CVE-2023-53622None▾ Sunlit

gfs2: Fix possible data races in gfs2_show_options()

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…

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

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Proof of concept

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Published

Oct 7, 2025

Updated

Nov 5, 2026

CVSS

—

Vendor

Linux

Product

Linux

CWE

—

Depth score

3 · Minimal

EPSS

0.15% · p4

Platforms

—

Source

CVEORG

Vector

—

CISA SSVC

decided 2026-11-05

Exploitation: none
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Nov 5.

0.1% → 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 394 days

Oct 7, 2025Published
Disclosed via CVEORG
Nov 5, 2026Record revised
Last analysed / modified upstream
Nov 5, 2026EPSS first tracked
0.1%

Linux #cve.org

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

Full technical detail▾

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.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org

gfs2: Fix possible data races in gfs2_show_options()

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

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