CVE-2026-63997 (GCVE-0-2026-63997)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:56 – Updated: 2026-07-19 14:56
VLAI
Title
ethtool: module: avoid leaking a netdev ref on module flash errors
Summary
In the Linux kernel, the following vulnerability has been resolved: ethtool: module: avoid leaking a netdev ref on module flash errors module_flash_fw_schedule() is missing undo for setting the "in_progress" flag and taking the netdev reference. Delay taking these, the device can't disappear while we are holding rtnl_lock.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e , < f7b4513e77f9571dc1041a798b93b5c4a4bfc191 (git)
Affected: 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e , < 61848c83b9132ab839809fe415ba7802a0aca4f6 (git)
Affected: 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e , < 956b134d917fd7e014dc7e39a9b7610c04fcc9ba (git)
Affected: 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e , < fb7f511d62692661846c47f199e0afe25c2982db (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.93 , ≤ 6.12.* (semver)
Unaffected: 6.18.35 , ≤ 6.18.* (semver)
Unaffected: 7.0.12 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ethtool/module.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f7b4513e77f9571dc1041a798b93b5c4a4bfc191",
              "status": "affected",
              "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
              "versionType": "git"
            },
            {
              "lessThan": "61848c83b9132ab839809fe415ba7802a0aca4f6",
              "status": "affected",
              "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
              "versionType": "git"
            },
            {
              "lessThan": "956b134d917fd7e014dc7e39a9b7610c04fcc9ba",
              "status": "affected",
              "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
              "versionType": "git"
            },
            {
              "lessThan": "fb7f511d62692661846c47f199e0afe25c2982db",
              "status": "affected",
              "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ethtool/module.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.93",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.35",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.12",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: module: avoid leaking a netdev ref on module flash errors\n\nmodule_flash_fw_schedule() is missing undo for setting\nthe \"in_progress\" flag and taking the netdev reference.\nDelay taking these, the device can\u0027t disappear while\nwe are holding rtnl_lock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T14:56:15.965Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f7b4513e77f9571dc1041a798b93b5c4a4bfc191"
        },
        {
          "url": "https://git.kernel.org/stable/c/61848c83b9132ab839809fe415ba7802a0aca4f6"
        },
        {
          "url": "https://git.kernel.org/stable/c/956b134d917fd7e014dc7e39a9b7610c04fcc9ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/fb7f511d62692661846c47f199e0afe25c2982db"
        }
      ],
      "title": "ethtool: module: avoid leaking a netdev ref on module flash errors",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-63997",
    "datePublished": "2026-07-19T14:56:15.965Z",
    "dateReserved": "2026-07-19T07:54:57.026Z",
    "dateUpdated": "2026-07-19T14:56:15.965Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-63997",
      "date": "2026-09-21",
      "epss": "0.00168",
      "percentile": "0.06497"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "net/ethtool/module.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "f7b4513e77f9571dc1041a798b93b5c4a4bfc191",
                    "status": "affected",
                    "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "61848c83b9132ab839809fe415ba7802a0aca4f6",
                    "status": "affected",
                    "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "956b134d917fd7e014dc7e39a9b7610c04fcc9ba",
                    "status": "affected",
                    "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "fb7f511d62692661846c47f199e0afe25c2982db",
                    "status": "affected",
                    "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "net/ethtool/module.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.11"
                  },
                  {
                    "lessThan": "6.11",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.93",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.35",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.0.*",
                    "status": "unaffected",
                    "version": "7.0.12",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.1",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: module: avoid leaking a netdev ref on module flash errors\n\nmodule_flash_fw_schedule() is missing undo for setting\nthe \"in_progress\" flag and taking the netdev reference.\nDelay taking these, the device can\u0027t disappear while\nwe are holding rtnl_lock."
          }
        ],
        "id": "CVE-2026-63997",
        "lastModified": "2026-07-30T14:51:11.223",
        "metrics": {},
        "published": "2026-07-19T16:17:39.270",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/61848c83b9132ab839809fe415ba7802a0aca4f6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/956b134d917fd7e014dc7e39a9b7610c04fcc9ba"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f7b4513e77f9571dc1041a798b93b5c4a4bfc191"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/fb7f511d62692661846c47f199e0afe25c2982db"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-07T12:45:31+00:00",
      "cve": "CVE-2026-63997",
      "id": "CVE-2026-63997",
      "initial_release_date": "2026-07-19T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ethtool: module: avoid leaking a netdev ref on module flash errors",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63997.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-21T16:48:45Z",
      "cve": "CVE-2026-63997",
      "id": "CVE-2026-63997",
      "initial_release_date": "2026-07-21T13:01:54Z",
      "product_status:known_affected": "452",
      "product_status:known_not_affected": "296",
      "product_status:recommended": "83",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-63997",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-63997.json",
      "version": "8"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.