wifi: ath12k: Fix peer lookup in ath12k_dp_mon_rx_deliver_msdu()

{
  "id": "4ac2c7bcf2003058cbc3c8a74da2caf0518dedd669841580bb73c3f8c47eff13",
  "url": "https://osv.dev/vulnerability/CVE-2025-40131",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: ath12k: Fix peer lookup in ath12k_dp_mon_rx_deliver_msdu()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix peer lookup in ath12k_dp_mon_rx_deliver_msdu() In ath12k_dp_mon_rx_deliver_msdu(), peer lookup fails because rxcb->peer_id is not updated with a valid value. This is expected in monitor mode, where RX frames bypass the regular RX descriptor path that typically sets rxcb->peer_id. As a result, the peer is NULL, and link_id and link_valid fields in the RX status are not populated. This leads to a WARN_ON in mac80211 when it receives data frame from an associated station with invalid link_id. Fix this potential issue by using ppduinfo->peer_id, which holds the correct peer id for the received frame. This ensures that the peer is correctly found and the associated link metadata is updated accordingly. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1",
    "evidence": "osv:CVE-2025-40131",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.17.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-40131",
      "aliases": [
        "CVE-2025-40131"
      ],
      "affected": [
        {
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          "versions": [
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            "v6.15.10",
            "v6.15.9",
            "v6.15.8",
            "v6.15.7",
            "v6.15.6",
            "v6.15.5",
            "v6.15.4",
            "v6.15.3"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40131.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.16.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40131.json"
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      ],
      "modified": "2026-10-28T02:30:26.317579315Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/7ca61ed8b3f3fc9a7decd68039cb1d7d1238c566",
        "https://git.kernel.org/stable/c/da64eb2da76ce5626238a951fdf3e81810454427",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40131.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-40131",
        "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/2025/40xxx/CVE-2025-40131.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-40131",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 493042,
  "published_at": "2025-11-12T10:23:21.879+00:00"
}