":"2026-09-16T20:32:41","modified_gmt":"2026-09-16T12:32:41","slug":"cve-2026-90035","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90035","title":{"rendered":"CVE-2026-90035 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/amd\/display: fix"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amd\/display: fix division by zero in get_estimated_bw()<\/p>\n<p>get_estimated_bw() divides by link-&gt;dpia_bw_alloc_config.bw_granularity,<br \/>\nwhich is zeroed by reset_bw_alloc_struct() and only populated once<br \/>\nDP_TUNNELING_BW_ALLOC_CAP_CHANGED has been handled.<\/p>\n<p>link_dp_dpia_handle_bw_alloc_status(), the DPCD interrupt handler,<br \/>\ncalls get_estimated_bw() whenever DP_TUNNELING_ESTIMATED_BW_CHANGED<br \/>\nis set, independently of whether DP_TUNNELING_BW_ALLOC_CAP_CHANGED<br \/>\nhas ever fired for that link. A connected USB4\/DPIA tunneling device<br \/>\nthat reports an estimated-bandwidth change before ever reporting a<br \/>\ncapability change drives a division by zero in this IRQ path.<\/p>\n<p>link_dpia_send_bw_alloc_request() already guards the same<br \/>\nbw_granularity division; add the identical guard here rather than<br \/>\nintroducing a new pattern.<\/p>\n<p>(cherry picked from commit f2a961457c33dc34223aad5c9e8971de34a4eed3)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amd\/display: fix division by zero in get_estimated_bw()<\/p>\n<p>get_estimated_bw() divides by link-&gt;dpia_bw_alloc_config.bw_granularit<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24723","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24723","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=24723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}