{"id":"CVE-2022-49586","state":"PUBLISHED","title":"tcp: Fix data-races around sysctl_tcp_fastopen.","description":"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.","publishedAt":"2025-02-26T02:23:21.568Z","updatedAt":"2026-05-11T19:02:48.770Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux 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Fix data-races around sysctl_tcp_fastopen.","descriptions":[{"lang":"en","value":"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 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ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.7,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2022-49586","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:36:04.989302Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-362","lang":"en","type":"CWE","description":"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:36:54.157Z"}}]}}}