VDB-327091 · CVE-2023-53546 · EUVD-2023-60062

Linux Kernel up to 6.4.9 mlx5dr_cmd_create_reformat_ctx memory leak

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 5.4.252/5.10.189/5.15.125/6.1.44/6.4.9. The affected element is the function mlx5dr_cmd_create_reformat_ctx. This manipulation causes memory leak. This vulnerability is handled as CVE-2023-53546. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.4.252/5.10.189/5.15.125/6.1.44/6.4.9 and classified as critical. Affected by this vulnerability is the function mlx5dr_cmd_create_reformat_ctx. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: DR, fix memory leak in mlx5dr_cmd_create_reformat_ctx when mlx5_cmd_exec failed in mlx5dr_cmd_create_reformat_ctx, the memory pointed by 'in' is not released, which will cause memory leak. Move memory release after mlx5_cmd_exec.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2023-53546 since 10/04/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 302981 (EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-1637)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.253, 5.10.190, 5.15.126, 6.1.45 or 6.4.10 eliminates this vulnerability. Applying the patch 800d8c96bf997da5eb76ccf8d88795c4231c83fb/165159854757dbae0dfd1812b27051da35aa6223/00cecb0a8f9e7a21754d5ad85813ab6b47b3308f/3169c3854397f3070a63b1b772db16dcb8cba7b4/622d71d99124e69f7bf2e2b7a89f5f444a24d235/5dd77585dd9d0e03dd1bceb95f0269a7eaf6b936 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 (302981), EUVD (EUVD-2023-60062) and CERT Bund (WID-SEC-2025-2194). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Google Container-Optimized OS
Debian Linux
Google Cloud Platform
Amazon Linux 2
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
SUSE openSUSE
Open Source Linux Kernel
RESF Rocky Linux
NetApp ActiveIQ Unified Manager
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: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
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: 302981
Nessus Name: EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-1637)

Threat Intelligenceinfo

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

Countermeasuresinfo

Timelineinfo

10/04/2025 Advisory disclosed
10/04/2025 +0 days CVE reserved
10/04/2025 +0 days VulDB entry created
03/21/2026 +168 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53546 (🔒)
GCVE (CVE): GCVE-0-2023-53546
GCVE (VulDB): GCVE-100-327091
EUVD: 🔒
CERT Bund: WID-SEC-2025-2194 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/04/2025 18:04
Updated: 03/21/2026 12:15
Changes: 10/04/2025 18:04 (58), 10/05/2025 06:45 (1), 11/23/2025 13:56 (7), 12/26/2025 09:48 (1), 02/06/2026 23:12 (10), 03/01/2026 23:41 (1), 03/21/2026 12:15 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.