{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kvm/svm/sev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6aef7cf800098749ff5d660222efaf6e01e98c09",
              "status": "affected",
              "version": "6f38f8c574642a822f2e85f079fa29a49176c49c",
              "versionType": "git"
            },
            {
              "lessThan": "9784e5ca91b37b387f3f414af4340c54f7a63566",
              "status": "affected",
              "version": "6f38f8c574642a822f2e85f079fa29a49176c49c",
              "versionType": "git"
            },
            {
              "lessThan": "12c1f6e03f944e399bd2c88441dca5dc702b95a5",
              "status": "affected",
              "version": "6f38f8c574642a822f2e85f079fa29a49176c49c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kvm/svm/sev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.55",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.9",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SEV: Free have_run_cpus during VM destruction even if VM is no longer SEV\n\nUnconditionally free SEV\u0027s \"have run CPUs\" cpumask in the VM destroy path,\ni.e. even for what appear to be non-SEV VMs, as an SEV VM becomes a non-SEV\nVM if its state is intra-host migrated.  Alternatively, the mask could be\nfreed in sev_migrate_from() when \"converting\" the source VM, but that gets\nannoying because ideally KVM would nullify the mask to guard against UAF,\nand nullifying the mask would need be conditioned on CPUMASK_OFFSTACK=y.\n\nFreeing the mask during sev_migrate_from() is also not robust against other\nKVM bugs, though that\u0027s kind of a moot point since any such bugs would show\nup even if sev-\u003eactive is never set.  I.e. KVM must get that side of things\ncorrect.  But, that\u0027s not a great reason to add more code just to make\nthings marginally less robust."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:20:10.096Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6aef7cf800098749ff5d660222efaf6e01e98c09"
        },
        {
          "url": "https://git.kernel.org/stable/c/9784e5ca91b37b387f3f414af4340c54f7a63566"
        },
        {
          "url": "https://git.kernel.org/stable/c/12c1f6e03f944e399bd2c88441dca5dc702b95a5"
        }
      ],
      "title": "KVM: SEV: Free have_run_cpus during VM destruction even if VM is no longer SEV",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98472",
    "datePublished": "2026-10-18T15:15:24.654Z",
    "dateReserved": "2026-09-25T10:25:14.351Z",
    "dateUpdated": "2026-10-19T09:20:10.096Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}