Vulnerability-Lookup

FKIE_CVE-2026-68410

Vulnerability from fkie_nvd - Published: 2026-08-10 13:20 - Updated: 2026-08-19 17:20

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in helper_firmware_cb() helper_firmware_cb() neglects to free the single-stage firmware image after a successful async load, leading to a memory leak in the USB firmware-download path. Fix this memory leak by calling release_firmware() immediately after lbs_fw_loaded() returns. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in the current wireless tree. An x86_64 allyesconfig build showed no new warnings. As we do not have compatible Libertas USB hardware for exercising this firmware-download path, no runtime testing was able to be performed.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/libertas/firmware.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6c1f54a04813676c5a2150d99331c8d21f199374",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "ce829286f4935f1eb6b5dcb64da02910ce149c76",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "d497b7566e74920acfe283dd6b2cbf1682890796",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "6cda91bbb8dc3d22ef0323008a12dcf73a5129da",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "644640cde2fb216e6567de5eee780a38dbc95928",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "63c2391deefb31e1b801b7f32bd502ca4808639b",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/libertas/firmware.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.13"
            },
            {
              "lessThan": "3.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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\nwifi: libertas: fix memory leak in helper_firmware_cb()\n\nhelper_firmware_cb() neglects to free the single-stage firmware image\nafter a successful async load, leading to a memory leak in the USB\nfirmware-download path.\n\nFix this memory leak by calling release_firmware() immediately after\nlbs_fw_loaded() returns.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still present in\nthe current wireless tree.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\ncompatible Libertas USB hardware for exercising this firmware-download\npath, no runtime testing was able to be performed."
    }
  ],
  "id": "CVE-2026-68410",
  "lastModified": "2026-08-19T17:20:48.683",
  "metrics": {},
  "published": "2026-08-10T13:20:34.660",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-68410 (GCVE-0-2026-68410)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:04 – Updated: 2026-08-19 16:35

Title

wifi: libertas: fix memory leak in helper_firmware_cb()

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/6c1f54a04813676c5…
https://git.kernel.org/stable/c/7f28722b3e4e0c8d4…
https://git.kernel.org/stable/c/ce829286f4935f1eb…
https://git.kernel.org/stable/c/d497b7566e74920ac…
https://git.kernel.org/stable/c/eaeb1d74a47fc4864…
https://git.kernel.org/stable/c/6cda91bbb8dc3d22e…
https://git.kernel.org/stable/c/644640cde2fb216e6…
https://git.kernel.org/stable/c/63c2391deefb31e1b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 6c1f54a04813676c5a2150d99331c8d21f199374 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < ce829286f4935f1eb6b5dcb64da02910ce149c76 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < d497b7566e74920acfe283dd6b2cbf1682890796 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 6cda91bbb8dc3d22ef0323008a12dcf73a5129da (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 644640cde2fb216e6567de5eee780a38dbc95928 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 63c2391deefb31e1b801b7f32bd502ca4808639b (git)
Linux	Linux	Affected: 3.13 Unaffected: 0 , < 3.13 (semver) Unaffected: 5.10.265 , ≤ 5.10.* (semver) Unaffected: 5.15.216 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/libertas/firmware.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6c1f54a04813676c5a2150d99331c8d21f199374",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "ce829286f4935f1eb6b5dcb64da02910ce149c76",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "d497b7566e74920acfe283dd6b2cbf1682890796",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "6cda91bbb8dc3d22ef0323008a12dcf73a5129da",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "644640cde2fb216e6567de5eee780a38dbc95928",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            },
            {
              "lessThan": "63c2391deefb31e1b801b7f32bd502ca4808639b",
              "status": "affected",
              "version": "1dfba3060fe7ee03ccec25a91d35085142dfc295",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/libertas/firmware.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.13"
            },
            {
              "lessThan": "3.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.265",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.216",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.183",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.148",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.101",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.42",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.6",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix memory leak in helper_firmware_cb()\n\nhelper_firmware_cb() neglects to free the single-stage firmware image\nafter a successful async load, leading to a memory leak in the USB\nfirmware-download path.\n\nFix this memory leak by calling release_firmware() immediately after\nlbs_fw_loaded() returns.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still present in\nthe current wireless tree.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\ncompatible Libertas USB hardware for exercising this firmware-download\npath, no runtime testing was able to be performed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:35:04.634Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76"
        },
        {
          "url": "https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796"
        },
        {
          "url": "https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c"
        },
        {
          "url": "https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da"
        },
        {
          "url": "https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928"
        },
        {
          "url": "https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b"
        }
      ],
      "title": "wifi: libertas: fix memory leak in helper_firmware_cb()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68410",
    "datePublished": "2026-08-10T12:04:30.194Z",
    "dateReserved": "2026-07-30T09:28:09.390Z",
    "dateUpdated": "2026-08-19T16:35:04.634Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

FKIE_CVE-2026-68410

CVE-2026-68410 (GCVE-0-2026-68410)

Tags

Sightings

Nomenclature