linux-kernel - Re: [PATCH] lib/crypto: blake2s: fix a CFI failure

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Date:   Wed, 19 Jan 2022 10:09:00 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     miles.chen@...iatek.com
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ard Biesheuvel <ardb@...nel.org>, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] lib/crypto: blake2s: fix a CFI failure

Hey again,

Actually... It looks like the issue is that in this file:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/crypto/internal/blake2s.h

this line

typedef void (*blake2s_compress_t)(struct blake2s_state *state,
				   const u8 *block, size_t nblocks, u32 inc);

should become

typedef void (*blake2s_compress_t)(struct blake2s_state *state,
				   const u8 *block, size_t nblocks, const u32 inc);

Does making that change fix things for you?

Thanks,
Jason