github - ghsa-f2wc-6g38-9vmc

GHSA-F2WC-6G38-9VMC

Vulnerability from github – Published: 2025-08-16 12:30 – Updated: 2025-11-18 18:32

Details

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

ice: add NULL check in eswitch lag check

The function ice_lag_is_switchdev_running() is being called from outside of the LAG event handler code. This results in the lag->upper_netdev being NULL sometimes. To avoid a NULL-pointer dereference, there needs to be a check before it is dereferenced.

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-2025-38526"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-16T12:15:28Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: add NULL check in eswitch lag check\n\nThe function ice_lag_is_switchdev_running() is being called from outside of\nthe LAG event handler code.  This results in the lag-\u003eupper_netdev being\nNULL sometimes.  To avoid a NULL-pointer dereference, there needs to be a\ncheck before it is dereferenced.",
  "id": "GHSA-f2wc-6g38-9vmc",
  "modified": "2025-11-18T18:32:48Z",
  "published": "2025-08-16T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38526"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/245917d3c5ed7c6ae720302b64eac5c6f0c85177"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27591d926191e42b2332e4bad3bcd3a49def393b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ce58b01ada408b372f15b7c992ed0519840e3cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a5d64f0eec82076b2c09fee2195d640cfbe3379"
    }
  ],
  "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-2025-38526 (GCVE-0-2025-38526)

Vulnerability from cvelistv5 – Published: 2025-08-16 11:12 – Updated: 2025-08-16 11:12

Summary

In the Linux kernel, the following vulnerability has been resolved: ice: add NULL check in eswitch lag check The function ice_lag_is_switchdev_running() is being called from outside of the LAG event handler code. This results in the lag->upper_netdev being NULL sometimes. To avoid a NULL-pointer dereference, there needs to be a check before it is dereferenced.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/27591d926191e42b2…
	https://git.kernel.org/stable/c/5a5d64f0eec82076b…
	https://git.kernel.org/stable/c/245917d3c5ed7c6ae…
	https://git.kernel.org/stable/c/3ce58b01ada408b37…

Impacted products

Vendor

Product

Version

Linux

Affected: 776fe19953b0e0af00399e50fb3b205101d4b3c1 , < 27591d926191e42b2332e4bad3bcd3a49def393b (git)
Affected: 776fe19953b0e0af00399e50fb3b205101d4b3c1 , < 5a5d64f0eec82076b2c09fee2195d640cfbe3379 (git)
Affected: 776fe19953b0e0af00399e50fb3b205101d4b3c1 , < 245917d3c5ed7c6ae720302b64eac5c6f0c85177 (git)
Affected: 776fe19953b0e0af00399e50fb3b205101d4b3c1 , < 3ce58b01ada408b372f15b7c992ed0519840e3cf (git)

Linux

Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.100 , ≤ 6.6.* (semver)
Unaffected: 6.12.40 , ≤ 6.12.* (semver)
Unaffected: 6.15.8 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_lag.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "27591d926191e42b2332e4bad3bcd3a49def393b",
              "status": "affected",
              "version": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
              "versionType": "git"
            },
            {
              "lessThan": "5a5d64f0eec82076b2c09fee2195d640cfbe3379",
              "status": "affected",
              "version": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
              "versionType": "git"
            },
            {
              "lessThan": "245917d3c5ed7c6ae720302b64eac5c6f0c85177",
              "status": "affected",
              "version": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "776fe19953b0e0af00399e50fb3b205101d4b3c1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_lag.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.100",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.100",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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        }
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        {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: add NULL check in eswitch lag check\n\nThe function ice_lag_is_switchdev_running() is being called from outside of\nthe LAG event handler code.  This results in the lag-\u003eupper_netdev being\nNULL sometimes.  To avoid a NULL-pointer dereference, there needs to be a\ncheck before it is dereferenced."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-16T11:12:20.036Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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        {
          "url": "https://git.kernel.org/stable/c/3ce58b01ada408b372f15b7c992ed0519840e3cf"
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      ],
      "title": "ice: add NULL check in eswitch lag check",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38526",
    "datePublished": "2025-08-16T11:12:20.036Z",
    "dateReserved": "2025-04-16T04:51:24.023Z",
    "dateUpdated": "2025-08-16T11:12:20.036Z",
    "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-F2WC-6G38-9VMC

CVE-2025-38526 (GCVE-0-2025-38526)

Tags

Sightings

Nomenclature