{"id":"CVE-2025-37997","revision":null,"records":[{"revision":"78459508bbed458e9bc9d6658320b59e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37997","aliases":[],"title":"netfilter: ipset: fix region locking in hash types","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: fix region locking in hash types\n\nRegion locking introduced in v5.6-rc4 contained three macros to handle\nthe region locks: ahash_bucket_start(), ahash_bucket_end() which gave\nback the start and end hash bucket values belonging to a given region\nlock and ahash_region() which should give back the region lock belonging\nto a given hash bucket. The latter was incorrect which can lead to a\nrace condition between the garbage collector and adding new elements\nwhen a hash type of set is defined with timeouts.","state":0,"publishedAt":"2025-05-29T13:15:55.58+00:00","modifiedAt":"2026-10-15T21:52:05.816+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/netfilter/ipset/ip_set_hash_gen.h\"\n ],\n \"versions\": [\n {\n \"version\": \"5dd9488ae41070b69d2f4acb580f77db5705f9ca\",\n \"lessThan\": \"00cfc5fad1491796942a948808afb968a0a3f35b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f66ee0410b1c3481ee75e5db9b34547b4d582465\",\n \"lessThan\": \"226ce0ec38316d9e3739e73a64b6b8304646c658\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f66ee0410b1c3481ee75e5db9b34547b4d582465\",\n \"lessThan\": \"82c1eb32693bc48251d92532975e19160987e5b9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f66ee0410b1c3481ee75e5db9b34547b4d582465\",\n \"lessThan\": \"aa77294b0f73bb8265987591460cd25b8722c3df\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f66ee0410b1c3481ee75e5db9b34547b4d582465\",\n \"lessThan\": \"a3dfec485401943e315c394c29afe2db8f9481d6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f66ee0410b1c3481ee75e5db9b34547b4d582465\",\n \"lessThan\": \"e2ab67672b2288521a6146034a971f9a82ffc5c5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f66ee0410b1c3481ee75e5db9b34547b4d582465\",\n \"lessThan\": \"6e002ecc1c8cfdfc866b9104ab7888da54613e59\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f66ee0410b1c3481ee75e5db9b34547b4d582465\",\n \"lessThan\": \"8478a729c0462273188263136880480729e9efca\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a469bab3386aebff33c59506f3a95e35b91118fd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5.4.24\",\n \"lessThan\": \"5.4.294\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.5.8\",\n \"lessThan\": \"5.6\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/netfilter/ipset/ip_set_hash_gen.h\"\n ],\n \"versions\": [\n {\n \"version\": \"5.6\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.6\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.294\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.238\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.183\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.139\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.91\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.29\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.7\",\n \"lessThanOrEqual\": \"6.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/00cfc5fad1491796942a948808afb968a0a3f35b","https://git.kernel.org/stable/c/226ce0ec38316d9e3739e73a64b6b8304646c658","https://git.kernel.org/stable/c/82c1eb32693bc48251d92532975e19160987e5b9","https://git.kernel.org/stable/c/aa77294b0f73bb8265987591460cd25b8722c3df","https://git.kernel.org/stable/c/a3dfec485401943e315c394c29afe2db8f9481d6","https://git.kernel.org/stable/c/e2ab67672b2288521a6146034a971f9a82ffc5c5","https://git.kernel.org/stable/c/6e002ecc1c8cfdfc866b9104ab7888da54613e59","https://git.kernel.org/stable/c/8478a729c0462273188263136880480729e9efca"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37997","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37997","identifiers":["CVE-2025-37997"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-b76e3ccc849343a5ba0ff79061dc619e","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T13:09:25.364588+00:00","lastSuccessAt":"2026-11-09T13:09:25.4303168+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:09:25.4303168+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T13:04:36.1502744+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T13:04:36.1502744+00:00","lastSuccessAt":"2026-11-09T13:04:36.3096956+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.3096959+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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