---
id: CVE-2026-98580
title: >-
  kernel: nfc: llcp: Fix race condition in accept_queue lifecycle
  (CVE-2026-98580)
summary: >-
  A flaw was found in the Linux kernel's Near Field Communication (NFC) Logical
  Link Control Protocol (LLCP) implementation. A race condition occurs during
  concurrent socket release and connection accept operations due to improper
  lock synch…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-825
vendor: Red Hat
product: Linux
affected:
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    54adcabb0f1deef1bdae5fc64779ed6d442721c9
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    7c938aad5108382c6ad7453c4b5ee8ae3f3252ed
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    d2093a0981138876212bc5f473bdbfba0786e064
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    41256821762a7114906b178826d17098e2fa5992
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    53867f6acb1af7f12d6485fa8a2819318f89083b
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    da8a07757383614a8380a0f7dd54749d2687b82e
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    d5e1c92d09caed19f2988739695ce611a86ba6f8
  - >-
    Linux >= 50b78b2a6500d0e97c204c1b6c51df8c17358bbe <
    c3eef2f988a3db9690369d7cef9a3344dd9788d3
  - Linux 3.7
published: '2026-10-18'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T03:49:41+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98580.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98580.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98580'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2554909'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98580'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98580'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98580.mbox
  - url: 'https://git.kernel.org/stable/c/54adcabb0f1deef1bdae5fc64779ed6d442721c9'
  - url: 'https://git.kernel.org/stable/c/7c938aad5108382c6ad7453c4b5ee8ae3f3252ed'
  - url: 'https://git.kernel.org/stable/c/d2093a0981138876212bc5f473bdbfba0786e064'
  - url: 'https://git.kernel.org/stable/c/41256821762a7114906b178826d17098e2fa5992'
  - url: 'https://git.kernel.org/stable/c/53867f6acb1af7f12d6485fa8a2819318f89083b'
  - url: 'https://git.kernel.org/stable/c/da8a07757383614a8380a0f7dd54749d2687b82e'
  - url: 'https://git.kernel.org/stable/c/d5e1c92d09caed19f2988739695ce611a86ba6f8'
  - url: 'https://git.kernel.org/stable/c/c3eef2f988a3db9690369d7cef9a3344dd9788d3'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00216
epssPercentile: 0.11997
ingestedAt: '2026-10-18T15:45:12.254Z'
---

## Overview

A flaw was found in the Linux kernel's Near Field Communication (NFC) Logical Link Control Protocol (LLCP) implementation. A race condition occurs during concurrent socket release and connection accept operations due to improper lock synchronization. A local attacker could exploit this flaw to cause a use-after-free or null-pointer dereference, leading to a denial of service (DoS) or potentially privilege escalation.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98580.json)

**kernel: nfc: llcp: Fix race condition in accept_queue lifecycle** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.

Not affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Refer to the advisory for fix availability.