{"id":17335,"date":"2026-09-05T02:31:00","date_gmt":"2026-09-04T18:31:00","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80831"},"modified":"2026-09-05T02:31:00","modified_gmt":"2026-09-04T18:31:00","slug":"cve-2026-80831","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80831","title":{"rendered":"CVE-2026-80831 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: mxs-dcp &#8211; fix"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>crypto: mxs-dcp &#8211; fix source scatterlist length access<\/p>\n<p>mxs_dcp_aes_block_crypt() uses sg_dma_len() without mapping the source<br \/>\nscatterlist with dma_map_sg() first. Therefore, sg_dma_len() is invalid<br \/>\nand could return zero or a stale DMA length, causing encryption and<br \/>\ndecryption to process the wrong number of bytes when<br \/>\nCONFIG_NEED_SG_DMA_LENGTH=y.<\/p>\n<p>Use the original scatterlist length instead.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>crypto: mxs-dcp &#8211; fix source scatterlist length access<\/p>\n<p>mxs_dcp_aes_block_crypt() uses sg_dma_len() without mapping the source<br \/>\nscat<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17335","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17335","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=17335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}