{"id":28623,"date":"2026-09-25T04:31:29","date_gmt":"2026-09-24T20:31:29","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93808"},"modified":"2026-09-25T04:31:29","modified_gmt":"2026-09-24T20:31:29","slug":"cve-2026-93808","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93808","title":{"rendered":"CVE-2026-93808 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: caia"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ALSA: usb-audio: caiaq: validate EP1 reply lengths<\/p>\n<p>usb_ep1_command_reply_dispatch() uses buf[0] as a command byte and then<br \/>\nreads command-specific fixed items from the same URB buffer. Several<br \/>\npaths use buf + 1, buf[1], buf[2], or buf + 3 without first proving that<br \/>\nurb-&gt;actual_length contains those bytes.<\/p>\n<p>Add per-command length checks, use a payload length derived from the<br \/>\nbytes after the command byte for the control-state copy, and reject short<br \/>\nanalog input payloads before the input helper reads fixed offsets from<br \/>\nthe EP1 reply.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ALSA: usb-audio: caiaq: validate EP1 reply lengths<\/p>\n<p>usb_ep1_command_reply_dispatch() uses buf[0] as a command byte and then<br \/>\nreads c<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28623","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28623","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=28623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}