[PATCH] pkeys: Introduce PKEY_ALLOC_SIGNALINHERIT and change signal semantics

[Florian Weimer]

On 05/03/2018 01:38 AM, Ram Pai wrote:
> This is a new requirement that I was not aware off. Its not documented
> anywhere AFAICT.

Correct.  All inheritance behavior was deliberately left unspecified.

I'm surprised about the reluctance to fix the x86 behavior.  Are there 
any applications at all for the current semantics?

I guess I can implement this particular glibc hardening on POWER only 
for now.

Thanks,
Florian