---
id: CVE-2026-80914
title: >-
  kernel: Bluetooth: ISO: fix use-after-free of listener socket in
  iso_conn_ready (CVE-2026-80914)
summary: >-
  A flaw was found in the Bluetooth ISO subsystem of the Linux kernel. A
  use-after-free vulnerability can occur in the `iso_conn_ready()` function if a
  listener socket is closed concurrently while a child socket is being created.
  This can le…
severity: high
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-825
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-09-09'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T11:32:59+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80914.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80914.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80914'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2531055'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80914'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80914'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80914.mbox
  - url: 'https://git.kernel.org/stable/c/1702f12cf59a1c3b670eb6bb4a4d6fcccf07e3b8'
  - url: 'https://git.kernel.org/stable/c/d47b8f8c02a3d3f282693e5a4ff1f6b4b00518de'
  - url: 'https://git.kernel.org/stable/c/2387cd06a2c0b416f05028b02bba1089f54c28d9'
  - url: 'https://git.kernel.org/stable/c/49fd7116f76b860b230843700fb7423ab5331e1f'
  - url: 'https://git.kernel.org/stable/c/03288b7447c9e572f8ab82fc29cfb4ca719ab210'
  - url: 'https://git.kernel.org/stable/c/560bef609fa5992745929e8d7d458b9d88dd2830'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00232
epssPercentile: 0.14004
scores:
  vendor: 7
  cna: 8.8
ingestedAt: '2026-09-14T15:23:07.456Z'
---

## Overview

A flaw was found in the Bluetooth ISO subsystem of the Linux kernel. A use-after-free vulnerability can occur in the `iso_conn_ready()` function if a listener socket is closed concurrently while a child socket is being created. This can lead to a dangling pointer being dereferenced upon a later disconnect of the child socket, potentially causing system instability or a denial of service.

## 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 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80914.json)

**kernel: Bluetooth: ISO: fix use-after-free of listener socket in iso_conn_ready** — rated Moderate by Red Hat. Released 2026-09-09, updated 2026-10-20.

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

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat OpenShift Container Platform 4

## Remediation

Affected