Date: Sat, 22 Sep 2018 01:25:48 +0800 From: Carter Cheng <cartercheng@...il.com> To: kernel-hardening@...ts.openwall.com Subject: temporal and spatial locality in the kernel Hi, I recently attended a computer security conference for the first time and have developed some interest in kernel hardening issues after one of the presenters demonstrated a kernel exploit based partly around a use after free bug. After scanning the literature a little bit and looking at some papers I have encountered before on CCured and Cyclone. I was curious to what extent full memory saftety checks are now possible. There are many papers going back quite a bit on spatial safety implementations and some on temporal safety but they mainly target user space. I am curious why such things don't exist in the linux kernel at least as some sort of compile option. Is the slow down the main concern? It seems recent work has got the performance bound down to 1.29 is this considered too slow for many things? Regards, Carter Content of type "text/html" skipped
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