{"id":41083,"date":"2026-10-19T00:32:04","date_gmt":"2026-10-18T16:32:04","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98611"},"modified":"2026-10-19T00:32:04","modified_gmt":"2026-10-18T16:32:04","slug":"cve-2026-98611","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98611","title":{"rendered":"CVE-2026-98611 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check params siz"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Check params size before reading reserved fields<\/p>\n<p>bpf_crypto_ctx_create() is a kfunc whose second argument is declared<br \/>\nwith the __sz annotation, so the verifier only guarantees that<br \/>\nparams__sz bytes of params are valid.  The function nevertheless reads<br \/>\nparams-&gt;reserved[0] and params-&gt;reserved[1] (offsets 14 and 15) before<br \/>\ncomparing params__sz against the size of struct bpf_crypto_params, so a<br \/>\nBPF program can pass a shorter buffer and have the kernel read past the<br \/>\nregion that was validated for it.<\/p>\n<p>Move the size check in front of the reserved field reads.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Check params size before reading reserved fields<\/p>\n<p>bpf_crypto_ctx_create() is a kfunc whose second argument is declared<br \/>\nwith th<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41083","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41083","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=41083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}