From: Peter Zijlstra <peterz@infradead.org>
To: Kees Cook <keescook@chromium.org>
Cc: Dave Hansen <dave.hansen@intel.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH] x86/mm: Refuse W^X violations
Date: Thu, 25 Aug 2022 21:42:12 +0200 [thread overview]
Message-ID: <YwfQlDFKvN2pic7Y@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <202208251113.B5AFA6D@keescook>
On Thu, Aug 25, 2022 at 11:16:12AM -0700, Kees Cook wrote:
> On Thu, Aug 25, 2022 at 02:23:31PM +0200, Peter Zijlstra wrote:
> > x86 has STRICT_*_RWX, but not even a warning when someone violates it.
>
> Yes please. I assume this is only kernel pages? Doing this globally is
> nice too, but runs into annoying problems[1].
Yeah, this interface should only be used on kernel pages.
prev parent reply other threads:[~2022-08-25 19:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 12:23 [PATCH] x86/mm: Refuse W^X violations Peter Zijlstra
2022-08-25 17:18 ` Sean Christopherson
2022-08-25 17:38 ` Dave Hansen
2022-08-25 18:16 ` Kees Cook
2022-08-25 19:42 ` Peter Zijlstra [this message]
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