---
id: CVE-2026-53023
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fs/ntfs3: terminate the cached volume label after UTF-8 conversion

  ntfs_fill_super() loads the on-disk volume label with utf16s_to_utf8s()
  and stores the result in sbi…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fs/ntfs3: terminate the cached volume label after UTF-8 conversion

  ntfs_fill_super() loads the on-disk volume label with utf16s_to_utf8s()
  and stores the result in sbi…
severity: none
published: '2026-06-24'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53023'
references:
  - url: 'https://git.kernel.org/stable/c/0b11fcbe80a59acdf58337d80ebb5f72201d73d6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/32b0686369e0afbb3549a0d93e2d8517da84cd30'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/54d564b762389679e2f8fb9eeb20af7e82371e1c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5cd0707b81cb4589f00aec5c4c1288bd0980d2a4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6136bbb054f7ab9f51ae99915541633b18bcef90'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a6cd43fe9b083fa23fe1595666d5738856cb261a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00162
epssPercentile: 0.04813
ingestedAt: '2026-07-11T19:15:11.906Z'
---

## Overview

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

fs/ntfs3: terminate the cached volume label after UTF-8 conversion

ntfs_fill_super() loads the on-disk volume label with utf16s_to_utf8s()
and stores the result in sbi->volume.label. The converted label is later
exposed through ntfs3_label_show() using %s, but utf16s_to_utf8s() only
returns the number of bytes written and does not add a trailing NUL.

If the converted label fills the entire fixed buffer,
ntfs3_label_show() can read past the end of sbi->volume.label while
looking for a terminator.

Terminate the cached label explicitly after a successful conversion and
clamp the exact-full case to the last byte of the buffer.

## Remediation

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