Friday, January 12, 2018

What went wrong with the Dirty COW vulnerability patch?

The Dirty COW vulnerability is caused by the mapping of the zero page as a huge page that can be overwritten. Researchers at Bindecy ran the vulnerable code and observed that "after the first write page-fault to the zero page, it will be replaced with a new fresh (zeroed) transparent huge page.

from Google Alert - vulnerability http://ift.tt/2Fw1SdK
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