---
id: CVE-2023-53622
title: 'gfs2: Fix possible data races in gfs2_show_options()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  gfs2: Fix possible data races in gfs2_show_options()

  Some fields such as gt_logd_secs of the struct gfs2_tune are accessed
  without holding the lock gt_spin in gfs2_sho…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    7e5bbeb7eb813bb2568e1d5d02587df943272e57
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    235a5ae73cea29109a3e06f100493f17857e6a93
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    b4a7ab57effbed42624842f2ab2a49b177c21a47
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    7c5b2649f6a37d45bfb7abf34c9b71d08677139f
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    85e888150075cb221270b64bf772341fc6bd11d9
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    a4f71523ed2123d63b431cc0cea4e9f363a0f054
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    42077d4de49e4d9c773c97c42d5383b4899a8f9d
  - >-
    Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 <
    6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20
  - Linux 2.6.31
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:25:50.736046Z'
published: '2025-10-07'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:31:18.098Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53622'
references:
  - url: 'https://git.kernel.org/stable/c/7e5bbeb7eb813bb2568e1d5d02587df943272e57'
  - url: 'https://git.kernel.org/stable/c/235a5ae73cea29109a3e06f100493f17857e6a93'
  - url: 'https://git.kernel.org/stable/c/b4a7ab57effbed42624842f2ab2a49b177c21a47'
  - url: 'https://git.kernel.org/stable/c/7c5b2649f6a37d45bfb7abf34c9b71d08677139f'
  - url: 'https://git.kernel.org/stable/c/85e888150075cb221270b64bf772341fc6bd11d9'
  - url: 'https://git.kernel.org/stable/c/a4f71523ed2123d63b431cc0cea4e9f363a0f054'
  - url: 'https://git.kernel.org/stable/c/42077d4de49e4d9c773c97c42d5383b4899a8f9d'
  - url: 'https://git.kernel.org/stable/c/6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20'
tags:
  - cve.org
epss: 0.00147
epssPercentile: 0.0396
ingestedAt: '2026-11-05T22:38:31.819Z'
---

## Overview

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

gfs2: Fix possible data races in gfs2_show_options()

Some fields such as gt_logd_secs of the struct gfs2_tune are accessed
without holding the lock gt_spin in gfs2_show_options():

  val = sdp->sd_tune.gt_logd_secs;
  if (val != 30)
    seq_printf(s, ",commit=%d", val);

And thus can cause data races when gfs2_show_options() and other functions
such as gfs2_reconfigure() are concurrently executed:

  spin_lock(&gt->gt_spin);
  gt->gt_logd_secs = newargs->ar_commit;

To fix these possible data races, the lock sdp->sd_tune.gt_spin is
acquired before accessing the fields of gfs2_tune and released after these
accesses.

Further changes by Andreas:

- Don't hold the spin lock over the seq_printf operations.

## Affected

- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < 7e5bbeb7eb813bb2568e1d5d02587df943272e57`
- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < 235a5ae73cea29109a3e06f100493f17857e6a93`
- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < b4a7ab57effbed42624842f2ab2a49b177c21a47`
- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < 7c5b2649f6a37d45bfb7abf34c9b71d08677139f`
- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < 85e888150075cb221270b64bf772341fc6bd11d9`
- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < a4f71523ed2123d63b431cc0cea4e9f363a0f054`
- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < 42077d4de49e4d9c773c97c42d5383b4899a8f9d`
- `Linux >= 48c2b613616235d7c97fda5982f50100a6c79166 < 6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20`
- `Linux 2.6.31`

## Remediation

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