Messages in this thread | | | From | Mike Waychison <> | Date | Thu, 14 Jul 2011 15:48:23 -0700 | Subject | Re: [PATCH 2/2] x86: Allow disabling of sys_iopl, sys_ioperm |
| |
On Thu, Jul 14, 2011 at 3:42 PM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: > On Thu, 14 Jul 2011 13:34:53 -0700 > Mike Waychison <mikew@google.com> wrote: > >> In some build environments, it is useful to allow disabling of IO >> accesses to hardware, without having to rely on CAP_SYS_RAWIO (which is > > And others include mmap and the tty driver and the PCI config space > (various devices can be manipulated via pci config space to do I/O cycles) > > It strikes me that > > a) you can do this with a security module
I can? How? The whole LSM approach seems intractable to me.
> b) its rather incomplete > > and as such you don't need kernel hacks to do it because everything you > want is already there.
Where? In an out of tree security module patchset?
> > Alan >
| |