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Medium severity5.5NVD Advisory· Published Sep 5, 2025· Updated May 12, 2026

CVE-2025-39675

CVE-2025-39675

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session()

The function mod_hdcp_hdcp1_create_session() calls the function get_first_active_display(), but does not check its return value. The return value is a null pointer if the display list is empty. This will lead to a null pointer dereference.

Add a null pointer check for get_first_active_display() and return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null.

This is similar to the commit c3e9826a2202 ("drm/amd/display: Add null pointer check for get_first_active_display()").

(cherry picked from commit 5e43eb3cd731649c4f8b9134f857be62a416c893)

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Affected products

116

Patches

Vulnerability mechanics

References

8

News mentions

1