{"id":25586,"date":"2026-09-18T04:31:35","date_gmt":"2026-09-17T20:31:35","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90177"},"modified":"2026-09-18T04:31:35","modified_gmt":"2026-09-17T20:31:35","slug":"cve-2026-90177","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90177","title":{"rendered":"CVE-2026-90177 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check pointer ty"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Check pointer type for all atomic RMW paths<\/p>\n<p>Atomic RMW verification records an instruction pointer type only when the<br \/>\ncurrent destination is PTR_TO_ARENA. A second path can therefore reach the<br \/>\nsame instruction with an ordinary pointer without comparing it against the<br \/>\nsaved arena type.<\/p>\n<p>The post-verification fixup uses the saved type to rewrite the instruction<br \/>\nto BPF_PROBE_ATOMIC for every path. Record the actual destination type for<br \/>\nall atomic RMW paths so the existing mismatch check rejects incompatible<br \/>\nuses of one instruction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Check pointer type for all atomic RMW paths<\/p>\n<p>Atomic RMW verification records an instruction pointer type only when the<br \/>\ncurrent<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25586","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25586","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=25586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}