Re: [PATCH] prctl: fix validation of an address

[Serge E. Hallyn]

Quoting Cyrill Gorcunov (gorcunov@xxxxxxxxxx):
> > The kernel makes the decision on what is valid via security_mmap_addr().
> > Assuming there are no security fears of an untrusted application
> > tricking some priviledged application to set up these maps the answer is
> > just calling security_mmap_addr() instead of doing if(addr <
> > mmap_min_addr) return -EINVAL;
> 
> If only I've not missed something obvious, the check for security_mmap_addr() here
> instead of poking the mmap_min_addr looks more correct for me. Andrew?

That sounds right to me as well.

-serge
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