media: rkvdec: bound HEVC tile loops and PPS id to the array capacity

{
  "id": "d5968881ed42e1c0619c221f066c54f8296415b4239d5ba1f3b05236a7f94fd6",
  "url": "https://osv.dev/vulnerability/CVE-2026-97580",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "media: rkvdec: bound HEVC tile loops and PPS id to the array capacity",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: media: rkvdec: bound HEVC tile loops and PPS id to the array capacity compute_tiles_uniform() and compute_tiles_non_uniform() loop over num_tile_columns_minus1 + 1 / num_tile_rows_minus1 + 1 entries, and assemble_hw_pps() writes one COLUMN_WIDTH / ROW_HEIGHT register per tile and indexes priv_tbl->param_set[] by pic_parameter_set_id, all taken from the untrusted PPS. Use the bounded v4l2_hevc_pps_num_tile_columns() / v4l2_hevc_pps_num_tile_rows() helpers for the tile loops, and bail out of assemble_hw_pps() before indexing priv_tbl->param_set[] with an out-of-range pic_parameter_set_id, so the writes stay within the hardware tables.",
    "evidence": "osv:CVE-2026-97580",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.2.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-97580",
      "aliases": [
        "CVE-2026-97580"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3595375c2301653d5440d54b396df03499686c20"
                },
                {
                  "fixed": "03beb248d8a7bab30559a60d4df81f167e63b9e3"
                },
                {
                  "fixed": "81ad46bb33d8fd279aaa33af5296c648814c964b"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97580.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97580.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.177090280Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/03beb248d8a7bab30559a60d4df81f167e63b9e3",
        "https://git.kernel.org/stable/c/81ad46bb33d8fd279aaa33af5296c648814c964b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97580.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-97580",
        "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/2026/97xxx/CVE-2026-97580.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-97580",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518622,
  "published_at": "2026-09-25T10:22:01.832+00:00"
}