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NVD / CVE Program· CNA Linux

CVE-2023-53622: gfs2: Fix possible data races in gfs2_show_options()

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.14% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 235a5ae73cea29109a3e06f100493f17857e6a93, 42077d4de49e4d9c773c97c42d5383b4899a8f9d, 6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20.

Low priority for now. Upgrade to Linux Linux 235a5ae73cea29109a3e06f100493f17857e6a93, 42077d4de49e4d9c773c97c42d5383b4899a8f9d, 6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 7.0 · v3.1—No exploit Fix available
Published
Oct 7, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 3th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.6.31 and later · before 4.14.324
  • linux linux kernel4.15 and later · before 4.19.293
  • linux linux kernel4.20 and later · before 5.4.255
  • linux linux kernel5.5 and later · before 5.10.192
  • linux linux kernel5.11 and later · before 5.15.128
  • linux linux kernel5.16 and later · before 6.1.47
  • linux linux kernel6.2 and later · before 6.4.12

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.31affected
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before 7e5bbeb7eb813bb2568e1d5d02587df943272e57affected · git
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before 235a5ae73cea29109a3e06f100493f17857e6a93affected · git
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before b4a7ab57effbed42624842f2ab2a49b177c21a47affected · git
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before 7c5b2649f6a37d45bfb7abf34c9b71d08677139faffected · git
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before 85e888150075cb221270b64bf772341fc6bd11d9affected · git
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before a4f71523ed2123d63b431cc0cea4e9f363a0f054affected · git
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before 42077d4de49e4d9c773c97c42d5383b4899a8f9daffected · git
    • 48c2b613616235d7c97fda5982f50100a6c79166 and later · before 6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20affected · git
    • before 2.6.31not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.52-16.1.52-1
Debian:13linuxbefore 6.4.13-16.4.13-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2023-53620Oct 7, 2025 · md: fix soft lockup in status_resync
    22Monitor
  • ← EarlierCVE-2023-53621Oct 7, 2025 · memcontrol: ensure memcg acquired by id is properly set up
    31Monitor
  • Later →CVE-2023-53623Oct 7, 2025 · mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux235a5ae73cea29109a3e06f100493f17857e6a93Vendor (CNA)
Linux Linux42077d4de49e4d9c773c97c42d5383b4899a8f9dVendor (CNA)
Linux Linux6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20Vendor (CNA)
Linux Linux7c5b2649f6a37d45bfb7abf34c9b71d08677139fVendor (CNA)
Linux Linux7e5bbeb7eb813bb2568e1d5d02587df943272e57Vendor (CNA)
Linux Linux85e888150075cb221270b64bf772341fc6bd11d9Vendor (CNA)
Linux Linuxa4f71523ed2123d63b431cc0cea4e9f363a0f054Vendor (CNA)
Linux Linuxb4a7ab57effbed42624842f2ab2a49b177c21a47Vendor (CNA)
debian:linux6.1.52-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records