{"id":68267,"date":"2025-08-16T18:31:43","date_gmt":"2025-08-16T15:01:43","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-38552-linux-kernel-mptcp-subflow-creation-race-condition-vulnerability\/"},"modified":"2025-08-16T18:31:43","modified_gmt":"2025-08-16T15:01:43","slug":"cve-2025-38552-linux-kernel-mptcp-subflow-creation-race-condition-vulnerability","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-38552-linux-kernel-mptcp-subflow-creation-race-condition-vulnerability\/","title":{"rendered":"CVE-2025-38552 &#8211; Linux Kernel MPTCP Subflow Creation Race Condition Vulnerability"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-38552<br \/>\n<br \/>\n<strong>Published : <\/strong> Aug. 16, 2025, 12:15 p.m. | 1\u00a0hour, 46\u00a0minutes ago<br \/>\n<br \/>\n<strong>Description : <\/strong>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>mptcp: plug races between subflow fail and subflow creation<\/p>\n<p>We have races similar to the one addressed by the previous patch between<br \/>\nsubflow failing and additional subflow creation. They are just harder to<br \/>\ntrigger.<\/p>\n<p>The solution is similar. Use a separate flag to track the condition<br \/>\n&#8216;socket state prevent any additional subflow creation&#8217; protected by the<br \/>\nfallback lock.<\/p>\n<p>The socket fallback makes such flag true, and also receiving or sending<br \/>\nan MP_FAIL option.<\/p>\n<p>The field &#8216;allow_infinite_fallback&#8217; is now always touched under the<br \/>\nrelevant lock, we can drop the ONCE annotation on write.<br \/>\n<br \/>\n<strong>Severity:<\/strong> 0.0 | NA<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-38552 Published : Aug. 16, 2025, 12:15 p.m. | 1\u00a0hour, 46\u00a0minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: mptcp: plug races between subflow fail and subflow creation We have races similar to the one addressed by the previous patch between subflow failing and additional subflow creation. &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-68267","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/68267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=68267"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/68267\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=68267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=68267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=68267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}