CVE-2026-98291 (GCVE-0-2026-98291)
Vulnerability from cvelistv5
Published
2026-10-06 08:45
Modified
2026-10-19 09:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel_pcie: fix off-by-one bounds check in RX submit btintel_pcie_submit_rx() used frbd_index > rxq->count to guard the FRBD array access, allowing frbd_index == rxq->count to pass through and index one element past the end of the array. Change the check to >= rxq->count so every out-of-range index is rejected. This issue was reported by Claude Mythos.
References
Impacted products
Vendor Product Version
Linux Linux Version: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e
Version: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e
Version: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e
Version: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btintel_pcie.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel_pcie: fix off-by-one bounds check in RX submit\n\nbtintel_pcie_submit_rx() used frbd_index \u003e rxq-\u003ecount to guard the\nFRBD array access, allowing frbd_index == rxq-\u003ecount to pass through\nand index one element past the end of the array. Change the check to\n\u003e= rxq-\u003ecount so every out-of-range index is rejected.\n\nThis issue was reported by Claude Mythos."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:17:02.456Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b5214d72bfdf8ef7744d0c8147e6ebb09b36b259"
        },
        {
          "url": "https://git.kernel.org/stable/c/18464860ce27af0dccd2fc72830610b85b518cff"
        },
        {
          "url": "https://git.kernel.org/stable/c/de4c3c72bcc6e8474f70c22427f94ca44bccd890"
        },
        {
          "url": "https://git.kernel.org/stable/c/2ea5a87a5a7ae58cb2662b8a7d06f209383e1765"
        }
      ],
      "title": "Bluetooth: btintel_pcie: fix off-by-one bounds check in RX submit",
      "x_generator": {
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98291",
    "datePublished": "2026-10-06T08:45:51.021Z",
    "dateReserved": "2026-09-25T10:25:14.336Z",
    "dateUpdated": "2026-10-19T09:17:02.456Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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