---
id: CVE-2024-42306
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  udf: Avoid using corrupted block bitmap buffer

  When the filesystem block bitmap is corrupted, we detect the corruption
  while loading the bitmap and fail the allocation…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  udf: Avoid using corrupted block bitmap buffer

  When the filesystem block bitmap is corrupted, we detect the corruption
  while loading the bitmap and fail the allocation…
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_kernel
affected:
  - 'linux_kernel >= 4.14.326, < 4.15'
  - 'linux_kernel >= 4.19.295, < 4.20'
  - 'linux_kernel >= 5.4.257, < 5.4.282'
  - 'linux_kernel >= 5.10.195, < 5.10.224'
  - 'linux_kernel >= 5.15.132, < 5.15.165'
  - 'linux_kernel >= 6.1.53, < 6.1.103'
  - 'linux_kernel >= 6.3, < 6.6.44'
  - 'linux_kernel >= 6.7, < 6.10.3'
patched:
  - linux_kernel 6.10.3
published: '2024-08-17'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:18:46.587'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-42306'
references:
  - url: 'https://git.kernel.org/stable/c/2199e157a465aaf98294d3932797ecd7fce942d5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/271cab2ca00652bc984e269cf1208699a1e09cdd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/57053b3bcf3403b80db6f65aba284d7dfe7326af'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6a43e3c210df6c5f00570f4be49a897677dbcb64'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8ca170c39eca7cad6e0cfeb24e351d8f8eddcd65'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a90d4471146de21745980cba51ce88e7926bcc4f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cae9e59cc41683408b70b9ab569f8654866ba914'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00246
epssPercentile: 0.15723
ingestedAt: '2026-10-15T03:30:12.734Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-09-10T16:10:15.929324Z'
---

## Overview

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

udf: Avoid using corrupted block bitmap buffer

When the filesystem block bitmap is corrupted, we detect the corruption
while loading the bitmap and fail the allocation with error. However the
next allocation from the same bitmap will notice the bitmap buffer is
already loaded and tries to allocate from the bitmap with mixed results
(depending on the exact nature of the bitmap corruption). Fix the
problem by using BH_verified bit to indicate whether the bitmap is valid
or not.

## Affected

- `linux_kernel >= 4.14.326, < 4.15`
- `linux_kernel >= 4.19.295, < 4.20`
- `linux_kernel >= 5.4.257, < 5.4.282`
- `linux_kernel >= 5.10.195, < 5.10.224`
- `linux_kernel >= 5.15.132, < 5.15.165`
- `linux_kernel >= 6.1.53, < 6.1.103`
- `linux_kernel >= 6.3, < 6.6.44`
- `linux_kernel >= 6.7, < 6.10.3`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.10.3`