On Tue, Apr 04, 2017 at 09:45:36PM -0600, Tycho Andersen wrote:
> Hi Kees,
>
> On Tue, Apr 04, 2017 at 03:17:57PM -0700, Kees Cook wrote:
> > On Tue, Apr 4, 2017 at 3:08 PM, Tycho Andersen wrote:
> > > The goal of this patch is to protect the JIT against an attacker with a
> > > write-in-memory p
Hi Tycho,
[auto build test WARNING on net/master]
[also build test WARNING on v4.11-rc5 next-20170405]
[cannot apply to tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Tycho-Anderse
Hi Kees,
On Tue, Apr 04, 2017 at 03:17:57PM -0700, Kees Cook wrote:
> On Tue, Apr 4, 2017 at 3:08 PM, Tycho Andersen wrote:
> > The goal of this patch is to protect the JIT against an attacker with a
> > write-in-memory primitive. The JIT allocates a buffer which will eventually
> > be marked +x,
On Tue, Apr 4, 2017 at 3:08 PM, Tycho Andersen wrote:
> The goal of this patch is to protect the JIT against an attacker with a
> write-in-memory primitive. The JIT allocates a buffer which will eventually
> be marked +x, so we need to make sure that what was written to this buffer
> is what was i
The goal of this patch is to protect the JIT against an attacker with a
write-in-memory primitive. The JIT allocates a buffer which will eventually
be marked +x, so we need to make sure that what was written to this buffer
is what was intended.
We acheive this by building a hash of the instruction
