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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00035.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
6f99612e250041a2402d3b1694bccb149cd424a4 affected < 509d21f1c4bb9d35d397fca3226165b156a7639f
6f99612e250041a2402d3b1694bccb149cd424a4 affected < 04e8697d26613ccea760cf57eb20a5a27f788c0f
6f99612e250041a2402d3b1694bccb149cd424a4 affected < 86b9820395f226b8f33cbae9599deebf8af1ce72
6f99612e250041a2402d3b1694bccb149cd424a4 affected < 9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815b
6f99612e250041a2402d3b1694bccb149cd424a4 affected < e08295290c53a3cf174c236721747a01b9550ae2
6f99612e250041a2402d3b1694bccb149cd424a4 affected < 99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604
6f99612e250041a2402d3b1694bccb149cd424a4 affected < 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51
6f99612e250041a2402d3b1694bccb149cd424a4 affected < f4032d615f90970d6c3ac1d9c0bce3351eb4445c
Linux Linux affected
Version Status Constraints
4.8 affected —
0 unaffected < 4.8
4.14.322 unaffected ≤ 4.14.*
4.19.291 unaffected ≤ 4.19.*
5.4.251 unaffected ≤ 5.4.*
5.10.188 unaffected ≤ 5.10.*
5.15.121 unaffected ≤ 5.15.*
6.1.40 unaffected ≤ 6.1.*
6.4.5 unaffected ≤ 6.4.*
6.5 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/04e8697d26613ccea760cf57eb20a5a27f788c0f cve-icon cve-icon
https://git.kernel.org/stable/c/092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51 cve-icon cve-icon
https://git.kernel.org/stable/c/509d21f1c4bb9d35d397fca3226165b156a7639f cve-icon cve-icon
https://git.kernel.org/stable/c/86b9820395f226b8f33cbae9599deebf8af1ce72 cve-icon cve-icon
https://git.kernel.org/stable/c/99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604 cve-icon cve-icon
https://git.kernel.org/stable/c/9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815b cve-icon cve-icon
https://git.kernel.org/stable/c/e08295290c53a3cf174c236721747a01b9550ae2 cve-icon cve-icon
https://git.kernel.org/stable/c/f4032d615f90970d6c3ac1d9c0bce3351eb4445c cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025123035-CVE-2023-54309-4435@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-54309 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-54309 cve-icon
History

Wed, 31 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Tue, 30 Dec 2025 12:45:00 +0000

Type Values Removed Values Added
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.
Title tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-30T12:23:41.834Z

Reserved: 2025-12-30T12:06:44.530Z

Link: CVE-2023-54309

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-30T13:16:20.083

Modified: 2025-12-31T20:42:43.210

Link: CVE-2023-54309

cve-icon Redhat

Severity : Low

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2023-54309 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.