---
id: CVE-2023-53695
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  udf: Detect system inodes linked into directory hierarchy

  When UDF filesystem is corrupted, hidden system inodes can be linked
  into directory hierarchy which is an ave…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  udf: Detect system inodes linked into directory hierarchy

  When UDF filesystem is corrupted, hidden system inodes can be linked
  into directory hierarchy which is an ave…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 6174c2eb8ecef271159bdcde460ce8af54d8f72f <
    1dc71eeb198a8daa17d0c995998a53b0b749a158
  - >-
    Linux >= 6174c2eb8ecef271159bdcde460ce8af54d8f72f <
    d747b31e2925a2f384e7dd1901a2e5bc5f984ed8
  - >-
    Linux >= 6174c2eb8ecef271159bdcde460ce8af54d8f72f <
    a44ec34b90440ada190924f5908b97026504fdcd
  - >-
    Linux >= 6174c2eb8ecef271159bdcde460ce8af54d8f72f <
    37e74003d81e79457535cbbdfa1603431c03fac0
  - >-
    Linux >= 6174c2eb8ecef271159bdcde460ce8af54d8f72f <
    1f328751b65c49c13a312d67a3bf27766b85baf7
  - >-
    Linux >= 6174c2eb8ecef271159bdcde460ce8af54d8f72f <
    9e3b5ef7d02eaa6553e79b4af9bd99227280f245
  - >-
    Linux >= 6174c2eb8ecef271159bdcde460ce8af54d8f72f <
    85a37983ec69cc9fcd188bc37c4de15ee326355a
  - Linux 801c7a20d255e300ab51a6fcb1d0e218d136b16f
  - Linux >= 3.17.2 < 3.18
  - Linux 3.18
published: '2025-10-22'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T22:17:46.493'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-53695'
references:
  - url: 'https://git.kernel.org/stable/c/1dc71eeb198a8daa17d0c995998a53b0b749a158'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1f328751b65c49c13a312d67a3bf27766b85baf7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/37e74003d81e79457535cbbdfa1603431c03fac0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/85a37983ec69cc9fcd188bc37c4de15ee326355a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9e3b5ef7d02eaa6553e79b4af9bd99227280f245'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a44ec34b90440ada190924f5908b97026504fdcd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d747b31e2925a2f384e7dd1901a2e5bc5f984ed8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00164
epssPercentile: 0.05609
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T21:36:32.364844Z'
ingestedAt: '2026-10-15T22:48:25.417Z'
---

## Overview

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

udf: Detect system inodes linked into directory hierarchy

When UDF filesystem is corrupted, hidden system inodes can be linked
into directory hierarchy which is an avenue for further serious
corruption of the filesystem and kernel confusion as noticed by syzbot
fuzzed images. Refuse to access system inodes linked into directory
hierarchy and vice versa.

## Remediation

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