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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.
Fixes:
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|---|---|---|
| .. | ||
| amdgpu_dm | ||
| dc | ||
| dmub | ||
| include | ||
| modules | ||
| Kconfig | ||
| Makefile | ||