{"id":"CVE-2022-49586","summary":"tcp: Fix data-races around sysctl_tcp_fastopen.","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Fix data-races around sysctl_tcp_fastopen.\n\nWhile reading sysctl_tcp_fastopen, it can be changed concurrently.\nThus, we need to add READ_ONCE() to its readers.","modified":"2026-08-12T03:30:09.932641081Z","published":"2025-02-26T02:23:21.568Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49586.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/03da610696a32578fc4f986479341ce9d430df08"},{"type":"WEB","url":"https://git.kernel.org/stable/c/22938534c611136f35e2ca545bb668073ca5ef49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/25d53d858a6c0b89a6e69e376c2a57c4f4c2c8cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/448ab998947996a0a451f8229f19087964cf2670"},{"type":"WEB","url":"https://git.kernel.org/stable/c/539d9ab79eba3974b479cad61a8688c41fe62e12"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5a54213318c43f4009ae158347aa6016e3b9b55a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49586.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49586"},{"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":"2100c8d2d9db23c0a09901a782bb4e3b21bee298"},{"fixed":"03da610696a32578fc4f986479341ce9d430df08"},{"fixed":"25d53d858a6c0b89a6e69e376c2a57c4f4c2c8cc"},{"fixed":"22938534c611136f35e2ca545bb668073ca5ef49"},{"fixed":"539d9ab79eba3974b479cad61a8688c41fe62e12"},{"fixed":"448ab998947996a0a451f8229f19087964cf2670"},{"fixed":"5a54213318c43f4009ae158347aa6016e3b9b55a"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49586.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"4.19.254"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.208"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.134"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.58"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"5.18.15"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49586.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}