{"id":3401,"date":"2026-09-04T04:59:41","date_gmt":"2026-09-03T20:59:41","guid":{"rendered":"https:\/\/www.54iter.cn\/?p=3401"},"modified":"2026-09-04T04:59:41","modified_gmt":"2026-09-03T20:59:41","slug":"cve-2026-80749","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80749","title":{"rendered":"CVE-2026-80749 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/connector\/hdmi: F"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/connector\/hdmi: Fix out of bounds memory read<\/p>\n<p>A helper function was copying a given audio infoframe into the<br \/>\nconnector&#8217;s copy but using the size of the destination (a generic<br \/>\ntarget, sized to accept many different data blocks) not the source (a<br \/>\nvery specific type of data block). Thus, it was copying 60 bytes of<br \/>\ndata from a 28 byte allocation.<\/p>\n<p>Fix that by using the source size instead, together with a build bug<br \/>\non the source size actually being smaller than the destination.<\/p>\n<p>I hit this running KUnit tests under KASAN (while debugging something<br \/>\nelse entirely). In the real world, it seems unlikely to cause an<br \/>\nactual problem. It is a read not a write so it can&#8217;t corrupt any<br \/>\nmemory. However, it could potentially fall off the end of a page and<br \/>\ncause an accvio bug.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/connector\/hdmi: Fix out of bounds memory read<\/p>\n<p>A helper function was copying a given audio infoframe into the<br \/>\nconnector&#8217;s copy <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-3401","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/3401","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=3401"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3401"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3401"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}