{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: kvm: fix vector context allocation leak\n\nWhen the second kzalloc (host_context.vector.datap) fails in\nkvm_riscv_vcpu_alloc_vector_context, the first allocation\n(guest_context.vector.datap) is leaked. Free it before returning."
    }
  ],
  "id": "CVE-2026-46171",
  "lastModified": "2026-05-28T13:44:01.663",
  "metrics": {},
  "published": "2026-05-28T10:16:32.740",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1d57ab45ec5c0e22789de793bcf2a31ad6fb7d98"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b7c958d7c1eb1cb9b2be7b5ee4129fcd66cec978"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bd62c0f61bc722a097417401030c596cea8e21aa"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-46171"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:32Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: kvm: fix vector context allocation leak\n\nWhen the second kzalloc (host_context.vector.datap) fails in\nkvm_riscv_vcpu_alloc_vector_context, the first allocation\n(guest_context.vector.datap) is leaked. Free it before returning.",
  "id": "GHSA-wxj9-x4vw-8w2j",
  "modified": "2026-05-28T12:30:31Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46171"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d57ab45ec5c0e22789de793bcf2a31ad6fb7d98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7c958d7c1eb1cb9b2be7b5ee4129fcd66cec978"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd62c0f61bc722a097417401030c596cea8e21aa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
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    "notes": [
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        "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": {
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      "contact_details": "secure@microsoft.com",
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      "namespace": "https://msrc.microsoft.com"
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    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-46171 riscv: kvm: fix vector context allocation leak - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46171.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": "riscv: kvm: fix vector context allocation leak",
    "tracking": {
      "current_release_date": "2026-05-29T01:05:11.000Z",
      "generator": {
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        "engine": {
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      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-29T01:05:11.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
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  "product_tree": {
    "branches": [
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              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
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            ],
            "category": "product_name",
            "name": "Azure Linux"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-46171",
      "notes": [
        {
          "category": "general",
          "text": "Linux",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
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      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-46171 riscv: kvm: fix vector context allocation leak - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46171.json"
        }
      ],
      "title": "riscv: kvm: fix vector context allocation leak"
    }
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}