[PATCH v2] news: Describe AArch64-specific changes

Andreas K. Huettel dilfridge@gentoo.org
Sun Jun 21 19:53:37 GMT 2026


Am Donnerstag, 18. Juni 2026, 21:39:57 Japanische Normalzeit schrieb Wilco Dijkstra:
> Hi Yury,
> 
> > +* On AArch64 targets that support Guarded Control Stack extension all GCS
> > +  operations (including status, write on shadow stack, and push to shadow
> > +  stack) are locked after enabling GCS with ENFORCED or OVERRIDE GCS policy.
> > +  When a GCS operation is locked, a program cannot change this operation
> > +  status via prctl syscall.  This prevents disabling or corrupting GCS
> > +  shadow stack during runtime.
> 
> Thanks, that's far clearer!
> 
> OK.

++

> 
> Cheers,
> Wilco


-- 
PD Dr. Andreas K. Hüttel
dilfridge@gentoo.org
Gentoo Linux developer 
(council, comrel, toolchain, base-system, perl, libreoffice)
https://wiki.gentoo.org/wiki/User:Dilfridge
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