---
id: CVE-2026-98291
title: |-
  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_i…
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_i…
severity: high
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <
    b5214d72bfdf8ef7744d0c8147e6ebb09b36b259
  - >-
    Linux >= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <
    18464860ce27af0dccd2fc72830610b85b518cff
  - >-
    Linux >= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <
    de4c3c72bcc6e8474f70c22427f94ca44bccd890
  - >-
    Linux >= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <
    2ea5a87a5a7ae58cb2662b8a7d06f209383e1765
  - Linux 6.10
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T09:18:19.467'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98291'
references:
  - url: 'https://git.kernel.org/stable/c/18464860ce27af0dccd2fc72830610b85b518cff'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2ea5a87a5a7ae58cb2662b8a7d06f209383e1765'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b5214d72bfdf8ef7744d0c8147e6ebb09b36b259'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/de4c3c72bcc6e8474f70c22427f94ca44bccd890'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98291.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98291'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2546501'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98291'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98291'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98291.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-10-06T08:50:17.416Z'
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: vendor
cwe:
  - CWE-193
epss: 0.00168
epssPercentile: 0.06045
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-10 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98291.json)