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CVE-2025-38609 – Linux Kernel Null Pointer Dereference in devfreq Governor

The following table lists the changes that have been made to the
CVE-2025-38609 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 19, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/2731c68f536fddcb71332db7f8d78c5eb4684c04
    Added Reference https://git.kernel.org/stable/c/631e101728df2a86b8fb761b49fad9712c651f8a
    Added Reference https://git.kernel.org/stable/c/75323a49aa603cf5484a6d74d0d329e86d756e11
    Added Reference https://git.kernel.org/stable/c/81f50619370045120c133bfdda5b320c8c97d41e
    Added Reference https://git.kernel.org/stable/c/bab7834c03820eb11269bc48f07c3800192460d2
    Added Reference https://git.kernel.org/stable/c/d5632359dbc44862fc1ed04093c1f57529830261
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