{"id":41054,"date":"2026-10-19T00:31:57","date_gmt":"2026-10-18T16:31:57","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98582"},"modified":"2026-10-19T00:31:57","modified_gmt":"2026-10-18T16:31:57","slug":"cve-2026-98582","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98582","title":{"rendered":"CVE-2026-98582 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: st21nfca: valida"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>nfc: st21nfca: validate received frame size<\/p>\n<p>st21nfca_hci_i2c_repack() trims a received frame at its EOF marker<br \/>\nbefore removing byte stuffing.  It then assumes the truncated frame<br \/>\ncontains the LLC header and two CRC bytes, and it unconditionally reads<br \/>\nthe byte after an escape marker.<\/p>\n<p>A malformed frame can place EOF immediately after the start marker or can<br \/>\nend its data portion with an escape marker.  The former leaves too few<br \/>\nbytes for check_crc(), while the latter makes the unstuffing loop read past<br \/>\nthe current skb length.<\/p>\n<p>Require the minimum framing bytes both before and after unstuffing.  Use<br \/>\nseparate input and output cursors while removing byte stuffing, and reject<br \/>\nan escape marker without its encoded byte.  This keeps malformed frames<br \/>\nwithin the received frame boundary before CRC processing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>nfc: st21nfca: validate received frame size<\/p>\n<p>st21nfca_hci_i2c_repack() trims a received frame at its EOF marker<br \/>\nbefore removing byt<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41054","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41054","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=41054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}