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SubjectRe: [PATCH] kernel: make /proc/kallsyms mode 400 to reduce ease of attacking
On Fri, Nov 19, 2010 at 11:58 AM,  <> wrote:
> how far back do we need to maintain compatibility with userspace?
> Is this something that we can revisit in a few years and lock it down then?

The rule is basically "we never break user space".

But the "out" to that rule is that "if nobody notices, it's not
broken". In a few years? Who knows?

So breaking user space is a bit like trees falling in the forest. If
there's nobody around to see it, did it really break?


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