In s_check_valid_tile_param_custom_tile of av1_encoder, there is a possible Non-Heap Buffer Overflow due to a buffer overflow. This could l…

In s_check_valid_tile_param_custom_tile of av1_encoder, there is a possible Non-Heap Buffer Overflow due to a buffer overflow. This could lead to local escalation of privilege with execution privileges needed. User interaction is for exploitation.