---
id: CVE-2026-74539
title: 'Bluetooth: ISO: lock sk in iso_sock_getname'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  Bluetooth: ISO: lock sk in iso_sock_getname

  Accessing iso_pi(sk)->conn requires lock_sock, which is not held here.

  Fix by adding the lock/release.
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 2df108c227b266a9ec9e3fda3828d2ac9662aa33 <
    72d5bb1d77d7c3330146dc0cfd43f704c64b9594
  - >-
    Linux >= 2df108c227b266a9ec9e3fda3828d2ac9662aa33 <
    202670e6602e068558c1fca2df40719ee91a2906
  - >-
    Linux >= 2df108c227b266a9ec9e3fda3828d2ac9662aa33 <
    89cf154d7c18e6e94a3da83051f3cf2bac317ae2
  - Linux 6.16
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:59:39.142927Z'
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:05:54.465Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-74539'
references:
  - url: 'https://git.kernel.org/stable/c/72d5bb1d77d7c3330146dc0cfd43f704c64b9594'
  - url: 'https://git.kernel.org/stable/c/202670e6602e068558c1fca2df40719ee91a2906'
  - url: 'https://git.kernel.org/stable/c/89cf154d7c18e6e94a3da83051f3cf2bac317ae2'
tags:
  - cve.org
epss: 0.00385
epssPercentile: 0.30988
ingestedAt: '2026-10-16T19:46:24.345Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: ISO: lock sk in iso_sock_getname

Accessing iso_pi(sk)->conn requires lock_sock, which is not held here.

Fix by adding the lock/release.

## Affected

- `Linux >= 2df108c227b266a9ec9e3fda3828d2ac9662aa33 < 72d5bb1d77d7c3330146dc0cfd43f704c64b9594`
- `Linux >= 2df108c227b266a9ec9e3fda3828d2ac9662aa33 < 202670e6602e068558c1fca2df40719ee91a2906`
- `Linux >= 2df108c227b266a9ec9e3fda3828d2ac9662aa33 < 89cf154d7c18e6e94a3da83051f3cf2bac317ae2`
- `Linux 6.16`

## Remediation

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