{"id":25654,"date":"2026-09-18T04:31:41","date_gmt":"2026-09-17T20:31:41","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90245"},"modified":"2026-09-18T04:31:41","modified_gmt":"2026-09-17T20:31:41","slug":"cve-2026-90245","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90245","title":{"rendered":"CVE-2026-90245 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: kyro: Validate"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>fbdev: kyro: Validate overlay viewport coordinates<\/p>\n<p>The overlay viewport end coordinates are computed from the viewport<br \/>\norigin and dimensions using 32-bit unsigned arithmetic. Large input<br \/>\nvalues can cause these calculations to wrap around before the resulting<br \/>\ncoordinates are passed to SetOverlayViewPort().<\/p>\n<p>SetOverlayViewPort() packs the viewport coordinates into 16-bit<br \/>\nregister fields. The X coordinates are additionally adjusted by +2<br \/>\nand +1 before being written. Validate the coordinate calculations<br \/>\nfor 32-bit wraparound and ensure that the adjusted coordinates fit<br \/>\nwithin their 16-bit register fields before calling<br \/>\nSetOverlayViewPort().<\/p>\n<p>Found by Linux Verification Center (linuxtesting.org) with SVACE.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>fbdev: kyro: Validate overlay viewport coordinates<\/p>\n<p>The overlay viewport end coordinates are computed from the viewport<br \/>\norigin and <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25654","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25654","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=25654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}