iio: adc: xilinx-ams: fix out-of-bounds channel lookup in event handling

{
  "id": "a23f3e50832a336dd7f8af497a7462eea2526343d8470216932061f5e5b69b9b",
  "url": "https://osv.dev/vulnerability/CVE-2026-72480",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iio: adc: xilinx-ams: fix out-of-bounds channel lookup in event handling",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: iio: adc: xilinx-ams: fix out-of-bounds channel lookup in event handling ams_event_to_channel() may return a pointer past the end of dev->channels when no matching scan_index is found. This can lead to invalid memory access in ams_handle_event(). Add a bounds check in ams_event_to_channel() and return NULL when no channel is found. Also guard the caller to safely handle this case.",
    "evidence": "osv:CVE-2026-72480",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.1.178",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.145",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.97",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.40",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-72480",
      "aliases": [
        "CVE-2026-72480"
      ],
      "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": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
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                  "fixed": "116d1f8805ae2daadbac89d24da4c0da50b9edae"
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                  "fixed": "1d24f14e049fdd769146dda026496ed23b397ed9"
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                {
                  "fixed": "9ac3675bf875792dced45efbf47116719a7c097b"
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                {
                  "fixed": "3c374d33f1338dbb5676919c5194caa9c5aa1631"
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                  "fixed": "947eb6f0a274f8b15a0248051a65b069effd5057"
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          "database_specific": {
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        {
          "ranges": [
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              "type": "ECOSYSTEM",
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              "type": "ECOSYSTEM",
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                  "introduced": "6.19.0"
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                  "fixed": "7.1.5"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72480.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.975832477Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/116d1f8805ae2daadbac89d24da4c0da50b9edae",
        "https://git.kernel.org/stable/c/1d24f14e049fdd769146dda026496ed23b397ed9",
        "https://git.kernel.org/stable/c/3c374d33f1338dbb5676919c5194caa9c5aa1631",
        "https://git.kernel.org/stable/c/947eb6f0a274f8b15a0248051a65b069effd5057",
        "https://git.kernel.org/stable/c/94d158985b6ea011bdc26186f42d662a156da6cb",
        "https://git.kernel.org/stable/c/9ac3675bf875792dced45efbf47116719a7c097b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72480.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72480",
        "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/2026/72xxx/CVE-2026-72480.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72480",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 501169,
  "published_at": "2026-08-15T05:57:18.975+00:00"
}