---
title: "CVE-2026-90014: Linux Kernel - Use After Free"
description: "Linux kernel contains a use-after-free vulnerability caused by show_event_filters and show_event_triggers files not taking a reference to the trace array, letting local attackers cause a crash, exploit requires reading these files."
url: https://panop.io/threat-heartbeat/CVE-2026-90014/
---

# CVE-2026-90014 Linux Kernel - Use After Free

Linux kernel contains a use-after-free vulnerability caused by show\_event\_filters and show\_event\_triggers files not taking a reference to the trace array, letting local attackers cause a crash, exploit requires reading these files.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.17% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90014)

## Details

Type

Use After Free

Impact

Denial Of Service

CVSS vector

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

Published

16 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the 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-2026-90014](https://nvd.nist.gov/vuln/detail/CVE-2026-90014)
- [https://git.kernel.org/stable/c/f4a771cc684c7354b6200147f7252c58d17408ff](https://git.kernel.org/stable/c/f4a771cc684c7354b6200147f7252c58d17408ff)
- [https://git.kernel.org/stable/c/2ee3f7d43f79efaca0cd84a6798653d9d75ce60b](https://git.kernel.org/stable/c/2ee3f7d43f79efaca0cd84a6798653d9d75ce60b)

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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

Panop answers these inside your environment, for this CVE and every other finding.

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