---
id: CVE-2026-80782
title: >-
  kernel: HID: magicmouse: do not keep a stale msc->input if no input is claimed
  (CVE-2026-80782)
summary: >-
  A flaw was found in the Magic Mouse Human Interface Device (HID) driver within
  the Linux kernel. When the `hidinput_connect()` function fails to register an
  input device, the driver may continue to use a pointer to memory that has
  already …
severity: medium
cvss: 4.1
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-416
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 7
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-09-04'
updated: '2026-10-25'
sourceUpdated: '2026-10-25T23:37:01+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80782.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80782.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80782'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2528567'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80782'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80782'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80782.mbox
  - url: 'https://kernelcve.org/list/?q=CVE-2026-80782'
  - url: 'https://git.kernel.org/stable/c/c3597923932bb90d4fc2186aef552f6677175e4a'
  - url: 'https://git.kernel.org/stable/c/e0c224c93d10ee38854fdf24c815108aedd3dcb3'
  - url: 'https://git.kernel.org/stable/c/403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14'
  - url: 'https://git.kernel.org/stable/c/3d7a7bac4c75f25b2513505a0ac5ba909588ed2b'
  - url: 'https://git.kernel.org/stable/c/9bdf8c7bfd79f1090e61d28f969b32880fd77bb3'
  - url: 'https://git.kernel.org/stable/c/15b60ade825c8ce9ec560048a4ae3747e4572be3'
  - url: 'https://git.kernel.org/stable/c/0bf253e9ac994cb5329bc87b00bb4eeca9136791'
  - url: 'https://git.kernel.org/stable/c/2ef16934e069d5f771e989d6ee5c3ece5042f3cd'
  - url: 'https://git.kernel.org/stable/c/0af3b89705688af01aa06025b84fa7a1e06ba6cc'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00195
epssPercentile: 0.0913
ingestedAt: '2026-10-19T10:20:54.956Z'
---

## Overview

A flaw was found in the Magic Mouse Human Interface Device (HID) driver within the Linux kernel. When the `hidinput_connect()` function fails to register an input device, the driver may continue to use a pointer to memory that has already been released. This use-after-free vulnerability can lead to system instability or crashes, and potentially allow a local attacker to escalate privileges or execute arbitrary code.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, 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 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80782.json)

**kernel: HID: magicmouse: do not keep a stale msc->input if no input is claimed** — rated Moderate by Red Hat. Released 2026-09-04, updated 2026-10-25.

Affected:

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

Not affected:

- Red Hat Enterprise Linux 6

## Remediation

Affected

Workarounds / mitigations:

- Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.