From: Peter Zijlstra <peterz@infradead.org>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Alexander Potapenko <glider@google.com>,
Andrey Konovalov <andreyknvl@gmail.com>,
Dmitry Vyukov <dvyukov@google.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
Fei Yang <fei.yang@intel.com>,
stable@vger.kernel.org
Subject: Re: [PATCH] x86/alternatives: Disable KASAN on text_poke_early() in apply_alternatives()
Date: Tue, 10 Oct 2023 13:24:25 +0200 [thread overview]
Message-ID: <20231010112425.GJ377@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20231010102537.qkrfcna2fwfkzgir@box.shutemov.name>
On Tue, Oct 10, 2023 at 01:25:37PM +0300, Kirill A. Shutemov wrote:
> > That said, I don't particularly like the patch, I think it should, at
> > the veyr least, cover all of apply_alternatives, not just
> > text_poke_early().
>
> I can do this, if it is the only stopper.
>
> Do you want it disabled on caller side or inside apply_alternatives()?
Inside probably, covering the whole for()-loop thingy. Ideally with a
comment explaining how KASAN doesn't like partial LA57 patching.
next prev parent reply other threads:[~2023-10-10 11:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-10 5:37 [PATCH] x86/alternatives: Disable KASAN on text_poke_early() in apply_alternatives() Kirill A. Shutemov
2023-10-10 8:19 ` Borislav Petkov
2023-10-10 8:40 ` Kirill A. Shutemov
2023-10-10 9:12 ` Borislav Petkov
2023-10-10 10:24 ` Kirill A. Shutemov
2023-10-10 10:10 ` Peter Zijlstra
2023-10-10 10:16 ` Peter Zijlstra
2023-10-10 10:30 ` Kirill A. Shutemov
2023-10-10 10:25 ` Kirill A. Shutemov
2023-10-10 11:24 ` Peter Zijlstra [this message]
2023-10-10 13:10 ` Borislav Petkov
2023-10-10 13:54 ` Peter Zijlstra
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