{"id":24569,"date":"2026-09-16T20:32:29","date_gmt":"2026-09-16T12:32:29","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89882"},"modified":"2026-09-16T20:32:29","modified_gmt":"2026-09-16T12:32:29","slug":"cve-2026-89882","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89882","title":{"rendered":"CVE-2026-89882 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: rkvdec: hevc:"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>media: rkvdec: hevc: guard INTER_REF_PIC_SET_PRED index underflow<\/p>\n<p>st_ref_pic_set_prediction() computes the reference RPS index as<br \/>\nst_rps_idx &#8211; (delta_idx_minus1 + 1) per HEVC spec equation 7-59.<br \/>\nBoth operands are u8, so when delta_idx_minus1 + 1 exceeds the<br \/>\ncurrent index the subtraction wraps and the subsequent array access<br \/>\nat calculated_rps_st_sets[ref_rps_idx] reads far out of bounds.<\/p>\n<p>A userspace V4L2 client that can open the RKVDEC m2m decoder can<br \/>\nsubmit an EXT_SPS_ST_RPS control with INTER_REF_PIC_SET_PRED set<br \/>\nand delta_idx_minus1 crafted to trigger the underflow.<\/p>\n<p>Reject the entry early when the reference index would underflow.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>media: rkvdec: hevc: guard INTER_REF_PIC_SET_PRED index underflow<\/p>\n<p>st_ref_pic_set_prediction() computes the reference RPS index as<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24569","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24569","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=24569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}