{"id":24513,"date":"2026-09-16T20:32:25","date_gmt":"2026-09-16T12:32:25","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89826"},"modified":"2026-09-16T20:32:25","modified_gmt":"2026-09-16T12:32:25","slug":"cve-2026-89826","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89826","title":{"rendered":"CVE-2026-89826 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/panthor: harden f"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/panthor: harden firmware build-info bounds checks<\/p>\n<p>panthor_fw_read_build_info() checks whether the metadata range fits in the<br \/>\nfirmware image with hdr.meta_start + hdr.meta_size. Both fields are u32, so<br \/>\nthe addition can wrap and let an out-of-bounds range pass validation.<\/p>\n<p>The function also reads the &#8220;git_sha: &#8221; prefix without first checking that<br \/>\nthe metadata is long enough, and meta_size == 0 can underflow the NULL<br \/>\nterminator index.<\/p>\n<p>Use subtraction-based bounds checking and reject metadata that is too short<br \/>\nto contain the expected prefix and trailing NULL byte.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/panthor: harden firmware build-info bounds checks<\/p>\n<p>panthor_fw_read_build_info() checks whether the metadata range fits in the<br \/>\nf<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24513","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24513","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=24513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}