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Message-ID: <1517643438.31953.108.camel@infradead.org>
Subject: Re: [BUG] x86 : i486 reporting to be vulnerable to
 Meltdown/Spectre_V1/Spectre_V2
From:   David Woodhouse <dwmw2@infradead.org>
To:     whiteheadm@acm.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        hughd@google.com, dave.hansen@linux.intel.com, jikos@kernel.org,
        bp@alien8.de, linux@roeck-us.net,
        Kees Cook <keescook@chromium.org>, jamie@jamieiles.com,
        eduval@amazon.com, labbott@redhat.com, riel@surriel.com,
        Thomas Gleixner <tglx@linutronix.de>,
        linux-kernel@vger.kernel.org
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Date:   Sat, 03 Feb 2018 07:37:18 +0000
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On Fri, 2018-02-02 at 23:52 -0500, tedheadster wrote:
> I just tested the 4.15 kernel and it is reporting that my old i486
> (non-cpuid capable) cpu is vulnerable to all three issues: Meltdown,
> Spectre V1, and Spectre V2.
>=20
> I find this to be _unlikely_.

This should be fixed in Linus' tree already by commit=C2=A0fec9434a1
("x86/pti: Do not enable PTI on CPUs which are not vulnerable to
Meltdown").

We'll make sure it ends up in the stable tree too, if it hasn't
already.
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