Linux Kernel up to 5.10.174/5.15.102/6.1.19/6.2.6 SUNRPC kthread_stop denial of service

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 5.10.174/5.15.102/6.1.19/6.2.6. Affected by this vulnerability is the function kthread_stop of the component SUNRPC. The manipulation results in denial of service. This vulnerability is identified as CVE-2023-53131. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.10.174/5.15.102/6.1.19/6.2.6. Affected is the function kthread_stop of the component SUNRPC. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a server shutdown leak Fix a race where kthread_stop() may prevent the threadfn from ever getting called. If that happens the svc_rqst will not be cleaned up.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2023-53131 since 05/02/2025. The exploitability is told to be difficult. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 243420 (Amazon Linux 2 : kernel (ALAS-2025-2955)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.175, 5.15.103, 6.1.20 or 6.2.7 eliminates this vulnerability. Applying the patch ce7dd61e004002bc1c48d1ca47c887f3f3cc7370/ad7e40ee157ba33950a4ccdc284334580da3638d/7a3720361068ab520aed4608bad31ea9a6cc7fe7/f74b3286859463cd63cc9d4aeaabd8b0c640182a/9ca6705d9d609441d34f8b853e1e4a6369b3b171 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 (243420) and CERT Bund (WID-SEC-2025-0932). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• RESF Rocky Linux
• Dell Avamar
• Open Source Linux Kernel
• Dell NetWorker
• Dell Secure Connect Gateway
• IBM QRadar SIEM

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.174
• 5.15.102
• 6.1.0
• 6.1.1
• 6.1.2
• 6.1.3
• 6.1.4
• 6.1.5
• 6.1.6
• 6.1.7
• 6.1.8
• 6.1.9
• 6.1.10
• 6.1.11
• 6.1.12
• 6.1.13
• 6.1.14
• 6.1.15
• 6.1.16
• 6.1.17
• 6.1.18
• 6.1.19
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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