CVE-2023-54309
Unknown Unknown - Not Provided

Race Condition in Linux Kernel TPM_vtpm_proxy Causes Memory Corruption

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation /dev/vtpmx is made visible before 'workqueue' is initialized, which can lead to a memory corruption in the worst case scenario. Address this by initializing 'workqueue' as the very first step of the driver initialization.

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2023-54309
EUVD
EUVD-2023-60495

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a race condition in the Linux kernel's tpm_vtpm_proxy driver related to the creation of /dev/vtpmx. The device /dev/vtpmx becomes visible before the 'workqueue' is initialized, which can potentially lead to memory corruption. The issue is fixed by initializing the 'workqueue' at the very start of the driver initialization process.

Impact Analysis

The vulnerability can lead to memory corruption in the Linux kernel, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges depending on the exploitation context.

Mitigation Strategies

To mitigate this vulnerability, update the Linux kernel to a version where the tpm_vtpm_proxy driver initializes the 'workqueue' before making /dev/vtpmx visible. This fixes the race condition and prevents potential memory corruption.

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