KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0

{
  "id": "2054e2d88279f655450f3590d226b85dd7fc087e1c4172c7793060cf3e7a9793",
  "url": "https://osv.dev/vulnerability/CVE-2026-46082",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to properly inject #UD when EFER.SVME=0. [sean: tag for stable@]",
    "evidence": "osv:CVE-2026-46082",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.209",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.175",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.140",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.86",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.27",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-46082",
      "aliases": [
        "CVE-2026-46082"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ff092385e8285c03d8b148f42f46f98c5f4becd5"
                },
                {
                  "fixed": "ebb63390142c6458fc37758e0892759989cc159f"
                },
                {
                  "fixed": "491139c17f8ad5773303068411f6ac5eed438b51"
                },
                {
                  "fixed": "3ac9d4241d205f5d0df06358349ca718ebb0fa12"
                },
                {
                  "fixed": "643125b66ffc1147c66616b749475ba9efb15971"
                },
                {
                  "fixed": "c15392ed9e49c1a16b4d3a3ccf1b3bf2318a6c28"
                },
                {
                  "fixed": "ee24928ecd85db4b68ed111e91fef36af0ca37b0"
                },
                {
                  "fixed": "d99df02ff427f461102230f9c5b90a6c64ee8e23"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46082.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.32"
                },
                {
                  "fixed": "5.15.209"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.175"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.140"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.86"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.27"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46082.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.338097157Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3ac9d4241d205f5d0df06358349ca718ebb0fa12",
        "https://git.kernel.org/stable/c/491139c17f8ad5773303068411f6ac5eed438b51",
        "https://git.kernel.org/stable/c/643125b66ffc1147c66616b749475ba9efb15971",
        "https://git.kernel.org/stable/c/c15392ed9e49c1a16b4d3a3ccf1b3bf2318a6c28",
        "https://git.kernel.org/stable/c/d99df02ff427f461102230f9c5b90a6c64ee8e23",
        "https://git.kernel.org/stable/c/ebb63390142c6458fc37758e0892759989cc159f",
        "https://git.kernel.org/stable/c/ee24928ecd85db4b68ed111e91fef36af0ca37b0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46082.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46082",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46082.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-46082",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 509780,
  "published_at": "2026-05-27T12:58:21.629+00:00"
}