ALSA: ctxfi: Fix missing SPDIFI1 index handling

{
  "id": "f86475af1e679931cea7deb68414d3f1a3cca8be73f33c9059bd9fdc1e0f50e7",
  "url": "https://osv.dev/vulnerability/CVE-2026-31776",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALSA: ctxfi: Fix missing SPDIFI1 index handling",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix missing SPDIFI1 index handling SPDIF1 DAIO type isn't properly handled in daio_device_index() for hw20k2, and it returned -EINVAL, which ended up with the out-of-bounds array access. Follow the hw20k1 pattern and return the proper index for this type, too.",
    "evidence": "osv:CVE-2026-31776",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.19.12",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-31776",
      "aliases": [
        "CVE-2026-31776"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "950decf59d4e978b60a792ce0b3e1555a608f489"
                },
                {
                  "fixed": "b045ab3dff97edae6d538eeff900a34c098761f8"
                }
              ]
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31776.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.12"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31776.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.177711730Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/950decf59d4e978b60a792ce0b3e1555a608f489",
        "https://git.kernel.org/stable/c/b045ab3dff97edae6d538eeff900a34c098761f8",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31776.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31776",
        "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/2026/31xxx/CVE-2026-31776.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31776",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 496919,
  "published_at": "2026-05-01T14:15:04.423+00:00"
}