{"id":25600,"date":"2026-09-18T04:31:37","date_gmt":"2026-09-17T20:31:37","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90191"},"modified":"2026-09-18T04:31:37","modified_gmt":"2026-09-17T20:31:37","slug":"cve-2026-90191","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90191","title":{"rendered":"CVE-2026-90191 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: riscv-sbi-mp"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>mailbox: riscv-sbi-mpxy: validate RPMI notification lengths<\/p>\n<p>The SBI return value controls how many bytes are copied from shared<br \/>\nmemory into the RPMI notification buffer. It is not validated against<br \/>\nthe negotiated shared-memory size before that copy. The event walker<br \/>\nalso uses a reversed loop condition and can inspect a short event record.<\/p>\n<p>Validate the complete notification length before copying it, iterate only<br \/>\nwhile a full event header remains, and stop when a declared event payload<br \/>\nextends beyond the copied notification data.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>mailbox: riscv-sbi-mpxy: validate RPMI notification lengths<\/p>\n<p>The SBI return value controls how many bytes are copied from shared<br \/>\nme<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25600","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25600","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=25600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}