VDB-327452 · CVE-2023-53622 · Nessus 302727

Linux Kernel up to 6.4.11 gfs2 gfs2_show_options race condition

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6.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.4.11. It has been declared as critical. This issue affects the function gfs2_show_options of the component gfs2. Such manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2023-53622. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.4.11 and classified as critical. Affected by this issue is the function gfs2_show_options of the component gfs2. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2023-53622 since 10/07/2025. The exploitation is known to be difficult. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 302727 (EulerOS 2.0 SP11 : kernel (EulerOS-SA-2026-1582)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.324, 4.19.293, 5.4.255, 5.10.192, 5.15.128, 6.1.47 or 6.4.12 eliminates this vulnerability. Applying the patch 7e5bbeb7eb813bb2568e1d5d02587df943272e57/235a5ae73cea29109a3e06f100493f17857e6a93/b4a7ab57effbed42624842f2ab2a49b177c21a47/7c5b2649f6a37d45bfb7abf34c9b71d08677139f/85e888150075cb221270b64bf772341fc6bd11d9/a4f71523ed2123d63b431cc0cea4e9f363a0f054/42077d4de49e4d9c773c97c42d5383b4899a8f9d/6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (302727) and CERT Bund (WID-SEC-2025-2229). Once again VulDB remains the best source for vulnerability data.

Affected

Debian Linux
Amazon Linux 2
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
RESF Rocky Linux
Open Source Linux Kernel
IBM QRadar SIEM
Dell NetWorker

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 302727
Nessus Name: EulerOS 2.0 SP11 : kernel (EulerOS-SA-2026-1582)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Timelineinfo

10/07/2025 Advisory disclosed
10/07/2025 +0 days CVE reserved
10/07/2025 +0 days VulDB entry created
04/20/2026 +195 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53622 (🔒)
GCVE (CVE): GCVE-0-2023-53622
GCVE (VulDB): GCVE-100-327452
CERT Bund: WID-SEC-2025-2229 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/07/2025 19:19
Updated: 04/20/2026 03:09
Changes: 10/07/2025 19:19 (58), 11/23/2025 00:18 (7), 12/22/2025 08:14 (1), 02/05/2026 19:47 (13), 03/01/2026 09:31 (1), 03/17/2026 17:33 (2), 04/20/2026 03:09 (1)
Complete: 🔍
Cache ID: 216::103