{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "tools/testing/cxl/test/cxl_translate.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8c4f27a7f364eab514d2fa55c11f39d505122f1b",
              "status": "affected",
              "version": "06377c54a133621d61fa76cdcea85077c5b958f4",
              "versionType": "git"
            },
            {
              "lessThan": "08326b92c7a414a73b5b308d1daf0e91e0134dfc",
              "status": "affected",
              "version": "06377c54a133621d61fa76cdcea85077c5b958f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "tools/testing/cxl/test/cxl_translate.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "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": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/test: Fix __fortify_panic\n\nFix a runtime assertion in setup_xor_mapping(). Fortify complains that it\nis potentially overflowing the xormaps array per __counted_by(nr_maps).\nQuiet the false positive by initializing @nr_maps earlier.\n\n memcpy: detected buffer overflow: 32 byte write of buffer size 0\n WARNING: lib/string_helpers.c:1036 at __fortify_report+0x4d/0xa0, CPU#8: modprobe/2728\n Call Trace:\n  __fortify_panic+0xd/0xf\n  setup_xor_mapping+0x6c/0xa0 [cxl_translate]\n\n[ dj: Fixed up @nr_entries to @nr_maps in commit log. ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:52.045Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8c4f27a7f364eab514d2fa55c11f39d505122f1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/08326b92c7a414a73b5b308d1daf0e91e0134dfc"
        }
      ],
      "title": "cxl/test: Fix __fortify_panic",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80639",
    "datePublished": "2026-08-28T06:48:52.045Z",
    "dateReserved": "2026-08-26T14:34:25.777Z",
    "dateUpdated": "2026-08-28T06:48:52.045Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}