{"api_version":"1","generated_at":"2026-07-23T13:01:32+00:00","cve":"CVE-2026-23169","urls":{"html":"https://cve.report/CVE-2026-23169","api":"https://cve.report/api/cve/CVE-2026-23169.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23169","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23169"},"summary":{"title":"mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix race in mptcp_pm_nl_flush_addrs_doit()\n\nsyzbot and Eulgyu Kim reported crashes in mptcp_pm_nl_get_local_id()\nand/or mptcp_pm_nl_is_backup()\n\nRoot cause is list_splice_init() in mptcp_pm_nl_flush_addrs_doit()\nwhich is not RCU ready.\n\nlist_splice_init_rcu() can not be called here while holding pernet->lock\nspinlock.\n\nMany thanks to Eulgyu Kim for providing a repro and testing our patches.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-02-14 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fix race in mptcp_pm_nl_flush_addrs_doit()","CVE":"CVE-2026-23169","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23169","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix race in mptcp_pm_nl_flush_addrs_doit()\n\nsyzbot and Eulgyu Kim reported crashes in mptcp_pm_nl_get_local_id()\nand/or mptcp_pm_nl_is_backup()\n\nRoot cause is list_splice_init() in mptcp_pm_nl_flush_addrs_doit()\nwhich is not RCU ready.\n\nlist_splice_init_rcu() can not be called here while holding pernet->lock\nspinlock.\n\nMany thanks to Eulgyu Kim for providing a repro and testing our patches.","Type":"Description","Title":"mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()"}]}}}