ptp: ocp: Fix board ID over-read

{
  "id": "949817a96f13dab544ec9e443cec7344c997bb437766828db231f98c3904023c",
  "url": "https://osv.dev/vulnerability/CVE-2026-74603",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ptp: ocp: Fix board ID over-read",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Fix board ID over-read The EEPROM board ID is a fixed 13-byte field and is not guaranteed to contain a NUL terminator. Passing it directly to devlink_info_version_fixed_put() treats it as a C string and may read beyond the field. Format at most OCP_BOARD_ID_LEN bytes into the existing local buffer before reporting the ID. Use a precision limit because the snprintf() output size alone does not bound the source string scan.",
    "evidence": "osv:CVE-2026-74603",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.183",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.152",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.104",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.45",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-74603",
      "aliases": [
        "CVE-2026-74603"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4"
                },
                {
                  "fixed": "72ef3ce80078199bfad32f98d055f44ba7cd0c3d"
                },
                {
                  "fixed": "3d965811be78473654e6e8cc8e4fb7b6b87aa6c1"
                },
                {
                  "fixed": "f92558bbe78d6284fedd053900f82a70f0aa8707"
                },
                {
                  "fixed": "5fd91dd4a143479b0575fb1f202ec1c501e71fd5"
                },
                {
                  "fixed": "f8d7e5751267637190eff887c971d5b468106213"
                },
                {
                  "fixed": "6b69f2ef10cdb018c0b127a7cab88e590bbddba4"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74603.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
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                {
                  "fixed": "6.1.183"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.152"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.104"
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.13.0"
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                  "fixed": "6.18.45"
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            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.9"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74603.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:34.700542062Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3d965811be78473654e6e8cc8e4fb7b6b87aa6c1",
        "https://git.kernel.org/stable/c/5fd91dd4a143479b0575fb1f202ec1c501e71fd5",
        "https://git.kernel.org/stable/c/6b69f2ef10cdb018c0b127a7cab88e590bbddba4",
        "https://git.kernel.org/stable/c/72ef3ce80078199bfad32f98d055f44ba7cd0c3d",
        "https://git.kernel.org/stable/c/f8d7e5751267637190eff887c971d5b468106213",
        "https://git.kernel.org/stable/c/f92558bbe78d6284fedd053900f82a70f0aa8707",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74603.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-74603",
        "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/2026/74xxx/CVE-2026-74603.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-74603",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 502094,
  "published_at": "2026-08-22T15:31:51.544+00:00"
}