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CVE-2025-39675

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 2af45aadb7b5d3852c76e2d1e985289ada6f48bf; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before ee0373b20bb67b1f00a1b25ccd24c8ac996b6446; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 857b8387a9777e42b36e0400be99b54c251eaf9a; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 97fc94c5fd3c6ac5a13e457d38ee247737b8c4bd; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 2ee86b764c54e0d6a5464fb023b630fdf20869cd; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 7a2ca2ea64b1b63c8baa94a8f5deb70b2248d119
Linux / Linuxaffected 5.8; unaffected 0 before 5.8; unaffected 5.15.190 through 5.15.*; unaffected 6.1.149 through 6.1.*; unaffected 6.6.103 through 6.6.*; unaffected 6.12.44 through 6.12.*; unaffected 6.16.4 through 6.16.*; unaffected 6.17 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

siemens-SADP

No English description supplied.