CVE Database›CVE-2023-54309

CVE-2023-54309

kernel: tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation

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Severity

Low

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · December 30, 2025

Updated · July 22, 2026

Description

A race condition was found in the vTPM proxy driver. The /dev/vtpmx device becomes accessible before the workqueue is initialized, potentially causing memory corruption if accessed during the initialization window.

Statement

Exploitation requires accessing /dev/vtpmx during a narrow window at module load time. This affects virtualization environments using vTPM. The race window is very short, making reliable exploitation difficult.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-908 · Use of Uninitialized Resource