Re: [PATCH v8 3/5] x86/pkeys: Update PKRU to enable all pkeys before XSAVE

[Dave Hansen]

On 2/4/25 02:01, Dmitry Vyukov wrote:
>> But this updated PKRU value is also pushed onto the sigframe, which
>> means the register value restored from sigcontext will be different from
>> the user-defined one, which is unexpected. Fix that by overwriting the
>> PKRU value on the sigframe with the original, user-defined PKRU.
> 
> This unfortunatly seems to be broken for rseq user-space writes.

Hi Dmitry,

Are you saying that Aruna's patch caused a regression in the rseq code?
Or that the rseq code has a separate but similar issue to the one that
Aruna's patch fixed?