{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nSVM: Always use NextRIP as vmcb02\u0027s NextRIP after first L2 VMRUN\n\nFor guests with NRIPS disabled, L1 does not provide NextRIP when running\nan L2 with an injected soft interrupt, instead it advances the current RIP\nbefore running it. KVM uses the current RIP as the NextRIP in vmcb02 to\nemulate a CPU without NRIPS.\n\nHowever, after L2 runs the first time, NextRIP will be updated by the CPU\nand/or KVM, and the current RIP is no longer the correct value to use in\nvmcb02.  Hence, after save/restore, use the current RIP if and only if a\nnested run is pending, otherwise use NextRIP.  Give soft_int_next_rip the\nsame treatment, as it\u0027s the same logic, just for a narrower use case.\n\n[sean: give soft_int_next_rip the same treatment]"
    }
  ],
  "id": "CVE-2026-46059",
  "lastModified": "2026-05-27T14:48:03.013",
  "metrics": {},
  "published": "2026-05-27T14:17:25.650",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3428ed1529a1af4cce5aff6c5bd2fcc39ad726bb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/69fe1411a5ce678b4da6489b5d2282b4e1d13acf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8d397582f6b5e9fbcf09781c7c934b4910e94a50"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-46059"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:25Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nSVM: Always use NextRIP as vmcb02\u0027s NextRIP after first L2 VMRUN\n\nFor guests with NRIPS disabled, L1 does not provide NextRIP when running\nan L2 with an injected soft interrupt, instead it advances the current RIP\nbefore running it. KVM uses the current RIP as the NextRIP in vmcb02 to\nemulate a CPU without NRIPS.\n\nHowever, after L2 runs the first time, NextRIP will be updated by the CPU\nand/or KVM, and the current RIP is no longer the correct value to use in\nvmcb02.  Hence, after save/restore, use the current RIP if and only if a\nnested run is pending, otherwise use NextRIP.  Give soft_int_next_rip the\nsame treatment, as it\u0027s the same logic, just for a narrower use case.\n\n[sean: give soft_int_next_rip the same treatment]",
  "id": "GHSA-fhch-vffp-hj8x",
  "modified": "2026-05-27T15:33:22Z",
  "published": "2026-05-27T15:33:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46059"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3428ed1529a1af4cce5aff6c5bd2fcc39ad726bb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69fe1411a5ce678b4da6489b5d2282b4e1d13acf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d397582f6b5e9fbcf09781c7c934b4910e94a50"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-46059 KVM: nSVM: Always use NextRIP as vmcb02\u0027s NextRIP after first L2 VMRUN - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46059.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "KVM: nSVM: Always use NextRIP as vmcb02\u0027s NextRIP after first L2 VMRUN",
    "tracking": {
      "current_release_date": "2026-05-28T14:46:24.000Z",
      "generator": {
        "date": "2026-05-29T07:23:45.789Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-46059",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-28T01:03:36.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-05-28T14:46:24.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "azl3 kernel 0:6.6.139.1-1.azl3",
                "product": {
                  "name": "azl3 kernel 0:6.6.139.1-1.azl3",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "kernel"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 kernel 0:6.6.139.1-1.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-46059",
      "notes": [
        {
          "category": "general",
          "text": "Linux",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "known_affected": [
          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-46059 KVM: nSVM: Always use NextRIP as vmcb02\u0027s NextRIP after first L2 VMRUN - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46059.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-05-28T01:03:36.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-1"
          ]
        }
      ],
      "title": "KVM: nSVM: Always use NextRIP as vmcb02\u0027s NextRIP after first L2 VMRUN"
    }
  ]
}