Linux Kernel Out-of-Bounds Access Vulnerability in AMD Display Driver

A vulnerability allowing out-of-bounds access has been identified in the Linux kernel's AMD display driver. The issue arises because the 'hpo_stream_to_link_encoder_mapping' can have a size of up to 4, while the corresponding location can extend up to 6. This discrepancy necessitates a check to ensure the location does not exceed the maximum encoder size. Additionally, the 'disp_cfg_stream_location' can be used as an array index, which should range from 0 to 5, indicating that the ASSERT conditions should be adjusted to be less than or equal to 5.

Impact

Exploitation of this vulnerability could lead to out-of-bounds memory access, potentially causing memory corruption or allowing for arbitrary code execution.