From: Peter Zijlstra <peterz@infradead.org>
To: Mathias Krause <minipli@grsecurity.net>
Cc: Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, Rick Edgecombe <rick.p.edgecombe@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86/shstk: Provide kernel command line knob to disable
Date: Thu, 2 Apr 2026 17:54:52 +0200 [thread overview]
Message-ID: <20260402155452.GD3739027@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20260402154405.1090935-1-minipli@grsecurity.net>
On Thu, Apr 02, 2026 at 05:44:05PM +0200, Mathias Krause wrote:
> Provide a kernel command line option 'shstk=off' to disable CET shadow
> stacks, much like 'ibt=off' can be used to disable CET IBT.
>
> With both set to off, it avoids setting CR4.CET on capable hardware to
> allow debugging related issues during early boot.
Why though?
next prev parent reply other threads:[~2026-04-02 15:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-02 15:44 [PATCH] x86/shstk: Provide kernel command line knob to disable Mathias Krause
2026-04-02 15:54 ` Peter Zijlstra [this message]
2026-04-02 15:59 ` Mathias Krause
2026-04-02 16:04 ` Peter Zijlstra
2026-04-02 16:53 ` Edgecombe, Rick P
2026-04-02 16:57 ` Dave Hansen
2026-04-02 17:38 ` Mathias Krause
2026-04-02 17:01 ` Mathias Krause
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