VM_Version_Ext::max_qualified_cpu_freq_from_brand_string() attempts to extract and return the CPU frequency, by inspecting the CPU brand string (as per the document "Intel® Processor Identification and the CPUID Instruction. Application note 845 May 2012").

There is a bug with the current implementation, because it is naive in using the following construct:

const char* Hz_location = strchr(brand_string, 'H');

This likely works for most CPU models / brands, but not when the brand string is of the following form (for example):

"Intel(R) Core(TM) i7-9850H CPU @ 2.60GHz"

The 'H' in "9850H" will be matched, but since there is no 'z' in the next position, the code will fall through and report a frequency of 0.