"Researchers Blame ‘Monolithic’ Linux Code Base for Critical Vulnerabilities" https://threatpost.com/researchers-blame-monolithic-linux-code-base-for-critical-vulnerabilities/136785/
And here's the paper: "The Jury Is In: Monolithic OS Design Is Flawed" http://ts.data61.csiro.au/publications/csiro_full_text/Biggs_LH_18.pdf