{"id":8804,"date":"2026-09-04T18:50:05","date_gmt":"2026-09-04T10:50:05","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74521-2"},"modified":"2026-09-04T18:50:05","modified_gmt":"2026-09-04T10:50:05","slug":"cve-2026-74521-2","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74521-2","title":{"rendered":"CVE-2026-74521 [CRITICAL] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: use memcmp() t"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ksmbd: use memcmp() to compare ClientGUIDs<\/p>\n<p>ClientGUID is a fixed-size binary value and can contain embedded NUL<br \/>\nbytes. strncmp() stops comparing at the first NUL byte, so different<br \/>\nClientGUID values can incorrectly be treated as equal.<\/p>\n<p>Use memcmp() in SMB3 multichannel session binding and<br \/>\nFSCTL_VALIDATE_NEGOTIATE_INFO to compare all SMB2_CLIENT_GUID_SIZE<br \/>\nbytes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ksmbd: use memcmp() to compare ClientGUIDs<\/p>\n<p>ClientGUID is a fixed-size binary value and can contain embedded NUL<br \/>\nbytes. strncmp() s<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-8804","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/8804","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=8804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}