CVE-2023-54309

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

State: Published
Severity: Not scored
Published: Dec 30, 2025
Updated: May 11, 2026
Reserved: Dec 30, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	6f99612e250041a2402d3b1694bccb149cd424a4 to before 509d21f1c4bb9d35d397fca3226165b156a7639fAffected 6f99612e250041a2402d3b1694bccb149cd424a4 to before 04e8697d26613ccea760cf57eb20a5a27f788c0fAffected 6f99612e250041a2402d3b1694bccb149cd424a4 to before 86b9820395f226b8f33cbae9599deebf8af1ce72Affected 6f99612e250041a2402d3b1694bccb149cd424a4 to before 9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815bAffected 6f99612e250041a2402d3b1694bccb149cd424a4 to before e08295290c53a3cf174c236721747a01b9550ae2Affected 6f99612e250041a2402d3b1694bccb149cd424a4 to before 99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604Affected 6f99612e250041a2402d3b1694bccb149cd424a4 to before 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51Affected 6f99612e250041a2402d3b1694bccb149cd424a4 to before f4032d615f90970d6c3ac1d9c0bce3351eb4445cAffected
LinuxLinux	4.8Affected before 4.8Not affected 4.14.322 through 4.14.Not affected 4.19.291 through 4.19.Not affected 5.4.251 through 5.4.Not affected 5.10.188 through 5.10.Not affected 5.15.121 through 5.15.Not affected 6.1.40 through 6.1.Not affected 6.4.5 through 6.4.*Not affected 6.5 and laterNot affected

Product

Versions

LinuxLinux

6f99612e250041a2402d3b1694bccb149cd424a4 to before 509d21f1c4bb9d35d397fca3226165b156a7639fAffected
6f99612e250041a2402d3b1694bccb149cd424a4 to before 04e8697d26613ccea760cf57eb20a5a27f788c0fAffected
6f99612e250041a2402d3b1694bccb149cd424a4 to before 86b9820395f226b8f33cbae9599deebf8af1ce72Affected
6f99612e250041a2402d3b1694bccb149cd424a4 to before 9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815bAffected
6f99612e250041a2402d3b1694bccb149cd424a4 to before e08295290c53a3cf174c236721747a01b9550ae2Affected
6f99612e250041a2402d3b1694bccb149cd424a4 to before 99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604Affected
6f99612e250041a2402d3b1694bccb149cd424a4 to before 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51Affected
6f99612e250041a2402d3b1694bccb149cd424a4 to before f4032d615f90970d6c3ac1d9c0bce3351eb4445cAffected

LinuxLinux

4.8Affected
before 4.8Not affected
4.14.322 through 4.14.*Not affected
4.19.291 through 4.19.*Not affected
5.4.251 through 5.4.*Not affected
5.10.188 through 5.10.*Not affected
5.15.121 through 5.15.*Not affected
6.1.40 through 6.1.*Not affected
6.4.5 through 6.4.*Not affected
6.5 and laterNot affected

References

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