{"id":"CVE-2022-49579","state":"PUBLISHED","title":"ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: Fix data-races around sysctl_fib_multipath_hash_policy.\n\nWhile reading sysctl_fib_multipath_hash_policy, it can be changed\nconcurrently.  Thus, we need to add READ_ONCE() to its readers.","publishedAt":"2025-02-26T02:23:18.163Z","updatedAt":"2026-05-11T19:02:40.653Z","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":"bf4e0a3db97eb882368fd82980b3b1fa0b5b9778","status":"affected","lessThan":"21fb844bc1dc1461f5038d655aa1a14f39e13049","versionType":"git"},{"version":"bf4e0a3db97eb882368fd82980b3b1fa0b5b9778","status":"affected","lessThan":"918ee6592ab9a2ff5316d06cfd4aaef60ccabec6","versionType":"git"},{"version":"bf4e0a3db97eb882368fd82980b3b1fa0b5b9778","status":"affected","lessThan":"7998c12a08c97cc26660532c9f90a34bd7d8da5a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c","net/ipv4/route.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","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":["drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c","net/ipv4/route.c"]}],"references":["https://git.kernel.org/stable/c/21fb844bc1dc1461f5038d655aa1a14f39e13049","https://git.kernel.org/stable/c/918ee6592ab9a2ff5316d06cfd4aaef60ccabec6","https://git.kernel.org/stable/c/7998c12a08c97cc26660532c9f90a34bd7d8da5a"],"weaknesses":["CWE-362"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49579.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49579","state":"PUBLISHED","datePublished":"2025-02-26T02:23:18.163Z","dateUpdated":"2026-05-11T19:02:40.653Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T02:21:30.411Z"},"containers":{"cna":{"title":"ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: Fix data-races around sysctl_fib_multipath_hash_policy.\n\nWhile reading sysctl_fib_multipath_hash_policy, it can be changed\nconcurrently.  Thus, we need to add READ_ONCE() to its readers."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"bf4e0a3db97eb882368fd82980b3b1fa0b5b9778","status":"affected","lessThan":"21fb844bc1dc1461f5038d655aa1a14f39e13049","versionType":"git"},{"version":"bf4e0a3db97eb882368fd82980b3b1fa0b5b9778","status":"affected","lessThan":"918ee6592ab9a2ff5316d06cfd4aaef60ccabec6","versionType":"git"},{"version":"bf4e0a3db97eb882368fd82980b3b1fa0b5b9778","status":"affected","lessThan":"7998c12a08c97cc26660532c9f90a34bd7d8da5a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c","net/ipv4/route.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","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":["drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c","net/ipv4/route.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/21fb844bc1dc1461f5038d655aa1a14f39e13049"},{"url":"https://git.kernel.org/stable/c/918ee6592ab9a2ff5316d06cfd4aaef60ccabec6"},{"url":"https://git.kernel.org/stable/c/7998c12a08c97cc26660532c9f90a34bd7d8da5a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:02:40.653Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"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-2022-49579","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:36:20.971537Z"}}}],"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":"2025-10-01T19:36:54.818Z"}}]}}}