linux-kernel - Re: [patch 0/3] x86/fpu: Prevent FPU state corruption

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Message-ID: <YnKeag3Ulg0NR58Q@zx2c4.com>
Date:   Wed, 4 May 2022 17:40:26 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Filipe Manana <fdmanana@...e.com>
Subject: Re: [patch 0/3] x86/fpu: Prevent FPU state corruption

Hi Thomas,

On Sun, May 01, 2022 at 09:31:42PM +0200, Thomas Gleixner wrote:
> The recent changes in the random code unearthed a long standing FPU state
> corruption due do a buggy condition for granting in-kernel FPU usage.
 
Thanks for working that out. I've been banging my head over [1] for a
few days now trying to see if it's a mis-bisect or a real thing. I'll
ask Larry to retry with this patchset.

Jason

[1] https://lore.kernel.org/lkml/7f01221d-f693-adf8-f5a5-d71944b44162@lwfinger.net/