github - ghsa-mg35-fw68-x22w

GHSA-MG35-FW68-X22W

Vulnerability from github – Published: 2025-01-21 15:31 – Updated: 2025-10-15 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

netdev: prevent accessing NAPI instances from another namespace

The NAPI IDs were not fully exposed to user space prior to the netlink API, so they were never namespaced. The netlink API must ensure that at the very least NAPI instance belongs to the same netns as the owner of the genl sock.

napi_by_id() can become static now, but it needs to move because of dev_get_by_napi_id().

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21659"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-21T13:15:09Z",
    "severity": "MODERATE"
  },
  "details": "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().",
  "id": "GHSA-mg35-fw68-x22w",
  "modified": "2025-10-15T15:30:21Z",
  "published": "2025-01-21T15:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21659"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b683ba0df11ff563cc237eb1b74d6adfa77226bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1cacd74776895f6435941f86a1130e58f6dd226"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-21659 (GCVE-0-2025-21659)

Vulnerability from cvelistv5 – Published: 2025-01-21 12:18 – Updated: 2025-05-04 07:18

Title

netdev: prevent accessing NAPI instances from another namespace

Summary

In the Linux kernel, the following vulnerability has been resolved: netdev: prevent accessing NAPI instances from another namespace The NAPI IDs were not fully exposed to user space prior to the netlink API, so they were never namespaced. The netlink API must ensure that at the very least NAPI instance belongs to the same netns as the owner of the genl sock. napi_by_id() can become static now, but it needs to move because of dev_get_by_napi_id().

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b683ba0df11ff563c…
	https://git.kernel.org/stable/c/d1cacd74776895f64…

Impacted products

Vendor

Product

Version

Linux

Affected: 27f91aaf49b3a50e5a02ad5fa27b7c453d029a72 , < b683ba0df11ff563cc237eb1b74d6adfa77226bf (git)
Affected: 27f91aaf49b3a50e5a02ad5fa27b7c453d029a72 , < d1cacd74776895f6435941f86a1130e58f6dd226 (git)

Linux

Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.12.10 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/dev.c",
            "net/core/dev.h",
            "net/core/netdev-genl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b683ba0df11ff563cc237eb1b74d6adfa77226bf",
              "status": "affected",
              "version": "27f91aaf49b3a50e5a02ad5fa27b7c453d029a72",
              "versionType": "git"
            },
            {
              "lessThan": "d1cacd74776895f6435941f86a1130e58f6dd226",
              "status": "affected",
              "version": "27f91aaf49b3a50e5a02ad5fa27b7c453d029a72",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/core/dev.c",
            "net/core/dev.h",
            "net/core/netdev-genl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.10",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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      "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:18:25.265Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "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",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21659",
    "datePublished": "2025-01-21T12:18:15.407Z",
    "dateReserved": "2024-12-29T08:45:45.732Z",
    "dateUpdated": "2025-05-04T07:18:25.265Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MG35-FW68-X22W

CVE-2025-21659 (GCVE-0-2025-21659)

Tags

Sightings

Nomenclature