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

Published Sep 5, 2025
·
Updated

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

Affected Software

10 affected components
Linux Kernel
Microsoft azl3 kernel 6.6.96.2-1
Microsoft azl3 kernel 6.6.96.2-2
Linux Linux kernel>=4.15<6.12.44
Linux Linux kernel>=6.13<6.16.4
Microsoft cbl2 kernel 5.15.186.1-1
Microsoft azl3 kernel 6.6.104.2-4
Microsoft azl3 kernel 6.6.112.1-2
Microsoft azl3 kernel 6.6.117.1-1
Microsoft azl3 kernel 6.6.119.3-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Compensating control

    In drm/amdgpu debugfs/amdgpu_dm_capabilities, check whether HUBBUB is NULL before accessing it to prevent a null dereference when HUBBUB structure initialization is absent on DCE hardware.

Event History

Sep 5, 2025
CVE Published
via MITRE·05:21 PM
Data Sourced
via MITRE·05:21 PM
Description
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 7, 2025
Data Sourced
via Microsoft·01:09 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·01:09 AM
Affected Software
Updated
via Microsoft·01:09 AM
SeverityAffected Software
Updated
via Microsoft·08:09 AM
DescriptionWeakness
Updated
via Microsoft·08:09 AM
DescriptionSeverityWeakness

Frequently Asked Questions

1

What is the severity of CVE-2025-39707?

CVE-2025-39707 has a medium severity due to the potential for null dereference leading to application crashes.

2

How do I fix CVE-2025-39707?

To fix CVE-2025-39707, update your Linux kernel to a version where the vulnerability has been addressed.

3

Which versions of the Linux kernel are affected by CVE-2025-39707?

CVE-2025-39707 affects versions of the Linux kernel prior to the patch addressing this vulnerability.

4

What is the impact of CVE-2025-39707 on Linux systems?

The impact of CVE-2025-39707 could lead to system instability and potential crashes when accessing specific debugfs entries.

5

Is CVE-2025-39707 publicly known?

Yes, CVE-2025-39707 is a publicly disclosed vulnerability in the Linux kernel.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203