{"id":"CVE-2022-49561","summary":"netfilter: conntrack: re-fetch conntrack after insertion","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: conntrack: re-fetch conntrack after insertion\n\nIn case the conntrack is clashing, insertion can free skb-\u003e_nfct and\nset skb-\u003e_nfct to the already-confirmed entry.\n\nThis wasn't found before because the conntrack entry and the extension\nspace used to free'd after an rcu grace period, plus the race needs\nevents enabled to trigger.","modified":"2026-03-20T12:22:27.124864Z","published":"2025-02-26T02:14:06.030Z","related":["SUSE-SU-2025:01600-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49561.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8af"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49561.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49561"},{"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":"71d8c47fc653711c41bc3282e5b0e605b3727956"},{"fixed":"e97222b785e70e8973281666d709baad6523d8af"},{"fixed":"92a999d1963eed0df666284e20055136ceabd12f"},{"fixed":"b16bb373988da3ceb0308381634117e18b6ec60d"},{"fixed":"91a36ec160ec1a0c8f5352b772dffcbb0b6023e3"},{"fixed":"01989d7eebb61c99bd4b88ebc8e261bd2f02caed"},{"fixed":"04f9e9104c969d8ce10a4a43634f641ed082092d"},{"fixed":"04e4a11dc723c52db7a36dc58f0d69ce6426f8f0"},{"fixed":"56b14ecec97f39118bf85c9ac2438c5a949509ed"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49561.json"}}],"schema_version":"1.7.5"}