Vulnerability-Lookup

GHSA-7R69-VGP4-2564

Vulnerability from github – Published: 2026-10-06 09:31 – Updated: 2026-10-06 09:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98291"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-06T09:18:19Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-7r69-vgp4-2564",
  "modified": "2026-10-06T09:31:33Z",
  "published": "2026-10-06T09:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98291"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18464860ce27af0dccd2fc72830610b85b518cff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ea5a87a5a7ae58cb2662b8a7d06f209383e1765"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5214d72bfdf8ef7744d0c8147e6ebb09b36b259"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de4c3c72bcc6e8474f70c22427f94ca44bccd890"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-98291 (GCVE-0-2026-98291)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:45 – Updated: 2026-10-06 08:45

Title

Bluetooth: btintel_pcie: fix off-by-one bounds check in RX submit

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.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 54/100 over 6633 records in the last 180 days details

References

4 references

URL	Tags
https://git.kernel.org/stable/c/b5214d72bfdf8ef77…
https://git.kernel.org/stable/c/18464860ce27af0dc…
https://git.kernel.org/stable/c/de4c3c72bcc6e8474…
https://git.kernel.org/stable/c/2ea5a87a5a7ae58cb…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e , < b5214d72bfdf8ef7744d0c8147e6ebb09b36b259 (git) Affected: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e , < 18464860ce27af0dccd2fc72830610b85b518cff (git) Affected: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e , < de4c3c72bcc6e8474f70c22427f94ca44bccd890 (git) Affected: c2b636b3f788d10486a6691ad6dd3ec4c93bd78e , < 2ea5a87a5a7ae58cb2662b8a7d06f209383e1765 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.112 , ≤ 6.12.* (semver) Unaffected: 6.18.54 , ≤ 6.18.* (semver) Unaffected: 7.2.8 , ≤ 7.2.* (semver) Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)

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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": [
            {
              "lessThan": "b5214d72bfdf8ef7744d0c8147e6ebb09b36b259",
              "status": "affected",
              "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
              "versionType": "git"
            },
            {
              "lessThan": "18464860ce27af0dccd2fc72830610b85b518cff",
              "status": "affected",
              "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
              "versionType": "git"
            },
            {
              "lessThan": "de4c3c72bcc6e8474f70c22427f94ca44bccd890",
              "status": "affected",
              "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
              "versionType": "git"
            },
            {
              "lessThan": "2ea5a87a5a7ae58cb2662b8a7d06f209383e1765",
              "status": "affected",
              "version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btintel_pcie.c"
          ],
          "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"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.112",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.54",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.8",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc4",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "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": "2026-10-06T08:45:51.021Z",
        "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": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98291",
    "datePublished": "2026-10-06T08:45:51.021Z",
    "dateReserved": "2026-09-25T10:25:14.336Z",
    "dateUpdated": "2026-10-06T08:45:51.021Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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GHSA-7R69-VGP4-2564

CVE-2026-98291 (GCVE-0-2026-98291)

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