CVE-2023-54309

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

N/A

Published: December 30, 2025 at 12:23 PM UTC

Updated: June 17, 2026 at 06:47 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

N/A

Exploit prediction

EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.8 ≤ v < 4.14.3224.8 ≤ v < 4.19.2914.8 ≤ v < 5.10.1884.8 ≤ v < 5.15.1214.8 ≤ v < 5.4.2514.8 ≤ v < 6.1.404.8 ≤ v < 6.4.54.8 ≤ v < 6.54.86f99612e250041a2402d3b1694bccb149cd424a4

Vendor states this is fixed in 04e8697d26613ccea760cf57eb20a5a27f788c0f (fixed)

Vendor states this is fixed in 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51 (fixed)

Vendor states this is fixed in 509d21f1c4bb9d35d397fca3226165b156a7639f (fixed)

Vendor states this is fixed in 86b9820395f226b8f33cbae9599deebf8af1ce72 (fixed)

Vendor states this is fixed in 99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604 (fixed)

Vendor states this is fixed in 9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815b (fixed)

Vendor states this is fixed in e08295290c53a3cf174c236721747a01b9550ae2 (fixed)

Vendor states this is fixed in f4032d615f90970d6c3ac1d9c0bce3351eb4445c (fixed)

Vendor states this is fixed in 4.14.322 (unaffected)

Vendor states this is fixed in 4.19.291 (unaffected)

Vendor states this is fixed in 4.8 (unaffected)

Vendor states this is fixed in 5.10.188 (unaffected)