Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null pointer check for get_first_active_display() The function mod_hdcp_hdcp1_enable_encryption() 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 in mod_hdcp_hdcp2_enable_encryption(). Add a null pointer check for get_first_active_display() and return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 34d3e10ab905f06445f8dbd8a3d9697095e71bae; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 1ebcdf38887949def1a553ff3e45c98ed95a3cd0; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 5148c7ea69e9c5bf2f05081190f45ba96d3d1e7a; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before 4ce9f2dc9ff7cc410e8c5d936ec551e26b9599a9; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before b3005145eab98d36777660b8893466e4f630ae1c; affected 2deade5ede56581722c0d7672f28b09548dc0fc4 before c3e9826a22027a21d998d3e64882fa377b613006 |
| Linux / Linux | affected 5.8; unaffected 0 before 5.8; unaffected 5.15.187 through 5.15.*; unaffected 6.1.143 through 6.1.*; unaffected 6.6.96 through 6.6.*; unaffected 6.12.36 through 6.12.*; unaffected 6.15.5 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/34d3e10ab905f06445f8dbd8a3d9697095e71bae
- https://git.kernel.org/stable/c/1ebcdf38887949def1a553ff3e45c98ed95a3cd0
- https://git.kernel.org/stable/c/5148c7ea69e9c5bf2f05081190f45ba96d3d1e7a
- https://git.kernel.org/stable/c/4ce9f2dc9ff7cc410e8c5d936ec551e26b9599a9
- https://git.kernel.org/stable/c/b3005145eab98d36777660b8893466e4f630ae1c
- https://git.kernel.org/stable/c/c3e9826a22027a21d998d3e64882fa377b613006
ADP enrichment
No English description supplied.