RDMA/nldev: validate dynamic counter attribute length

{
  "id": "3db4deb6a61c3807be8bd1d608f8e9b1ce4dd495b972932e8bf77c1ab311910e",
  "url": "https://osv.dev/vulnerability/CVE-2026-92523",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "RDMA/nldev: validate dynamic counter attribute length",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: validate dynamic counter attribute length RDMA_NLDEV_ATTR_STAT_HWCOUNTERS is a nested attribute whose children are consumed directly with nla_get_u32(). The top-level policy validates only the container, so it does not establish the fixed shape of each child. Require every child payload to be exactly one u32 before reading it.",
    "evidence": "osv:CVE-2026-92523",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.188",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.157",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-92523",
      "aliases": [
        "CVE-2026-92523"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "3c3c1f1416392382faa0238e76a70d7810aab2ef"
                },
                {
                  "fixed": "7828d68ae8cad3463e38def5c91668c84e722596"
                },
                {
                  "fixed": "f8e9315236c8b5155158c6955a758e7960b143e6"
                },
                {
                  "fixed": "d00b0d808ca706a04bd198827319a4a287eff82a"
                },
                {
                  "fixed": "0bfa897e3e1a61d172f95675b353168bc9290312"
                },
                {
                  "fixed": "c57e238b475e8e1e514499772b8c0db5768be93f"
                },
                {
                  "fixed": "74f49255492a62658f36bf2578d7916f1c6ffad1"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92523.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.188"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.157"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.110"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
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                  "fixed": "6.18.52"
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92523.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.669164910Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0bfa897e3e1a61d172f95675b353168bc9290312",
        "https://git.kernel.org/stable/c/74f49255492a62658f36bf2578d7916f1c6ffad1",
        "https://git.kernel.org/stable/c/7828d68ae8cad3463e38def5c91668c84e722596",
        "https://git.kernel.org/stable/c/c57e238b475e8e1e514499772b8c0db5768be93f",
        "https://git.kernel.org/stable/c/d00b0d808ca706a04bd198827319a4a287eff82a",
        "https://git.kernel.org/stable/c/f8e9315236c8b5155158c6955a758e7960b143e6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92523.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-92523",
        "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/2026/92xxx/CVE-2026-92523.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-92523",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 492499,
  "published_at": "2026-09-17T16:10:29.474+00:00"
}