CVE-2026-68410 (GCVE-0-2026-68410)
Vulnerability from cvelistv5
Published
2026-08-10 12:04
Modified
2026-08-19 16:35
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
Impacted products
Vendor Product Version
Linux Linux Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
Version: 1dfba3060fe7ee03ccec25a91d35085142dfc295
 Create a notification for this product.
Show details on NVD website

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"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.