---
id: CVE-2022-26490
title: >-
  st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux
  kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of
  untrusted length parameters.
summary: >-
  st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux
  kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of
  untrusted length parameters.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-120
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 4.9.309
  - 'linux_kernel >= 4.10, < 4.14.274'
  - 'linux_kernel >= 4.15, < 4.19.237'
  - 'linux_kernel >= 4.20, < 5.4.188'
  - 'linux_kernel >= 5.5, < 5.10.109'
  - 'linux_kernel >= 5.11, < 5.15.32'
  - 'linux_kernel >= 5.16, < 5.16.18'
  - fedora = 34
  - fedora = 35
  - h300s_firmware
  - h500s_firmware
  - h700s_firmware
  - h300e_firmware
  - h500e_firmware
  - h700e_firmware
  - h410s_firmware
  - h410c_firmware
  - debian_linux = 9.0
  - debian_linux = 10.0
patched:
  - linux_kernel 5.16.18
published: '2022-03-06'
updated: '2026-09-01'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-26490'
references:
  - url: >-
      https://github.com/torvalds/linux/commit/4fbcc1a4cb20fe26ad0225679c536c80f1648221
    label: cve@mitre.org
  - url: 'https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html'
    label: cve@mitre.org
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BG4J46EMFPDD5QHYXDUI3PJCZQ7HQAZR/
    label: cve@mitre.org
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C5AUUDGSDLGYU7SZSK4PFAN22NISQZBT/
    label: cve@mitre.org
  - url: 'https://security.netapp.com/advisory/ntap-20220429-0004/'
    label: cve@mitre.org
  - url: 'https://www.debian.org/security/2022/dsa-5127'
    label: cve@mitre.org
  - url: 'https://www.debian.org/security/2022/dsa-5173'
    label: cve@mitre.org
  - url: >-
      https://github.com/torvalds/linux/commit/4fbcc1a4cb20fe26ad0225679c536c80f1648221
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BG4J46EMFPDD5QHYXDUI3PJCZQ7HQAZR/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C5AUUDGSDLGYU7SZSK4PFAN22NISQZBT/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20220429-0004/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2022/dsa-5127'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2022/dsa-5173'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00432
epssPercentile: 0.37067
ingestedAt: '2026-09-01T18:30:36.403Z'
---

## Overview

st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters.

## Affected

- `linux_kernel < 4.9.309`
- `linux_kernel >= 4.10, < 4.14.274`
- `linux_kernel >= 4.15, < 4.19.237`
- `linux_kernel >= 4.20, < 5.4.188`
- `linux_kernel >= 5.5, < 5.10.109`
- `linux_kernel >= 5.11, < 5.15.32`
- `linux_kernel >= 5.16, < 5.16.18`
- `fedora = 34`
- `fedora = 35`
- `h300s_firmware`
- `h500s_firmware`
- `h700s_firmware`
- `h300e_firmware`
- `h500e_firmware`
- `h700e_firmware`
- `h410s_firmware`
- `h410c_firmware`
- `debian_linux = 9.0`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.16.18`