On Tue, Apr 19, 2016 at 2:04 AM, Dave Young <dyo...@redhat.com> wrote:
>
> It is not clear how to handle it, maybe we can assume nobody is using it as
> non-root, leave it as is or just add |CAP_SYS_BOOT for /proc/iomem?
Pretty much nobody uses fine-grained capabilities anyway - they are
one of those bad security things that generally add more complexity
than value(*) - so I wouldn't worry about it unless you actually find
something that cares.
Linus
(*) The one exception tends to be certain network services that can
use CAP_NET_BIND_SERVICE like things to really lower their attack
surface. But certainly not one-time things like kexec.
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