{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/liveupdate.h",
            "kernel/liveupdate/luo_flb.c",
            "lib/tests/liveupdate.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "725ada0273a0f48a67fd59cc518d7f8055fe3d5c",
              "status": "affected",
              "version": "cab056f2aae7250af50e503b81a80dfc567a1acd",
              "versionType": "git"
            },
            {
              "lessThan": "d8e47bd066d7e626f9f45d416182d585b7e18b9b",
              "status": "affected",
              "version": "cab056f2aae7250af50e503b81a80dfc567a1acd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/liveupdate.h",
            "kernel/liveupdate/luo_flb.c",
            "lib/tests/liveupdate.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "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": "7.1.5",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nliveupdate: Reference count incoming FLB data\n\nIncrement the incoming FLB refcount in liveupdate_flb_get_incoming() so\nthat the FLB structure cannot be freed while the caller is actively using\nit. Add an additional liveupdate_flb_put_incoming() function so the\ncaller can explicitly indicate when it is done using the FLB data.\n\nDuring a Live Update, a subsystem might need to hold onto the incoming\nFile-Lifecycle-Bound (FLB) data for an extended period, such as during\ndevice enumeration. Incrementing the reference count guarantees that the\ndata remains valid and accessible until the subsystem releases it,\npreventing future use-after-free bugs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:53.841Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/725ada0273a0f48a67fd59cc518d7f8055fe3d5c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d8e47bd066d7e626f9f45d416182d585b7e18b9b"
        }
      ],
      "title": "liveupdate: Reference count incoming FLB data",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80642",
    "datePublished": "2026-08-28T06:48:53.841Z",
    "dateReserved": "2026-08-26T14:34:25.778Z",
    "dateUpdated": "2026-08-28T06:48:53.841Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}