---
id: CVE-2026-98732
title: >-
  kernel: Bluetooth: btintel: fix buffer over-read in btintel_hw_error()
  (CVE-2026-98732)
summary: >-
  A flaw was found in the Linux kernel's Intel Bluetooth driver. When processing
  hardware error events, the driver logs event data as a string without
  verifying that the received payload is properly null-terminated. A physically
  proximate at…
severity: low
cvss: 3.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L'
cvssSource: vendor
cwe: CWE-125
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-10-18'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T01:11:16+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98732.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98732.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98732'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2555108'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98732'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98732'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98732.mbox
  - url: 'https://git.kernel.org/stable/c/be58b239d2be5da7a7fac11d3eb8bf75dce6511b'
  - url: 'https://git.kernel.org/stable/c/bbc7de352f3f3864369c904aac944c7de84c6e7b'
  - url: 'https://git.kernel.org/stable/c/c42ce5373405ca93946311652c51ccfeb1c2d913'
  - url: 'https://git.kernel.org/stable/c/673f707518e8ef03306f84c512cb160971f175fe'
  - url: 'https://git.kernel.org/stable/c/40eb4b18ad167b63644c27fa67a7400ba050379a'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00168
epssPercentile: 0.05967
ingestedAt: '2026-10-18T16:47:32.506Z'
---

## Overview

A flaw was found in the Linux kernel's Intel Bluetooth driver. When processing hardware error events, the driver logs event data as a string without verifying that the received payload is properly null-terminated. A physically proximate attacker or compromised Bluetooth device could exploit this flaw by sending malformed error events to trigger a buffer over-read. This issue primarily leads to information disclosure of adjacent kernel memory into system logs, and could potentially result in a Denial of Service (DoS) if the system crashes.

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98732.json)

**kernel: Bluetooth: btintel: fix buffer over-read in btintel_hw_error()** — rated Low by Red Hat. Released 2026-10-18, updated 2026-10-23.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

No fix planned:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7

## Remediation

Fix deferred