---
id: CVE-2026-23142
title: >-
  mm/damon/sysfs-scheme: cleanup access_pattern subdirs on scheme dir setup
  failure
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  mm/damon/sysfs-scheme: cleanup access_pattern subdirs on scheme dir setup
  failure


  When a DAMOS-scheme DAMON sysfs directory setup fails after setup of

  access_pattern/ …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 <
    ae8ac0066b48ed957bdcab58f0d3543549c57a29
  - >-
    Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 <
    e9711bd0e64812c694a228cf58c9e6032decee54
  - >-
    Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 <
    16236b0b4a08fa3e326cf1373ef789dabdc2e30d
  - >-
    Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 <
    725d4fdaa01bd1161782081f419e1568cc7432e0
  - >-
    Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 <
    392b3d9d595f34877dd745b470c711e8ebcd225c
  - Linux 5.18
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T21:20:44.254701Z'
published: '2026-02-14'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:23:19.338Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-23142'
references:
  - url: 'https://git.kernel.org/stable/c/ae8ac0066b48ed957bdcab58f0d3543549c57a29'
  - url: 'https://git.kernel.org/stable/c/e9711bd0e64812c694a228cf58c9e6032decee54'
  - url: 'https://git.kernel.org/stable/c/16236b0b4a08fa3e326cf1373ef789dabdc2e30d'
  - url: 'https://git.kernel.org/stable/c/725d4fdaa01bd1161782081f419e1568cc7432e0'
  - url: 'https://git.kernel.org/stable/c/392b3d9d595f34877dd745b470c711e8ebcd225c'
tags:
  - cve.org
epss: 0.00143
epssPercentile: 0.03625
ingestedAt: '2026-11-05T22:38:32.078Z'
---

## Overview

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

mm/damon/sysfs-scheme: cleanup access_pattern subdirs on scheme dir setup failure

When a DAMOS-scheme DAMON sysfs directory setup fails after setup of
access_pattern/ directory, subdirectories of access_pattern/ directory are
not cleaned up.  As a result, DAMON sysfs interface is nearly broken until
the system reboots, and the memory for the unremoved directory is leaked.

Cleanup the directories under such failures.

## Affected

- `Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 < ae8ac0066b48ed957bdcab58f0d3543549c57a29`
- `Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 < e9711bd0e64812c694a228cf58c9e6032decee54`
- `Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 < 16236b0b4a08fa3e326cf1373ef789dabdc2e30d`
- `Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 < 725d4fdaa01bd1161782081f419e1568cc7432e0`
- `Linux >= 9bbb820a5bd5f406ae5e0819cc31f2c2e6f4d990 < 392b3d9d595f34877dd745b470c711e8ebcd225c`
- `Linux 5.18`

## Remediation

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