{"id":"CVE-2022-49594","state":"PUBLISHED","title":"tcp: Fix a data-race around sysctl_tcp_mtu_probe_floor.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Fix a data-race around sysctl_tcp_mtu_probe_floor.\n\nWhile reading sysctl_tcp_mtu_probe_floor, it can be changed concurrently.\nThus, we need to add READ_ONCE() to its reader.","publishedAt":"2025-02-26T02:23:25.531Z","updatedAt":"2026-05-11T19:02:58.016Z","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 a data-race around sysctl_tcp_mtu_probe_floor.","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Fix a data-race around sysctl_tcp_mtu_probe_floor.\n\nWhile reading sysctl_tcp_mtu_probe_floor, it can be changed concurrently.\nThus, we need to add READ_ONCE() to its reader."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c04b79b6cfd714144f6a2cf359603d82ee631e62","status":"affected","lessThan":"033963b220633ed1602d458e7e4ac06afa9fefb2","versionType":"git"},{"version":"c04b79b6cfd714144f6a2cf359603d82ee631e62","status":"affected","lessThan":"d5bece4df6090395f891110ef52a6f82d16685db","versionType":"git"},{"version":"c04b79b6cfd714144f6a2cf359603d82ee631e62","status":"affected","lessThan":"cc36c37f5fe066c4708e623ead96dc8f57224bf5","versionType":"git"},{"version":"c04b79b6cfd714144f6a2cf359603d82ee631e62","status":"affected","lessThan":"e2ecbf3f0aa88277d43908c53b99399d55729ff9","versionType":"git"},{"version":"c04b79b6cfd714144f6a2cf359603d82ee631e62","status":"affected","lessThan":"8e92d4423615a5257d0d871fc067aa561f597deb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv4/tcp_timer.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.4","versionType":"semver"},{"version":"5.4.208","status":"unaffected","lessThanOrEqual":"5.4.*","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_timer.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/033963b220633ed1602d458e7e4ac06afa9fefb2"},{"url":"https://git.kernel.org/stable/c/d5bece4df6090395f891110ef52a6f82d16685db"},{"url":"https://git.kernel.org/stable/c/cc36c37f5fe066c4708e623ead96dc8f57224bf5"},{"url":"https://git.kernel.org/stable/c/e2ecbf3f0aa88277d43908c53b99399d55729ff9"},{"url":"https://git.kernel.org/stable/c/8e92d4423615a5257d0d871fc067aa561f597deb"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:02:58.016Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.4.208"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.10.134"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.15.58"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.18.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","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-2022-49594","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:35:41.349369Z"}}}],"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":"2025-10-01T19:36:53.180Z"}}]}}}