linux-kernel - Re: [PATCH] crypto: x86/polyval - Fix crashes when keys are not 16-byte aligned

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Message-ID: <Y04lhwMechdfBkUU@gondor.apana.org.au>
Date:   Tue, 18 Oct 2022 12:03:19 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     Nathan Huckleberry <nhuck@...gle.com>,
        Bruno Goncalves <bgoncalv@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, Ard Biesheuvel <ardb@...nel.org>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: x86/polyval - Fix crashes when keys are not
 16-byte aligned

On Mon, Oct 17, 2022 at 05:12:16PM -0700, Eric Biggers wrote:
>
> arm64 defines ARCH_DMA_MINALIGN to 128, so I don't think the same issue applies
> there.  Also the instructions used don't assume aligned addresses.

Note that arm64 may lower ARCH_KMALLOC_MINALIGN to 8 soon.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt