Re: [Gnu-arch-users] Re: give us a hand with arch

[Florian Weimer]

Ollivier Robert wrote:

> According to Florian Weimer:
> > present in the page cache.  You won't see it normally, because you
> > cannot read() beyond the end of the file, but mmap() can only map
> > complete pages, so you suddenly see the data (and it was random data
> > from kernel or user space, typically not something which ever was on
> > disk).
> 
> Am I the only one that sees that as a potential security problem?

No, certainly not.  I described this as a security problem, and was told
that it wouldn't be fixed for performance reasons.  (Of course, things
have changed since then, but it was pretty scary at that time.)