{"id":"CVE-2024-40920","summary":"net: bridge: mst: fix suspicious rcu usage in br_mst_set_state","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: mst: fix suspicious rcu usage in br_mst_set_state\n\nI converted br_mst_set_state to RCU to avoid a vlan use-after-free\nbut forgot to change the vlan group dereference helper. Switch to vlan\ngroup RCU deref helper to fix the suspicious rcu usage warning.","modified":"2026-04-02T12:17:20.854749Z","published":"2024-07-12T12:25:02.222Z","related":["SUSE-SU-2024:3194-1","SUSE-SU-2024:3195-1","SUSE-SU-2024:3383-1","SUSE-SU-2025:0255-1","SUSE-SU-2025:0262-1","SUSE-SU-2025:0263-1","SUSE-SU-2025:0265-1","SUSE-SU-2025:0268-1","SUSE-SU-2025:0269-1","SUSE-SU-2025:20044-1","SUSE-SU-2025:20047-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40920.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166"},{"type":"WEB","url":"https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345"},{"type":"WEB","url":"https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40920.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40920"},{"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":"8ca9a750fc711911ef616ceb627d07357b04545e"},{"fixed":"caaa2129784a04dcade0ea92c12e6ff90bbd23d8"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4488617e5e995a09abe4d81add5fb165674edb59"},{"fixed":"7caefa2771722e65496d85b62e1dc4442b7d1345"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e43dd2b1ec746e105b7db5f9ad6ef14685a615a4"},{"fixed":"406bfc04b01ee47e4c626f77ecc7d9f85135b166"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3a7c1661ae1383364cd6092d851f5e5da64d476b"},{"fixed":"546ceb1dfdac866648ec959cbc71d9525bd73462"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"a2b01e65d9ba8af2bb086d3b7288ca53a07249ac"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40920.json"}}],"schema_version":"1.7.5"}