github - ghsa-4mf7-7hx2-42fv

GHSA-4MF7-7HX2-42FV

Vulnerability from github – Published: 2025-12-23 15:30 – Updated: 2025-12-23 15:30

Details

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

net: dsa: microchip: Don't free uninitialized ksz_irq

If something goes wrong at setup, ksz_irq_free() can be called on uninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It leads to freeing uninitialized IRQ numbers and/or domains.

Use dsa_switch_for_each_user_port_continue_reverse() in the error path to iterate only over the fully initialized ports.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68338"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-23T14:16:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: microchip: Don\u0027t free uninitialized ksz_irq\n\nIf something goes wrong at setup, ksz_irq_free() can be called on\nuninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It\nleads to freeing uninitialized IRQ numbers and/or domains.\n\nUse dsa_switch_for_each_user_port_continue_reverse() in the error path\nto iterate only over the fully initialized ports.",
  "id": "GHSA-4mf7-7hx2-42fv",
  "modified": "2025-12-23T15:30:40Z",
  "published": "2025-12-23T15:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68338"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25b62cc5b22c45face094ae3e8717258e46d1d19"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9428654c827fa8d38b898135d26d39ee2d544246"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68338 (GCVE-0-2025-68338)

Vulnerability from cvelistv5 – Published: 2025-12-23 13:58 – Updated: 2025-12-23 13:58

Title

net: dsa: microchip: Don't free uninitialized ksz_irq

Summary

In the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: Don't free uninitialized ksz_irq If something goes wrong at setup, ksz_irq_free() can be called on uninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It leads to freeing uninitialized IRQ numbers and/or domains. Use dsa_switch_for_each_user_port_continue_reverse() in the error path to iterate only over the fully initialized ports.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/9428654c827fa8d38…
	https://git.kernel.org/stable/c/32abbcf4379a0f851…
	https://git.kernel.org/stable/c/25b62cc5b22c45fac…

Impacted products

Vendor

Product

Version

Linux

Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 9428654c827fa8d38b898135d26d39ee2d544246 (git)
Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0 (git)
Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 25b62cc5b22c45face094ae3e8717258e46d1d19 (git)

Linux

Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.12.61 , ≤ 6.12.* (semver)
Unaffected: 6.17.11 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/dsa/microchip/ksz_common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9428654c827fa8d38b898135d26d39ee2d544246",
              "status": "affected",
              "version": "cc13ab18b201ab630f03511060ba289b70052959",
              "versionType": "git"
            },
            {
              "lessThan": "32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0",
              "status": "affected",
              "version": "cc13ab18b201ab630f03511060ba289b70052959",
              "versionType": "git"
            },
            {
              "lessThan": "25b62cc5b22c45face094ae3e8717258e46d1d19",
              "status": "affected",
              "version": "cc13ab18b201ab630f03511060ba289b70052959",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/dsa/microchip/ksz_common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.61",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.11",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: microchip: Don\u0027t free uninitialized ksz_irq\n\nIf something goes wrong at setup, ksz_irq_free() can be called on\nuninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It\nleads to freeing uninitialized IRQ numbers and/or domains.\n\nUse dsa_switch_for_each_user_port_continue_reverse() in the error path\nto iterate only over the fully initialized ports."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-23T13:58:24.121Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9428654c827fa8d38b898135d26d39ee2d544246"
        },
        {
          "url": "https://git.kernel.org/stable/c/32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/25b62cc5b22c45face094ae3e8717258e46d1d19"
        }
      ],
      "title": "net: dsa: microchip: Don\u0027t free uninitialized ksz_irq",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68338",
    "datePublished": "2025-12-23T13:58:24.121Z",
    "dateReserved": "2025-12-16T14:48:05.297Z",
    "dateUpdated": "2025-12-23T13:58:24.121Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-4MF7-7HX2-42FV

CVE-2025-68338 (GCVE-0-2025-68338)

Tags

Sightings

Nomenclature