---
title: "CVE-2026-93111: Linux Kernel - Broken Access Control"
description: "Linux kernel contains a broken access control vulnerability caused by tracing_multi trampolines not being marked as ftrace managed, letting attackers cause resource release failures, exploit requires attaching tracing_multi and fentry links."
url: https://panop.io/threat-heartbeat/CVE-2026-93111/
---

# CVE-2026-93111 Linux Kernel - Broken Access Control

Linux kernel contains a broken access control vulnerability caused by tracing\_multi trampolines not being marked as ftrace managed, letting attackers cause resource release failures, exploit requires attaching tracing\_multi and fentry links.

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-2026-93111)

## Details

Type

Broken Access Control

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

17 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version with the fix that marks tracing\_multi trampolines as ftrace managed.

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-2026-93111](https://nvd.nist.gov/vuln/detail/CVE-2026-93111)
- [https://git.kernel.org/stable/c/280145253fd38fa975cc04963ddaf74c7f415011](https://git.kernel.org/stable/c/280145253fd38fa975cc04963ddaf74c7f415011)
- [https://git.kernel.org/stable/c/30bdd6d1384d894931f113eb595636092d8e650c](https://git.kernel.org/stable/c/30bdd6d1384d894931f113eb595636092d8e650c)

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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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