---
id: CVE-2026-80801
title: 'nfc: microread: validate target discovery payload lengths'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  nfc: microread: validate target discovery payload lengths

  microread_target_discovered() parses target discovery payloads from
  skb->data according to the HCI gate. The …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    c6de4241f2efbbab286efbb84a9c7190298b3052
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    92a6f0201bb68391b5eba1b3f330af007d7323b6
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    cb298672282421159e53ab311fe49d204c8a52da
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    18f02354ed229b8e4561b580812d026e7eb29c85
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    e6397fe7b8b5ef18e051f49612d40ff476c5f7d9
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    d0902a7c454326c6384c614226ab8987f3fd425d
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    dabfa26a208e56f4d8dbf26fddc48f188bdb0649
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    953963b9ac5eecbb316617d337bfaa3d731e3c5e
  - >-
    Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c <
    25519469972ef57c3edb1805dabd6c5612b90211
  - Linux 3.9
published: '2026-09-04'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:43:54.522Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80801'
references:
  - url: 'https://git.kernel.org/stable/c/c6de4241f2efbbab286efbb84a9c7190298b3052'
  - url: 'https://git.kernel.org/stable/c/92a6f0201bb68391b5eba1b3f330af007d7323b6'
  - url: 'https://git.kernel.org/stable/c/cb298672282421159e53ab311fe49d204c8a52da'
  - url: 'https://git.kernel.org/stable/c/18f02354ed229b8e4561b580812d026e7eb29c85'
  - url: 'https://git.kernel.org/stable/c/e6397fe7b8b5ef18e051f49612d40ff476c5f7d9'
  - url: 'https://git.kernel.org/stable/c/d0902a7c454326c6384c614226ab8987f3fd425d'
  - url: 'https://git.kernel.org/stable/c/dabfa26a208e56f4d8dbf26fddc48f188bdb0649'
  - url: 'https://git.kernel.org/stable/c/953963b9ac5eecbb316617d337bfaa3d731e3c5e'
  - url: 'https://git.kernel.org/stable/c/25519469972ef57c3edb1805dabd6c5612b90211'
tags:
  - cve.org
epss: 0.00243
epssPercentile: 0.1438
ingestedAt: '2026-10-19T09:16:01.526Z'
---

## Overview

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

nfc: microread: validate target discovery payload lengths

microread_target_discovered() parses target discovery payloads from
skb->data according to the HCI gate. The fixed field offsets and UID
copies were checked only against the destination nfc_target buffers, not
against the actual skb length.

Validate that each gate-specific payload contains the fixed fields and
UID bytes before reading or copying them.

## Affected

- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < c6de4241f2efbbab286efbb84a9c7190298b3052`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 92a6f0201bb68391b5eba1b3f330af007d7323b6`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < cb298672282421159e53ab311fe49d204c8a52da`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 18f02354ed229b8e4561b580812d026e7eb29c85`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < e6397fe7b8b5ef18e051f49612d40ff476c5f7d9`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < d0902a7c454326c6384c614226ab8987f3fd425d`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < dabfa26a208e56f4d8dbf26fddc48f188bdb0649`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 953963b9ac5eecbb316617d337bfaa3d731e3c5e`
- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 25519469972ef57c3edb1805dabd6c5612b90211`
- `Linux 3.9`

## Remediation

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