[+] libyuv detects kCpuHasERMS — CopyRow_ERMS will be used.
[+] src = [0x7b8c055ff000 .. 0x7b8c855ff000)  guard @ 0x7b8c855ff000
[+] dst = [0x7b8b855fe000 .. 0x7b8c055fe000)  guard @ 0x7b8c055fe000
[+] Calling libyuv::CopyPlane(src, 131072, dst, 131072, width=131072, height=16384)
    contract:  copy exactly 2147483648 bytes (== width*height) and return
    bug:       width *= height wraps 131072*16384 = 0x80000000 to
               INT_MIN; CopyRow_ERMS sign-extends to
               rcx=0xFFFFFFFF80000000 and rep movsb runs OOB.
[-] CopyPlane returned without crashing — overflow did not lead to
    OOB access (bug fixed or ERMS path not taken).
    dst[last] = 0xAB (expected 0xAB)