---
id: CVE-2026-98880
title: 'ntfs3: handle set_blocksize failures'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ntfs3: handle set_blocksize failures

  ntfs3 uses buffer_heads, which don't handle block size > PAGE_SIZE well.
  Without this, mounting we will hit the

          BUG_ON(of…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 <
    df9dac4dbe557f6455a61e68cc09ef98b22f3686
  - >-
    Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 <
    c5b8a7ec9a0a71518915c82b8552be1ccbb88288
  - >-
    Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 <
    78e10082f3e919b8863958feac5f269d3ade9469
  - >-
    Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 <
    24f7d1824b7581ae3daf9d443c5dfeabd89df6d8
  - Linux 5.15
published: '2026-10-23'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T06:56:03.260Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98880'
references:
  - url: 'https://git.kernel.org/stable/c/df9dac4dbe557f6455a61e68cc09ef98b22f3686'
  - url: 'https://git.kernel.org/stable/c/c5b8a7ec9a0a71518915c82b8552be1ccbb88288'
  - url: 'https://git.kernel.org/stable/c/78e10082f3e919b8863958feac5f269d3ade9469'
  - url: 'https://git.kernel.org/stable/c/24f7d1824b7581ae3daf9d443c5dfeabd89df6d8'
tags:
  - cve.org
epss: 0.00174
epssPercentile: 0.06844
ingestedAt: '2026-10-23T13:24:55.581Z'
---

## Overview

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

ntfs3: handle set_blocksize failures

ntfs3 uses buffer_heads, which don't handle block size > PAGE_SIZE well.
Without this, mounting we will hit the

        BUG_ON(offset >= folio_size(folio));

in folio_set_bh on the first __bread_gfp call.

## Affected

- `Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < df9dac4dbe557f6455a61e68cc09ef98b22f3686`
- `Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < c5b8a7ec9a0a71518915c82b8552be1ccbb88288`
- `Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < 78e10082f3e919b8863958feac5f269d3ade9469`
- `Linux >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < 24f7d1824b7581ae3daf9d443c5dfeabd89df6d8`
- `Linux 5.15`

## Remediation

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