{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40133","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.170Z","datePublished":"2025-11-12T10:23:22.498Z","dateUpdated":"2026-05-11T21:43:23.417Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:43:23.417Z"},"descriptions":[{"lang":"en","value":"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->icsk_af_ops->sk_rx_dst_set() and it's not always\nunder RCU.\n\nUsing sk_dst_get(sk)->dev could trigger UAF.\n\nLet's use __sk_dst_get() and dst_dev_rcu()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mptcp/ctrl.c"],"versions":[{"version":"27069e7cb3d1cea9377069266acf19b9cc5ad0ae","lessThan":"ad16235c9d3ef7ec17c109ff39b7504f49d17072","status":"affected","versionType":"git"},{"version":"27069e7cb3d1cea9377069266acf19b9cc5ad0ae","lessThan":"cc976ec9e38bb79409de3261ba1dbb6868e2a53e","status":"affected","versionType":"git"},{"version":"27069e7cb3d1cea9377069266acf19b9cc5ad0ae","lessThan":"893c49a78d9f85e4b8081b908fb7c407d018106a","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mptcp/ctrl.c"],"versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.12.55","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.3","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ad16235c9d3ef7ec17c109ff39b7504f49d17072"},{"url":"https://git.kernel.org/stable/c/cc976ec9e38bb79409de3261ba1dbb6868e2a53e"},{"url":"https://git.kernel.org/stable/c/893c49a78d9f85e4b8081b908fb7c407d018106a"}],"title":"mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().","x_generator":{"engine":"bippy-1.2.0"}}}}