[PATCH v2 2/3] nptl: Add libc allocated shadow stack for new threads

[Mark Brown]

On Fri, Oct 03, 2025 at 03:55:13PM -0400, enh wrote:
> On Thu, Oct 2, 2025 at 11:49 AM Mark Brown <broonie@kernel.org> wrote:

> > At the minute when shadow stacks
> > are enabled those signals will use the standard shadow stack together
> > with the alternative normal stack.

> which is probably fine?

The kernel allocated shadow stacks are sized generously since currently
userspace is unable to control their size so for practical use there
should be little chance of them overflowing.
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