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CVE-2025-38038

cpufreq: amd-pstate: Remove unnecessary driver_lock in set_boost

MEDIUM
5.5
CVSS Score
Published: June 18, 2025 at 09:33 AM UTC
Updated: June 17, 2026 at 09:15 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: cpufreq: amd-pstate: Remove unnecessary driver_lock in set_boost set_boost is a per-policy function call, hence a driver wide lock is unnecessary. Also this mutex_acquire can collide with the mutex_acquire from the mode-switch path in status_store(), which can lead to a deadlock. So, remove it.

Affected

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

Linux Kernel· Linux
95%
5.17 ≤ v < 6.12.315.17 ≤ v < 6.14.95.17 ≤ v < 6.156.13 ≤ v < 6.14.95.17ec437d71db77a181227bf6d0ac9d4a80e58ecf0f
Vendor states this is fixed in 61e931ee145eeab8196e585ff4334870b130b744 (fixed)
Vendor states this is fixed in cd347d071713234586762d79c5a691785e9be418 (fixed)
Vendor states this is fixed in db1cafc77aaaf871509da06f4a864e9af6d6791f (fixed)
Vendor states this is fixed in 5.17 (unaffected)
Vendor states this is fixed in 6.12.31 (unaffected)
Vendor states this is fixed in 6.14.9 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/61e931ee145eeab8196e585ff4334870b130b744
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cd347d071713234586762d79c5a691785e9be418
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/db1cafc77aaaf871509da06f4a864e9af6d6791f

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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