CVE-2025-38609

PM / devfreq: Check governor before using governor->name

MEDIUM
5.5
CVSS Score
Published: August 19, 2025 at 05:03 PM UTC
Updated: June 17, 2026 at 09:17 AM UTC
2 products affected across 2 vendorsLinux KernelDebian Linux

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: Check governor before using governor->name Commit 96ffcdf239de ("PM / devfreq: Remove redundant governor_name from struct devfreq") removes governor_name and uses governor->name to replace it. But devfreq->governor may be NULL and directly using devfreq->governor->name may cause null pointer exception. Move the check of governor to before using governor->name.

Affected

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

5.11 ≤ v < 5.15.1905.11 ≤ v < 6.1.1485.11 ≤ v < 6.12.425.11 ≤ v < 6.15.105.11 ≤ v < 6.16.15.11 ≤ v < 6.175.11 ≤ v < 6.6.1025.16 ≤ v < 6.1.1486.13 ≤ v < 6.15.106.16 ≤ v < 6.16.16.2 ≤ v < 6.6.1026.7 ≤ v < 6.12.425.1196ffcdf239de6f9970178bb7d643e16fd9e68ab9
Vendor states this is fixed in 2731c68f536fddcb71332db7f8d78c5eb4684c04 (fixed)
Vendor states this is fixed in 631e101728df2a86b8fb761b49fad9712c651f8a (fixed)
Vendor states this is fixed in 75323a49aa603cf5484a6d74d0d329e86d756e11 (fixed)
Vendor states this is fixed in 81f50619370045120c133bfdda5b320c8c97d41e (fixed)
Vendor states this is fixed in bab7834c03820eb11269bc48f07c3800192460d2 (fixed)
Vendor states this is fixed in d5632359dbc44862fc1ed04093c1f57529830261 (fixed)
Vendor states this is fixed in f0479e878d4beb45e73c03e574c59f0a23ccd176 (fixed)
Vendor states this is fixed in 5.11 (unaffected)
Vendor states this is fixed in 5.15.190 (unaffected)
Vendor states this is fixed in 6.1.148 (unaffected)
Vendor states this is fixed in 6.12.42 (unaffected)
Vendor states this is fixed in 6.15.10 (unaffected)
Vendor states this is fixed in 6.16.1 (unaffected)
Vendor states this is fixed in 6.17 (unaffected)
Vendor states this is fixed in 6.6.102 (unaffected)

References (8)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2731c68f536fddcb71332db7f8d78c5eb4684c04
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/631e101728df2a86b8fb761b49fad9712c651f8a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/75323a49aa603cf5484a6d74d0d329e86d756e11
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/81f50619370045120c133bfdda5b320c8c97d41e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bab7834c03820eb11269bc48f07c3800192460d2
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d5632359dbc44862fc1ed04093c1f57529830261
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f0479e878d4beb45e73c03e574c59f0a23ccd176
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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