---
id: CVE-2026-80593
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  hwmon: (asus_atk0110) Check package count before accessing element

  atk_ec_present() walks the management group package returned by the GGRP
  ACPI method and, for each s…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  hwmon: (asus_atk0110) Check package count before accessing element

  atk_ec_present() walks the management group package returned by the GGRP
  ACPI method and, for each s…
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
published: '2026-08-28'
updated: '2026-08-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80593'
references:
  - url: 'https://git.kernel.org/stable/c/2a137124664aad1e36d8d74e8e2207365a04737f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/459b0a0439ea65b2b612aa572eb62a2e26d05618'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/76392d35c8df471b288cfc6536bd092b3c8ee2cf'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/768f20e7bb48d723b82cb142120263d0806fbeb8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/981a8a2e3773dc7e704943388a1fb97970b23275'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b770fcfcdced569bcf7c6982aeea8c3d11a21c2b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e2735b39f044bad7bf2017aef248935525bc0b97'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00144
epssPercentile: 0.04023
ingestedAt: '2026-08-29T21:42:36.853Z'
---

## Overview

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

hwmon: (asus_atk0110) Check package count before accessing element

atk_ec_present() walks the management group package returned by the GGRP
ACPI method and, for each sub-package, reads its first element:

	id = &obj->package.elements[0];
	if (id->type != ACPI_TYPE_INTEGER)

without checking that the sub-package is non-empty.  ACPICA allocates the
element array with exactly package.count entries, so for a sub-package
with a zero count this reads past the allocation.

The sibling function atk_debugfs_ggrp_open() performs the same access but
skips empty packages with a package.count check first.  Add the same
check to atk_ec_present() so a malformed firmware package cannot trigger
an out-of-bounds read.

## Remediation

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