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CVE-2025-39675 In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null pointer check in…

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)

Affected products and versions

Product Affected versions Fixed in
Linux 6.17 earliest → < 6.17 6.17
Linux 6.16 earliest → < 6.16.4 6.16.4
Linux 6.12 earliest → < 6.12.44 6.12.44
Linux 6.6 earliest → < 6.6.103 6.6.103
Linux 6.1 earliest → < 6.1.149 6.1.149
Linux 5.15 earliest → < 5.15.190 5.15.190
Linux 5.8 No fix stated
SIMATIC CN 4100 5.0 earliest → < 5.0 5.0

References

Timeline

  1. Published
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