{"id":28956,"date":"2026-09-25T20:31:36","date_gmt":"2026-09-25T12:31:36","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97524"},"modified":"2026-09-25T20:31:36","modified_gmt":"2026-09-25T12:31:36","slug":"cve-2026-97524","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97524","title":{"rendered":"CVE-2026-97524 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: avoid unneeded"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>mptcp: avoid unneeded actions on subflow reset<\/p>\n<p>Once in a blue moon, the mptcp receive path can recursively call<br \/>\nmptcp_data_ready() via state change under unlucky error conditions, and<br \/>\nthen try to hold the data lock again.<\/p>\n<p>Break the recursion loop explicitly checking for the exceptional<br \/>\ncondition.<\/p>\n<p>Add a new flag instead of using an existing one like &#8216;closing&#8217;, to exit<br \/>\nearly in subflow_state_change(), and explicitly flush the RX queue at<br \/>\nreset time.<\/p>\n<p>This avoids unneeded processing to check for available data &#8212; calling<br \/>\nget_mapping_status() and more on a dying subflow &#8212; but also in error<br \/>\nreporting and worker scheduling.<\/p>\n<p>Note that we must consume the currently peeked skb before invoking<br \/>\nmptcp_dss_corruption to avoid consuming it again after the eventual<br \/>\nreset has freed it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>mptcp: avoid unneeded actions on subflow reset<\/p>\n<p>Once in a blue moon, the mptcp receive path can recursively call<br \/>\nmptcp_data_ready()<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28956","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28956","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=28956"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28956"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28956"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}