{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e0b67035a90b58d01f911fed77b6e3da153da66e"
            },
            {
              "fixed": "5a5cfd8488c97e1b8939515429fe4c81e9f2df4f"
            },
            {
              "fixed": "8879e3e0a84a86954c855caceead4867e74a9a27"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1.0"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98292.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btmtksdio, btmtkuart: validate WMT event length before struct access\n\nbtmtksdio.c and btmtkuart.c cast a received WMT event straight to\nstruct btmtk_hci_wmt_evt and read its op/flag fields without checking\nthe event is long enough to contain them, unlike btmtk.c. The\nFUNC_CTRL case then further casts to struct btmtk_hci_wmt_evt_funcc\nand reads its 2-byte status field, again without a length check.\nFirmware that sends a short or malformed WMT event makes both drivers\nread past the end of the received SKB.\n\nMirror btmtk.c: validate the base WMT header with skb_pull_data()\nbefore touching any of its fields, and when a FUNC_CTRL event turns\nout to be the short, header-only form (a plain enable/disable ack\nwith no status word), decode the result from the header's own flag\nbyte instead (0 = success, otherwise failure).\n\nVerified setup on MT7920, MT7921, MT7922 and MT7925: no regression.",
  "id": "CVE-2026-98292",
  "modified": "2026-10-07T02:30:43.444220269Z",
  "published": "2026-10-06T08:45:51.807Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a5cfd8488c97e1b8939515429fe4c81e9f2df4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8879e3e0a84a86954c855caceead4867e74a9a27"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98292.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98292"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Bluetooth: btmtksdio, btmtkuart: validate WMT event length before struct access"
}