On Fri, Feb 10, 2017 at 12:49:34PM -0800, Kees Cook wrote:
> On Fri, Feb 10, 2017 at 11:22 AM, Russell King - ARM Linux
> wrote:
> > On Thu, Feb 09, 2017 at 06:42:34PM -0800, Andy Lutomirski wrote:
> >> On Thu, Feb 9, 2017 at 3:41 PM, Thomas Garnier wrote:
> >> > So by default it is in the wrappe
On Fri, Feb 10, 2017 at 11:22 AM, Russell King - ARM Linux
wrote:
> On Thu, Feb 09, 2017 at 06:42:34PM -0800, Andy Lutomirski wrote:
>> On Thu, Feb 9, 2017 at 3:41 PM, Thomas Garnier wrote:
>> > So by default it is in the wrapper. If selected, an architecture can
>> > disable the wrapper put it i
On Thu, Feb 09, 2017 at 06:42:34PM -0800, Andy Lutomirski wrote:
> On Thu, Feb 9, 2017 at 3:41 PM, Thomas Garnier wrote:
> > So by default it is in the wrapper. If selected, an architecture can
> > disable the wrapper put it in the best places. Understood correctly?
>
> Sounds good to me.
>
> Pr
On Thu, Feb 9, 2017 at 3:41 PM, Thomas Garnier wrote:
> On Thu, Feb 9, 2017 at 3:05 PM, Andy Lutomirski wrote:
>> On Thu, Feb 9, 2017 at 11:31 AM, Kees Cook wrote:
>>> On Thu, Feb 9, 2017 at 10:33 AM, Thomas Garnier wrote:
This patch prevents a syscall to modify the address limit of the
>>
On Thu, Feb 9, 2017 at 3:05 PM, Andy Lutomirski wrote:
> On Thu, Feb 9, 2017 at 11:31 AM, Kees Cook wrote:
>> On Thu, Feb 9, 2017 at 10:33 AM, Thomas Garnier wrote:
>>> This patch prevents a syscall to modify the address limit of the
>>> caller. The address limit is kept by the syscall wrapper a
On Thu, Feb 9, 2017 at 11:31 AM, Kees Cook wrote:
> On Thu, Feb 9, 2017 at 10:33 AM, Thomas Garnier wrote:
>> This patch prevents a syscall to modify the address limit of the
>> caller. The address limit is kept by the syscall wrapper and restored
>> just after the syscall ends.
>>
>> For example
On Thu, Feb 9, 2017 at 10:33 AM, Thomas Garnier wrote:
> This patch prevents a syscall to modify the address limit of the
> caller. The address limit is kept by the syscall wrapper and restored
> just after the syscall ends.
>
> For example, it would mitigation this bug:
>
> - https://bugs.chromiu
This patch prevents a syscall to modify the address limit of the
caller. The address limit is kept by the syscall wrapper and restored
just after the syscall ends.
For example, it would mitigation this bug:
- https://bugs.chromium.org/p/project-zero/issues/detail?id=990
Signed-off-by: Thomas Gar
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