vdpa: Add features attr to vdpa_nl_policy for nlattr length check

{
  "id": "d312413d5da77c5ff5bb310d2987761e0254b76a683a373f49571ae58258cddb",
  "url": "https://osv.dev/vulnerability/CVE-2023-53652",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vdpa: Add features attr to vdpa_nl_policy for nlattr length check",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: vdpa: Add features attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa features attr to avoid such bugs.",
    "evidence": "osv:CVE-2023-53652",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.47",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.4.12",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-53652",
      "aliases": [
        "CVE-2023-53652"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "90fea5a800c3dd80fb8ad9a02929bcef5fde42b8"
                },
                {
                  "fixed": "44b508cc96889e61799cc0fc6c00766a54f3ab5a"
                },
                {
                  "fixed": "645d17e06c502e71b880b2b854930e5a64014640"
                },
                {
                  "fixed": "79c8651587504ba263d2fd67fd4406240fb21f69"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53652.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.1.0"
                },
                {
                  "fixed": "6.1.47"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.4.12"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53652.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.540660043Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/44b508cc96889e61799cc0fc6c00766a54f3ab5a",
        "https://git.kernel.org/stable/c/645d17e06c502e71b880b2b854930e5a64014640",
        "https://git.kernel.org/stable/c/79c8651587504ba263d2fd67fd4406240fb21f69",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53652.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53652",
        "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/2023/53xxx/CVE-2023-53652.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53652",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 490816,
  "published_at": "2025-10-07T15:19:48.628+00:00"
}