{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "77ee70a073575977b403e9add25f185d614217d8"
            },
            {
              "fixed": "09f35145f3a4aacea4d9b914ad895bf5af8fc4ae"
            },
            {
              "fixed": "29227821e2320ff6a174c91742b4ce221fe8d563"
            },
            {
              "fixed": "e2cb1f4578625e71f461d5c1ce70984193389cbb"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.17.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80873.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions\n\nkvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions\nbut not for SError. enter_exception64() does not write ESR_ELx for any\nexception type, so the constructed syndrome is dropped. A guest L2\nhypervisor taking a nested SError observes stale ESR_EL2.\n\nThis affects both kvm_inject_nested_serror() and the EASE path in\nkvm_inject_nested_sea().\n\nWrite ESR_EL2 for except_type_serror, matching except_type_sync.",
  "id": "CVE-2026-80873",
  "modified": "2026-09-06T03:30:58.829546676Z",
  "published": "2026-09-04T16:48:40.889Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09f35145f3a4aacea4d9b914ad895bf5af8fc4ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29227821e2320ff6a174c91742b4ce221fe8d563"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2cb1f4578625e71f461d5c1ce70984193389cbb"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80873.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80873"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions"
}