From: Eric Biggers <ebiggers@kernel.org>
To: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
llvm@lists.linux.dev, Nick Desaulniers <ndesaulniers@google.com>,
Sami Tolvanen <samitolvanen@google.com>,
Nathan Chancellor <nathan@kernel.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
Miles Chen <miles.chen@mediatek.com>,
Ard Biesheuvel <ardb@kernel.org>
Subject: Re: [PATCH v2] lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
Date: Mon, 24 Jan 2022 22:40:42 -0800 [thread overview]
Message-ID: <Ye+bam3aSIjz8n9E@sol.localdomain> (raw)
In-Reply-To: <20220124192849.14755-1-Jason@zx2c4.com>
On Mon, Jan 24, 2022 at 08:28:49PM +0100, Jason A. Donenfeld wrote:
> blake2s_compress_generic is weakly aliased by blake2s_generic. The
Don't you mean "weakly aliased by blake2s_compress"?
> Fixes: 6048fdcc5f26 ("lib/crypto: blake2s: include as built-in")
> Reported-by: Miles Chen <miles.chen@mediatek.com>
> Tested-by: Miles Chen <miles.chen@mediatek.com>
> Tested-by: Nathan Chancellor <nathan@kernel.org>
> Link: https://github.com/ClangBuiltLinux/linux/issues/1567
> Cc: Nick Desaulniers <ndesaulniers@google.com>
> Cc: Sami Tolvanen <samitolvanen@google.com>
> Cc: Ard Biesheuvel <ardb@kernel.org>
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
> ---
Otherwise this looks fine, though it's unfortunate this is needed. You can add:
Reviewed-by: Eric Biggers <ebiggers@google.com>
> Changes v1->v2:
> - Wrapped columns at 80 for Eric.
It is the recommended coding style, so not just for me :-)
- Eric
WARNING: multiple messages have this Message-ID (diff)
From: Eric Biggers <ebiggers@kernel.org>
To: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
llvm@lists.linux.dev, Nick Desaulniers <ndesaulniers@google.com>,
Sami Tolvanen <samitolvanen@google.com>,
Nathan Chancellor <nathan@kernel.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
Miles Chen <miles.chen@mediatek.com>,
Ard Biesheuvel <ardb@kernel.org>
Subject: Re: [PATCH v2] lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
Date: Mon, 24 Jan 2022 22:40:42 -0800 [thread overview]
Message-ID: <Ye+bam3aSIjz8n9E@sol.localdomain> (raw)
In-Reply-To: <20220124192849.14755-1-Jason@zx2c4.com>
On Mon, Jan 24, 2022 at 08:28:49PM +0100, Jason A. Donenfeld wrote:
> blake2s_compress_generic is weakly aliased by blake2s_generic. The
Don't you mean "weakly aliased by blake2s_compress"?
> Fixes: 6048fdcc5f26 ("lib/crypto: blake2s: include as built-in")
> Reported-by: Miles Chen <miles.chen@mediatek.com>
> Tested-by: Miles Chen <miles.chen@mediatek.com>
> Tested-by: Nathan Chancellor <nathan@kernel.org>
> Link: https://github.com/ClangBuiltLinux/linux/issues/1567
> Cc: Nick Desaulniers <ndesaulniers@google.com>
> Cc: Sami Tolvanen <samitolvanen@google.com>
> Cc: Ard Biesheuvel <ardb@kernel.org>
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
> ---
Otherwise this looks fine, though it's unfortunate this is needed. You can add:
Reviewed-by: Eric Biggers <ebiggers@google.com>
> Changes v1->v2:
> - Wrapped columns at 80 for Eric.
It is the recommended coding style, so not just for me :-)
- Eric
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next prev parent reply other threads:[~2022-01-25 6:40 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-19 8:24 [PATCH] lib/crypto: blake2s: fix a CFI failure miles.chen
2022-01-19 8:24 ` miles.chen
2022-01-19 8:24 ` miles.chen
2022-01-19 9:00 ` Jason A. Donenfeld
2022-01-19 9:00 ` Jason A. Donenfeld
2022-01-19 9:00 ` Jason A. Donenfeld
2022-01-19 9:09 ` Jason A. Donenfeld
2022-01-19 9:09 ` Jason A. Donenfeld
2022-01-19 9:09 ` Jason A. Donenfeld
2022-01-19 9:16 ` Miles Chen
2022-01-19 9:16 ` Miles Chen
2022-01-19 9:16 ` Miles Chen
2022-01-19 9:09 ` Ard Biesheuvel
2022-01-19 9:09 ` Ard Biesheuvel
2022-01-19 9:09 ` Ard Biesheuvel
2022-01-19 9:13 ` Ard Biesheuvel
2022-01-19 9:13 ` Ard Biesheuvel
2022-01-19 9:13 ` Ard Biesheuvel
2022-01-19 9:43 ` Miles Chen
2022-01-19 9:43 ` Miles Chen
2022-01-19 9:43 ` Miles Chen
2022-01-19 10:10 ` Miles Chen
2022-01-19 10:10 ` Miles Chen
2022-01-19 10:10 ` Miles Chen
2022-01-19 9:24 ` Miles Chen
2022-01-19 9:24 ` Miles Chen
2022-01-19 9:24 ` Miles Chen
2022-01-19 9:55 ` Jason A. Donenfeld
2022-01-19 9:55 ` Jason A. Donenfeld
2022-01-19 9:55 ` Jason A. Donenfeld
2022-01-19 10:06 ` Miles Chen
2022-01-19 10:06 ` Miles Chen
2022-01-19 10:06 ` Miles Chen
2022-01-19 10:11 ` Jason A. Donenfeld
2022-01-19 10:11 ` Jason A. Donenfeld
2022-01-19 10:11 ` Jason A. Donenfeld
2022-01-19 10:56 ` Jason A. Donenfeld
2022-01-19 10:56 ` Jason A. Donenfeld
2022-01-19 10:56 ` Jason A. Donenfeld
2022-01-19 12:14 ` Jason A. Donenfeld
2022-01-19 12:14 ` Jason A. Donenfeld
2022-01-19 12:14 ` Jason A. Donenfeld
2022-01-19 12:18 ` Ard Biesheuvel
2022-01-19 12:18 ` Ard Biesheuvel
2022-01-19 12:18 ` Ard Biesheuvel
2022-01-19 13:34 ` Jason A. Donenfeld
2022-01-19 13:34 ` Jason A. Donenfeld
2022-01-19 13:34 ` Jason A. Donenfeld
2022-01-19 13:54 ` [PATCH] lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI Jason A. Donenfeld
2022-01-19 13:54 ` Jason A. Donenfeld
2022-01-19 13:54 ` Jason A. Donenfeld
2022-01-19 14:46 ` Miles Chen
2022-01-19 14:46 ` Miles Chen
2022-01-19 14:46 ` Miles Chen
2022-01-19 22:24 ` Nathan Chancellor
2022-01-19 22:24 ` Nathan Chancellor
2022-01-19 22:24 ` Nathan Chancellor
2022-01-20 9:44 ` Jason A. Donenfeld
2022-01-20 9:44 ` Jason A. Donenfeld
2022-01-20 9:44 ` Jason A. Donenfeld
2022-01-21 19:54 ` Eric Biggers
2022-01-21 19:54 ` Eric Biggers
2022-01-21 19:54 ` Eric Biggers
2022-01-21 20:22 ` Jason A. Donenfeld
2022-01-21 20:22 ` Jason A. Donenfeld
2022-01-21 20:22 ` Jason A. Donenfeld
2022-01-21 20:51 ` Sami Tolvanen
2022-01-21 20:51 ` Sami Tolvanen
2022-01-21 20:51 ` Sami Tolvanen
2022-01-24 19:28 ` [PATCH v2] " Jason A. Donenfeld
2022-01-24 19:28 ` Jason A. Donenfeld
2022-01-24 19:59 ` Nick Desaulniers
2022-01-24 19:59 ` Nick Desaulniers
2022-01-25 6:40 ` Eric Biggers [this message]
2022-01-25 6:40 ` Eric Biggers
2022-01-25 12:23 ` Jason A. Donenfeld
2022-01-25 12:23 ` Jason A. Donenfeld
2022-01-26 22:54 ` Eric Biggers
2022-01-26 22:54 ` Eric Biggers
2022-01-26 22:51 ` [PATCH] " John Stultz
2022-01-26 22:51 ` John Stultz
2022-01-26 22:51 ` John Stultz
2022-01-19 14:40 ` [PATCH] lib/crypto: blake2s: fix a CFI failure David Laight
2022-01-19 14:40 ` David Laight
2022-01-19 14:40 ` David Laight
2022-01-19 15:03 ` Jason A. Donenfeld
2022-01-19 15:03 ` Jason A. Donenfeld
2022-01-19 15:03 ` Jason A. Donenfeld
2022-01-19 12:34 ` Miles Chen
2022-01-19 12:34 ` Miles Chen
2022-01-19 12:34 ` Miles Chen
2022-01-19 10:13 ` Ard Biesheuvel
2022-01-19 10:13 ` Ard Biesheuvel
2022-01-19 10:13 ` Ard Biesheuvel
2022-01-19 10:20 ` Jason A. Donenfeld
2022-01-19 10:20 ` Jason A. Donenfeld
2022-01-19 10:20 ` Jason A. Donenfeld
2022-01-19 10:35 ` Ard Biesheuvel
2022-01-19 10:35 ` Ard Biesheuvel
2022-01-19 10:35 ` Ard Biesheuvel
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