---
id: CVE-2026-80754
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  Input: synaptics-rmi4 - fix F55 transmitter electrode count typo

  During F55 sensor detection, the transmitter (TX) electrode count was
  incorrectly assigned the value o…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  Input: synaptics-rmi4 - fix F55 transmitter electrode count typo

  During F55 sensor detection, the transmitter (TX) electrode count was
  incorrectly assigned the value o…
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-787
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-09-03'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T20:18:09.743'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80754'
references:
  - url: 'https://git.kernel.org/stable/c/0739c65e799d4a93fe573ed23255a71fcfcc5438'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6058f0fea10f3caf63a435677358d1b8e9325114'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6484e00d6778fdf2209cd75940bc3902b276457f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9759502f5cd71805923457f183ae5b9533e20c7b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9b184c8337c6e12df129399007735a7fbcbbcb7b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a6d9646e77da7cab2dff7043a8e9f75e23b836bc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a81cafe3c3c2f8494063385a7b0ea7ff407bf19f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/db4e20265ebda729610ca5cf45ca9437462c3f36'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80754.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80754'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2527860'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80754'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80754'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80754.mbox
  - url: 'https://kernelcve.org/list/?q=CVE-2026-80754'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.0012
epssPercentile: 0.01842
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T19:21:19.679916Z'
scores:
  nvd: 7.8
  vendor: 5.5
  cna: 7.8
ingestedAt: '2026-10-16T19:46:24.300Z'
---

## Overview

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

Input: synaptics-rmi4 - fix F55 transmitter electrode count typo

During F55 sensor detection, the transmitter (TX) electrode count was
incorrectly assigned the value of the receiver (RX) electrode count
due to copy-paste typos.

This incorrect value was then propagated to the driver data and used
by F54 to determine the diagnostics report size. On devices with more
RX than TX electrodes, this inflated the perceived TX count, leading
to incorrect report size calculations and potential out-of-bounds
buffer accesses.

Fix the typos by correctly assigning the TX electrode counts.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80754.json)