On 12/14/2015 03:47 PM, Andy Lutomirski wrote:
> On Mon, Dec 14, 2015 at 3:44 PM, Dave Hansen wrote:
>> On 12/14/2015 03:39 PM, Andy Lutomirski wrote:
> Nope. My linker-fu is weak.
>
> Can we even depend on the linker by itself? Even if the sections were
> marked --x, we can't
On Mon, Dec 14, 2015 at 3:44 PM, Dave Hansen wrote:
> On 12/14/2015 03:39 PM, Andy Lutomirski wrote:
>>> > Nope. My linker-fu is weak.
>>> >
>>> > Can we even depend on the linker by itself? Even if the sections were
>>> > marked --x, we can't actually use them with those permissions unless we
On 12/14/2015 03:39 PM, Andy Lutomirski wrote:
>> > Nope. My linker-fu is weak.
>> >
>> > Can we even depend on the linker by itself? Even if the sections were
>> > marked --x, we can't actually use them with those permissions unless we
>> > have protection keys.
>> >
>> > Do we need some
On Mon, Dec 14, 2015 at 3:39 PM, Andy Lutomirski wrote:
> On Mon, Dec 14, 2015 at 3:37 PM, Dave Hansen wrote:
>> On 12/14/2015 12:05 PM, Kees Cook wrote:
>>> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
> From: Dave Hansen
> Protection keys provide new page-based protection
On Mon, Dec 14, 2015 at 3:37 PM, Dave Hansen wrote:
> On 12/14/2015 12:05 PM, Kees Cook wrote:
>> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>>> > From: Dave Hansen
>>> > Protection keys provide new page-based protection in hardware.
>>> > But, they have an interesting attribute: they
On Mon, Dec 14, 2015 at 3:37 PM, Dave Hansen wrote:
> On 12/14/2015 12:05 PM, Kees Cook wrote:
>> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>>> > From: Dave Hansen
>>> > Protection keys provide new page-based protection in hardware.
>>> > But, they have an interesting attribute: they
On 12/14/2015 12:05 PM, Kees Cook wrote:
> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>> > From: Dave Hansen
>> > Protection keys provide new page-based protection in hardware.
>> > But, they have an interesting attribute: they only affect data
>> > accesses and never affect
On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>
> From: Dave Hansen
>
> Protection keys provide new page-based protection in hardware.
> But, they have an interesting attribute: they only affect data
> accesses and never affect instruction fetches. That means that
> if we set up some
On Mon, Dec 14, 2015 at 3:39 PM, Andy Lutomirski wrote:
> On Mon, Dec 14, 2015 at 3:37 PM, Dave Hansen wrote:
>> On 12/14/2015 12:05 PM, Kees Cook wrote:
>>> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
> From: Dave Hansen
On 12/14/2015 12:05 PM, Kees Cook wrote:
> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>> > From: Dave Hansen
>> > Protection keys provide new page-based protection in hardware.
>> > But, they have an interesting attribute: they only affect
On Mon, Dec 14, 2015 at 3:44 PM, Dave Hansen wrote:
> On 12/14/2015 03:39 PM, Andy Lutomirski wrote:
>>> > Nope. My linker-fu is weak.
>>> >
>>> > Can we even depend on the linker by itself? Even if the sections were
>>> > marked --x, we can't actually use them with those
On 12/14/2015 03:39 PM, Andy Lutomirski wrote:
>> > Nope. My linker-fu is weak.
>> >
>> > Can we even depend on the linker by itself? Even if the sections were
>> > marked --x, we can't actually use them with those permissions unless we
>> > have protection keys.
>> >
>> > Do we need some
On 12/14/2015 03:47 PM, Andy Lutomirski wrote:
> On Mon, Dec 14, 2015 at 3:44 PM, Dave Hansen wrote:
>> On 12/14/2015 03:39 PM, Andy Lutomirski wrote:
> Nope. My linker-fu is weak.
>
> Can we even depend on the linker by itself? Even if the sections were
> marked
On Mon, Dec 14, 2015 at 3:37 PM, Dave Hansen wrote:
> On 12/14/2015 12:05 PM, Kees Cook wrote:
>> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>>> > From: Dave Hansen
>>> > Protection keys provide new page-based protection in
On Mon, Dec 14, 2015 at 3:37 PM, Dave Hansen wrote:
> On 12/14/2015 12:05 PM, Kees Cook wrote:
>> On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>>> > From: Dave Hansen
>>> > Protection keys provide new page-based protection in
On Mon, Dec 14, 2015 at 11:06 AM, Dave Hansen wrote:
>
> From: Dave Hansen
>
> Protection keys provide new page-based protection in hardware.
> But, they have an interesting attribute: they only affect data
> accesses and never affect instruction
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