PT-2025-40688 · Linux+4 · Linux Kernel+4

Published 2023-07-26 · Updated 2026-02-06 · CVE-2023-53546

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory leak exists in the mlx5dr cmd create reformat ctx function within the net/mlx5 module of the Linux kernel. Specifically, when mlx5 cmd exec fails, the memory pointed to by the in variable is not released, leading to a memory leak.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Improper Resource Release

Weakness Enumeration

CWE-401

CWE-404

Related Identifiers

ALSA-2025_16880

BDU:2026-04416

CESA-2024_3138

CVE-2023-53546

RHSA-2024:2394

RHSA-2024:3138

RHSA-2024_2394

RHSA-2024_3138

SUSE-SU-2025:21040-1

SUSE-SU-2025:21052-1

SUSE-SU-2025:21056-1

SUSE-SU-2025:21064-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4128-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4140-1

SUSE-SU-2025:4141-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4301-1

SUSE-SU-2025:4320-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

Mlx5

References · 1311

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53546.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:4149-1 · Vendor Advisory
• https://git.kernel.org/stable/c/165159854757dbae0dfd1812b27051da35aa6223 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4128-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21056-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53546 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53546 · Vendor Advisory
• https://git.kernel.org/stable/c/00cecb0a8f9e7a21754d5ad85813ab6b47b3308f · Patch
• https://ubuntu.com/security/CVE-2023-53546 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53546 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4132-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21064-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53546 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53546 · Vendor Advisory