{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f6927b41d57390c597a126063e2e518911976878"
            },
            {
              "fixed": "4307e05e568782fc92eff651b09ee5dee88a058d"
            },
            {
              "fixed": "0496acc42fb51eee040b5170cec05cec41385540"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31553.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Fix the descriptor address in __kvm_at_swap_desc()\n\nUsing \"(u64 __user *)hva + offset\" to get the virtual addresses of S1/S2\ndescriptors looks really wrong, if offset is not zero. What we want to get\nfor swapping is hva + offset, not hva + offset*8. ;-)\n\nFix it.",
  "id": "CVE-2026-31553",
  "modified": "2026-07-08T05:37:55.839773550Z",
  "published": "2026-04-24T14:35:37.828Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0496acc42fb51eee040b5170cec05cec41385540"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4307e05e568782fc92eff651b09ee5dee88a058d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31553.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31553"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc()"
}