{"id":"CVE-2022-49585","state":"PUBLISHED","title":"tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.\n\nWhile reading sysctl_tcp_fastopen_blackhole_timeout, it can be changed\nconcurrently.  Thus, we need to add READ_ONCE() to its readers.","publishedAt":"2025-02-26T02:23:21.085Z","updatedAt":"2026-05-11T19:02:47.504Z","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 Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"0dc2f19d8c2636cebda7976b5ea40c6d69f0d891","versionType":"git"},{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"a77a75a0e7f397550ab039f96115103e78dd5c69","versionType":"git"},{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"8afa5604e295046c02b79ccf9e2bbbf8d969d60e","versionType":"git"},{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"021266ec640c7a4527e6cd4b7349a512b351de1d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv4/tcp_fastopen.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"5.10.134","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.58","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.18.15","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv4/tcp_fastopen.c"]}],"references":["https://git.kernel.org/stable/c/0dc2f19d8c2636cebda7976b5ea40c6d69f0d891","https://git.kernel.org/stable/c/a77a75a0e7f397550ab039f96115103e78dd5c69","https://git.kernel.org/stable/c/8afa5604e295046c02b79ccf9e2bbbf8d969d60e","https://git.kernel.org/stable/c/021266ec640c7a4527e6cd4b7349a512b351de1d"],"weaknesses":["CWE-362"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49585.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49585","state":"PUBLISHED","datePublished":"2025-02-26T02:23:21.085Z","dateUpdated":"2026-05-11T19:02:47.504Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T02:21:30.412Z"},"containers":{"cna":{"title":"tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.\n\nWhile reading sysctl_tcp_fastopen_blackhole_timeout, it can be changed\nconcurrently.  Thus, we need to add READ_ONCE() to its readers."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"0dc2f19d8c2636cebda7976b5ea40c6d69f0d891","versionType":"git"},{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"a77a75a0e7f397550ab039f96115103e78dd5c69","versionType":"git"},{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"8afa5604e295046c02b79ccf9e2bbbf8d969d60e","versionType":"git"},{"version":"cf1ef3f0719b4dcb74810ed507e2a2540f9811b4","status":"affected","lessThan":"021266ec640c7a4527e6cd4b7349a512b351de1d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv4/tcp_fastopen.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"5.10.134","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.58","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.18.15","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv4/tcp_fastopen.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0dc2f19d8c2636cebda7976b5ea40c6d69f0d891"},{"url":"https://git.kernel.org/stable/c/a77a75a0e7f397550ab039f96115103e78dd5c69"},{"url":"https://git.kernel.org/stable/c/8afa5604e295046c02b79ccf9e2bbbf8d969d60e"},{"url":"https://git.kernel.org/stable/c/021266ec640c7a4527e6cd4b7349a512b351de1d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:02:47.504Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.10.134"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.15.58"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.18.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA 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-2022-49585","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:36:08.183675Z"}}}],"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":"2025-10-01T19:36:54.317Z"}}]}}}