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Date: Thu, 27 Nov 2025 11:17:04 -0800
From: Kees Cook <kees@kernel.org>
To: Ryan Roberts <ryan.roberts@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>, Will Deacon <will@kernel.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Jeremy Linton <jeremy.linton@arm.com>,
	Catalin Marinas <Catalin.Marinas@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	"linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [DISCUSSION] kstack offset randomization: bugs and performance
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On Thu, Nov 27, 2025 at 02:09:04PM +0000, Ryan Roberts wrote:
>     no: rip out kstack offset randomization

Uh, no. There are system builders that have no problem with the current
performance. The _feature_ must stay because it has users. Whether it is
default-enabled, etc, sure, I have no problem with making changes there.
Whatever we can do to make it better, I obviously welcome, but we can't
remove it.

-- 
Kees Cook