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SubjectRe: [PATCH] Protection for exploiting null dereference using mmap
Eric Paris wrote:
>
> While I understand, there are a few users who will have problems with
> this default are we really better to not provide this defense in depth
> for the majority of users and let those with problems turn it off rather
> than provide no defense by default? I could even provide a different
> default for SELinux and non-SELinux if anyone saw value in that? But if
> others think that off default is best I'll send another patch shortly
> with the unsigned long fix and the default set to 0. My hope is then
> that distros will figure out to turn this on.
>

I hope not. This breaks any hardware virtualizer.

So yes, we're better off not having this on, and require it to be
explicitly enabled by the end user.

Sorry.

-hpa
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