PT-2025-54066 · Linux+1 · Linux Kernel+1

CVE-2023-54237

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Published

2023-01-01

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Updated

2026-08-23

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Linux kernel contains a flaw in the networking component, specifically within the smc (SMC) subsystem. A potential panic can occur due to a lack of protection in the smc llc srv add link() function. This allows the function to add a new link to a link group without proper safeguards, disrupting the security environment protected by llc conf mutex. The issue arises when the server attempts to create a second link.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Resource Release

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Weakness Enumeration

Related Identifiers

BDU:2026-13780
CVE-2023-54237
OESA-2026-2492
RHSA-2025:20518

Affected Products

Debian
Linux Kernel