{"id":"CVE-2025-40133","summary":"mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().\n\nmptcp_active_enable() is called from subflow_finish_connect(),\nwhich is icsk-\u003eicsk_af_ops-\u003esk_rx_dst_set() and it's not always\nunder RCU.\n\nUsing sk_dst_get(sk)-\u003edev could trigger UAF.\n\nLet's use __sk_dst_get() and dst_dev_rcu().","modified":"2026-04-02T12:46:39.905546Z","published":"2025-11-12T10:23:22.498Z","related":["ALSA-2026:2282","SUSE-SU-2026:20012-1","SUSE-SU-2026:20015-1","SUSE-SU-2026:20021-1","openSUSE-SU-2025:20172-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40133.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/893c49a78d9f85e4b8081b908fb7c407d018106a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad16235c9d3ef7ec17c109ff39b7504f49d17072"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc976ec9e38bb79409de3261ba1dbb6868e2a53e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40133.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40133"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"27069e7cb3d1cea9377069266acf19b9cc5ad0ae"},{"fixed":"ad16235c9d3ef7ec17c109ff39b7504f49d17072"},{"fixed":"cc976ec9e38bb79409de3261ba1dbb6868e2a53e"},{"fixed":"893c49a78d9f85e4b8081b908fb7c407d018106a"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40133.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.12.0"},{"fixed":"6.12.55"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.17.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40133.json"}}],"schema_version":"1.7.5"}