github - ghsa-2qj8-c2v4-6cg6

GHSA-2QJ8-C2V4-6CG6

Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2025-10-01 21:31

Details

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

net: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases

If the XDP program doesn't result in XDP_PASS then we leak the memory allocated by am65_cpsw_build_skb().

It is pointless to allocate SKB memory before running the XDP program as we would be wasting CPU cycles for cases other than XDP_PASS. Move the SKB allocation after evaluating the XDP program result.

This fixes the memleak. A performance boost is seen for XDP_DROP test.

XDP_DROP test: Before: 460256 rx/s 0 err/s After: 784130 rx/s 0 err/s

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-2025-21788"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:19Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases\n\nIf the XDP program doesn\u0027t result in XDP_PASS then we leak the\nmemory allocated by am65_cpsw_build_skb().\n\nIt is pointless to allocate SKB memory before running the XDP\nprogram as we would be wasting CPU cycles for cases other than XDP_PASS.\nMove the SKB allocation after evaluating the XDP program result.\n\nThis fixes the memleak. A performance boost is seen for XDP_DROP test.\n\nXDP_DROP test:\nBefore: 460256 rx/s                  0 err/s\nAfter:  784130 rx/s                  0 err/s",
  "id": "GHSA-2qj8-c2v4-6cg6",
  "modified": "2025-10-01T21:31:12Z",
  "published": "2025-02-27T03:34:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21788"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bba1d042107167164a0ae3a843fdf650ab005d7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5db843258de1e4e6b1ef1cbd1797923c9e3de548"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dc11f049612b9d926aca2e55f8dc9d82850d0da3"
    }
  ],
  "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-2025-21788 (GCVE-0-2025-21788)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2025-10-01 19:36

Summary

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases If the XDP program doesn't result in XDP_PASS then we leak the memory allocated by am65_cpsw_build_skb(). It is pointless to allocate SKB memory before running the XDP program as we would be wasting CPU cycles for cases other than XDP_PASS. Move the SKB allocation after evaluating the XDP program result. This fixes the memleak. A performance boost is seen for XDP_DROP test. XDP_DROP test: Before: 460256 rx/s 0 err/s After: 784130 rx/s 0 err/s

Severity ?

5.5 (Medium)


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

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/1bba1d04210716716…
	https://git.kernel.org/stable/c/dc11f049612b9d926…
	https://git.kernel.org/stable/c/5db843258de1e4e6b…

Impacted products

Vendor

Product

Version

Linux

Affected: 8acacc40f7337527ff84cd901ed2ef0a2b95b2b6 , < 1bba1d042107167164a0ae3a843fdf650ab005d7 (git)
Affected: 8acacc40f7337527ff84cd901ed2ef0a2b95b2b6 , < dc11f049612b9d926aca2e55f8dc9d82850d0da3 (git)
Affected: 8acacc40f7337527ff84cd901ed2ef0a2b95b2b6 , < 5db843258de1e4e6b1ef1cbd1797923c9e3de548 (git)

Linux

Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.12.16 , ≤ 6.12.* (semver)
Unaffected: 6.13.4 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21788",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:30:00.916275Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-401",
                "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:36:39.866Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/am65-cpsw-nuss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "8acacc40f7337527ff84cd901ed2ef0a2b95b2b6",
              "versionType": "git"
            },
            {
              "lessThan": "dc11f049612b9d926aca2e55f8dc9d82850d0da3",
              "status": "affected",
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              "versionType": "git"
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            {
              "lessThan": "5db843258de1e4e6b1ef1cbd1797923c9e3de548",
              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/am65-cpsw-nuss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.13.4",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
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                },
                {
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                },
                {
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                }
              ],
              "negate": false,
              "operator": "OR"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases\n\nIf the XDP program doesn\u0027t result in XDP_PASS then we leak the\nmemory allocated by am65_cpsw_build_skb().\n\nIt is pointless to allocate SKB memory before running the XDP\nprogram as we would be wasting CPU cycles for cases other than XDP_PASS.\nMove the SKB allocation after evaluating the XDP program result.\n\nThis fixes the memleak. A performance boost is seen for XDP_DROP test.\n\nXDP_DROP test:\nBefore: 460256 rx/s                  0 err/s\nAfter:  784130 rx/s                  0 err/s"
        }
      ],
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        "dateUpdated": "2025-05-04T07:21:15.604Z",
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        },
        {
          "url": "https://git.kernel.org/stable/c/5db843258de1e4e6b1ef1cbd1797923c9e3de548"
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      ],
      "title": "net: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    "cveId": "CVE-2025-21788",
    "datePublished": "2025-02-27T02:18:27.336Z",
    "dateReserved": "2024-12-29T08:45:45.766Z",
    "dateUpdated": "2025-10-01T19:36:39.866Z",
    "state": "PUBLISHED"
  },
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  "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-2QJ8-C2V4-6CG6

CVE-2025-21788 (GCVE-0-2025-21788)

Tags

Sightings

Nomenclature