Project Zero blog: "Virtually Unlimited Memory: Escaping the Chrome Sandbox" by Mark Brand - https://googleprojectzero.blogspot.com/2019/04/virtually-unlimited-memory-escaping.html …
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Replying to @benhawkes
Why does the browser process not run out of physical memory when allocating 3-16Tbytes of virtual memory?
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Replying to @erikcorry
Shared mappings basically. From Mark: "the browser process is just repeatedly mapping the *same* pages of memory, so the actual [physical] memory overhead is minimal (PTEs, I guess). I also use hugepage size mappings to reduce the PTE overhead."
9:34 AM - 16 Apr 2019
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