{"id":"CVE-2026-23169","summary":"mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()","details":"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-\u003elock\nspinlock.\n\nMany thanks to Eulgyu Kim for providing a repro and testing our patches.","modified":"2026-04-24T18:29:24.359926108Z","published":"2026-02-14T16:01:32.139Z","related":["SUSE-SU-2026:0962-1","SUSE-SU-2026:1081-1","SUSE-SU-2026:20838-1","SUSE-SU-2026:20931-1","SUSE-SU-2026:21114-1","SUSE-SU-2026:21123-1","SUSE-SU-2026:21255-1","openSUSE-SU-2026:20416-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23169.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555"},{"type":"WEB","url":"https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23169.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23169"},{"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":"141694df6573b49aa4143c92556544b4b0bbda72"},{"fixed":"338d40bab283da2639780ee3e458fb61f1567d8c"},{"fixed":"7896dbe990d56d5bb8097863b2645355633665eb"},{"fixed":"455e882192c9833f176f3fbbbb2f036b6c5bf555"},{"fixed":"51223bdd0f60b06cfc7f25885c4d4be917adba94"},{"fixed":"1f1b9523527df02685dde603f20ff6e603d8e4a1"},{"fixed":"e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23169.json"}}],"schema_version":"1.7.5"}