---
id: CVE-2026-98679
title: 'iio: accel: kxcjk-1013: reject duplicate event disable'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  iio: accel: kxcjk-1013: reject duplicate event disable

  The IIO core does not filter duplicate writes to the event enable
  attribute. kxcjk1013_write_event_config() alre…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca <
    ad690c0c1b9131725619e352cb7c970488cbf436
  - >-
    Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca <
    3365209e758c845a197211645731f0e393a86012
  - >-
    Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca <
    aa94a37b5a3e560c277dac6f9e5d0d75549a6583
  - >-
    Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca <
    dd30c10ff60d2b30386c23bb7c61cc97f2385c97
  - Linux 3.18
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:45:38.283Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98679'
references:
  - url: 'https://git.kernel.org/stable/c/ad690c0c1b9131725619e352cb7c970488cbf436'
  - url: 'https://git.kernel.org/stable/c/3365209e758c845a197211645731f0e393a86012'
  - url: 'https://git.kernel.org/stable/c/aa94a37b5a3e560c277dac6f9e5d0d75549a6583'
  - url: 'https://git.kernel.org/stable/c/dd30c10ff60d2b30386c23bb7c61cc97f2385c97'
tags:
  - cve.org
ingestedAt: '2026-10-18T16:47:32.530Z'
---

## Overview

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

iio: accel: kxcjk-1013: reject duplicate event disable

The IIO core does not filter duplicate writes to the event enable
attribute. kxcjk1013_write_event_config() already ignores repeated
enable requests, but a repeated disable request still calls
kxcjk1013_set_power_state(data, false), dropping a runtime PM reference
that was not acquired for this request. This can underflow the runtime
PM usage count and trigger a "Runtime PM usage count underflow" warning.

Return early when the requested state already matches ev_enable_state.

## Affected

- `Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca < ad690c0c1b9131725619e352cb7c970488cbf436`
- `Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca < 3365209e758c845a197211645731f0e393a86012`
- `Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca < aa94a37b5a3e560c277dac6f9e5d0d75549a6583`
- `Linux >= b4b491c0832ef90a7a5070e5975bc8427f2049ca < dd30c10ff60d2b30386c23bb7c61cc97f2385c97`
- `Linux 3.18`

## Remediation

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