---
title: "CVE-2026-81017: Linux kernel - Out of Bounds Read & Write"
description: "Linux kernel platform/chrome sensorhub contains a buffer over-read and write caused by lack of validation of EC-reported sensor number in sensorhub batch_state indexing, letting attackers cause out-of-bounds memory access, exploit requires crafted EC FIFO events."
url: https://panop.io/threat-heartbeat/CVE-2026-81017/
---

# CVE-2026-81017 Linux kernel - Out of Bounds Read & Write

Linux kernel platform/chrome sensorhub contains a buffer over-read and write caused by lack of validation of EC-reported sensor number in sensorhub batch\_state indexing, letting attackers cause out-of-bounds memory access, exploit requires crafted EC FIFO events.

CVSS base score 8.4 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.18% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-81017)

## Details

Type

Out of Bounds Read

Impact

Denial Of Service, Data Tampering

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

11 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version with the sensor number validation fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-81017](https://nvd.nist.gov/vuln/detail/CVE-2026-81017)
- [https://git.kernel.org/stable/c/5eaf7faa99578ae090030d1e2e6ea3b37a615496](https://git.kernel.org/stable/c/5eaf7faa99578ae090030d1e2e6ea3b37a615496)
- [https://git.kernel.org/stable/c/833740a2333c2e4db4e02e3d0ffba04e8718a5f3](https://git.kernel.org/stable/c/833740a2333c2e4db4e02e3d0ffba04e8718a5f3)
- [https://git.kernel.org/stable/c/2b602ecf6193ecb9720c78b6728d7e09370b1ff1](https://git.kernel.org/stable/c/2b602ecf6193ecb9720c78b6728d7e09370b1ff1)
- [https://git.kernel.org/stable/c/324880f94ba3c6269a607e04f78a4dd4a66b3f53](https://git.kernel.org/stable/c/324880f94ba3c6269a607e04f78a4dd4a66b3f53)
- [https://git.kernel.org/stable/c/3a76b87e1d065183e2e7ae5b800cb1f6e84f543d](https://git.kernel.org/stable/c/3a76b87e1d065183e2e7ae5b800cb1f6e84f543d)
- [https://git.kernel.org/stable/c/d1b4add68dabfdd6481a4fa198bf3b473d2634d7](https://git.kernel.org/stable/c/d1b4add68dabfdd6481a4fa198bf3b473d2634d7)
- [https://git.kernel.org/stable/c/3d2636dce0a8fe9eecad29010699847be425dc80](https://git.kernel.org/stable/c/3d2636dce0a8fe9eecad29010699847be425dc80)
- [https://git.kernel.org/stable/c/4d9bf63ed74f859c6698bc01d8fb216ef9253867](https://git.kernel.org/stable/c/4d9bf63ed74f859c6698bc01d8fb216ef9253867)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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