Hi Sami,
On Fri, Nov 20, 2020 at 09:00:17AM -0800, Sami Tolvanen wrote:
> On Thu, Nov 19, 2020 at 5:00 AM Will Deacon wrote:
> > On Thu, Oct 22, 2020 at 01:23:54PM -0700, Sami Tolvanen wrote:
> > > The kernel currently uses kmem_cache to allocate shadow call stacks,
> > > which means an overflow
On Thu, Nov 19, 2020 at 5:00 AM Will Deacon wrote:
>
> Hi Sami,
>
> On Thu, Oct 22, 2020 at 01:23:54PM -0700, Sami Tolvanen wrote:
> > The kernel currently uses kmem_cache to allocate shadow call stacks,
> > which means an overflow may not be immediately detected and can
> > potentially result in
Hi Sami,
On Thu, Oct 22, 2020 at 01:23:54PM -0700, Sami Tolvanen wrote:
> The kernel currently uses kmem_cache to allocate shadow call stacks,
> which means an overflow may not be immediately detected and can
> potentially result in another task's shadow stack to be overwritten.
>
> This change s
On Thu, Oct 22, 2020 at 01:23:54PM -0700, Sami Tolvanen wrote:
> The kernel currently uses kmem_cache to allocate shadow call stacks,
> which means an overflow may not be immediately detected and can
> potentially result in another task's shadow stack to be overwritten.
>
> This change switches SC
The kernel currently uses kmem_cache to allocate shadow call stacks,
which means an overflow may not be immediately detected and can
potentially result in another task's shadow stack to be overwritten.
This change switches SCS to use virtually mapped shadow stacks,
which increases shadow stack siz
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