{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-21659", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.732Z", "datePublished": "2025-01-21T12:18:15.407Z", "dateUpdated": "2025-05-04T07:18:25.265Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:18:25.265Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdev: prevent accessing NAPI instances from another namespace\n\nThe NAPI IDs were not fully exposed to user space prior to the netlink\nAPI, so they were never namespaced. The netlink API must ensure that\nat the very least NAPI instance belongs to the same netns as the owner\nof the genl sock.\n\nnapi_by_id() can become static now, but it needs to move because of\ndev_get_by_napi_id()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/dev.c", "net/core/dev.h", "net/core/netdev-genl.c"], "versions": [{"version": "27f91aaf49b3a50e5a02ad5fa27b7c453d029a72", "lessThan": "b683ba0df11ff563cc237eb1b74d6adfa77226bf", "status": "affected", "versionType": "git"}, {"version": "27f91aaf49b3a50e5a02ad5fa27b7c453d029a72", "lessThan": "d1cacd74776895f6435941f86a1130e58f6dd226", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/dev.c", "net/core/dev.h", "net/core/netdev-genl.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.10", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.12.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b683ba0df11ff563cc237eb1b74d6adfa77226bf"}, {"url": "https://git.kernel.org/stable/c/d1cacd74776895f6435941f86a1130e58f6dd226"}], "title": "netdev: prevent accessing NAPI instances from another namespace", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9456486B-ABA1-4DFF-B398-A54A1640A72E", "versionEndExcluding": "6.12.10", "versionStartIncluding": "6.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*", "matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*", "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*", "matchCriteriaId": "93C0660D-7FB8-4FBA-892A-B064BA71E49E", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*", "matchCriteriaId": "034C36A6-C481-41F3-AE9A-D116E5BE6895", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:*", "matchCriteriaId": "8AF9DC49-2085-4FFB-A7E3-73DFAFECC7F2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdev: prevent accessing NAPI instances from another namespace\n\nThe NAPI IDs were not fully exposed to user space prior to the netlink\nAPI, so they were never namespaced. The netlink API must ensure that\nat the very least NAPI instance belongs to the same netns as the owner\nof the genl sock.\n\nnapi_by_id() can become static now, but it needs to move because of\ndev_get_by_napi_id()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netdev: evitar el acceso a instancias NAPI desde otro espacio de nombres Los identificadores NAPI no estaban completamente expuestos al espacio de usuario antes de la API netlink, por lo que nunca se asignaron espacios de nombres. La API netlink debe garantizar que, como m\u00ednimo, la instancia NAPI pertenezca a la misma red que el propietario del calcet\u00edn genl. napi_by_id() ahora puede volverse est\u00e1tico, pero debe moverse debido a dev_get_by_napi_id(). "}], "id": "CVE-2025-21659", "lastModified": "2025-10-15T13:47:59.410", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-01-21T13:15:09.540", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b683ba0df11ff563cc237eb1b74d6adfa77226bf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d1cacd74776895f6435941f86a1130e58f6dd226"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netdev: prevent accessing NAPI instances from another namespace", "id": "2339127", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2339127"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-269", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetdev: prevent accessing NAPI instances from another namespace\nThe NAPI IDs were not fully exposed to user space prior to the netlink\nAPI, so they were never namespaced. The netlink API must ensure that\nat the very least NAPI instance belongs to the same netns as the owner\nof the genl sock.\nnapi_by_id() can become static now, but it needs to move because of\ndev_get_by_napi_id()."], "name": "CVE-2025-21659", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-01-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21659\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21659\nhttps://lore.kernel.org/linux-cve-announce/2025012133-CVE-2025-21659-1c41@gregkh/T"], "threat_severity": "Moderate"}

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