linux-kernel - Re: Avoid speculative indirect calls in kernel

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Message-ID: <20180104003824.6e5e038e@alans-desktop>
Date:   Thu, 4 Jan 2018 00:38:24 +0000
From:   Alan Cox <gnomes@...rguk.ukuu.org.uk>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Andi Kleen <andi@...stfloor.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...ux-foundation.org>,
        dwmw@...zon.co.uk, Tim Chen <tim.c.chen@...ux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dave Hansen <dave.hansen@...el.com>
Subject: Re: Avoid speculative indirect calls in kernel

> So you say, that we finally need a perl interpreter in the kernel to do
> alternative patching?

No but for weird cases like that

gcc -S
perl -e
as

does work.

Alan