{"id":"CVE-2026-97568","published":"2026-09-25T11:17:07.453","lastModified":"2026-09-25T11:17:07.453","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: syncookies: remember the request backup flag\n\nInstead of using an uninitialised bit when copying the info in\nsubflow_ulp_clone().\n\nTo fix this, no need to extend the join_entry structure: backup is\ncoming from struct mptcp_subflow_request_sock, only one bit. Do the same\nhere by using one bit for both.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/00b2bd518911e0daab00f4749cce68c191ccebb4","tags":[]},{"url":"https://git.kernel.org/stable/c/06d649f9cd03a9f8e768a658b20acf8d2c8022e0","tags":[]},{"url":"https://git.kernel.org/stable/c/61178d0b85b4b1b53e78b06e89d018d22d102f88","tags":[]},{"url":"https://git.kernel.org/stable/c/b76c0e28b392620dfbaf92cdeedbf115820b44cb","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}