On Thu, Oct 3, 2013 at 3:23 PM, H. Peter Anvin <[email protected]> wrote: > On 10/03/2013 01:53 PM, Kees Cook wrote: >> Examine all the known unsafe areas and avoid them by just raising the >> minimum relocation position to be past them. >> >> Signed-off-by: Kees Cook <[email protected]> > >> + /* Minimum location must be above all these regions: */ > > This is highly problematic. The standard protocol is to hoist the > initramfs as high as possible in memory, so this may really unacceptably > restrict the available range.
Doesn't this depend on the boot loader's behavior? > It would be better to treat these the same as reserved regions in the > e820 map as far as the address space picking algorithm is concerned. Could this be considered a future optimization, or do you feel this is required even for this first patch series landing? -Kees -- Kees Cook Chrome OS Security -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
