CVE-2025-39707 – drm/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities

The following table lists the changes that have been made to the
CVE-2025-39707 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

    Sep. 05, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved:

    drm/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities

    HUBBUB structure is not initialized on DCE hardware, so check if it is NULL
    to avoid null dereference while accessing amdgpu_dm_capabilities file in
    debugfs.

    Added Reference https://git.kernel.org/stable/c/83cfdc2b018cd9c0f927b781d4e07c0d4a911fac
    Added Reference https://git.kernel.org/stable/c/98e92fceb9507901e3e8b550e93b843306abd354
    Added Reference https://git.kernel.org/stable/c/b4a69f7f29c8a459ad6b4d8a8b72450f1d9fd288
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