From: Eric Biggers <ebiggers@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: "Herbert Xu" <herbert@gondor.apana.org.au>,
"João Moreira" <joao.moreira@intel.com>,
"Ard Biesheuvel" <ard.biesheuvel@linaro.org>,
"Sami Tolvanen" <samitolvanen@google.com>,
"Stephan Mueller" <smueller@chronox.de>,
x86@kernel.org, linux-crypto@vger.kernel.org,
linux-kernel@vger.kernel.org,
kernel-hardening@lists.openwall.com
Subject: Re: [PATCH v6 1/8] crypto: x86/glue_helper: Regularize function prototypes
Date: Thu, 21 Nov 2019 18:04:55 -0800 [thread overview]
Message-ID: <20191122020455.GA32523@sol.localdomain> (raw)
In-Reply-To: <20191122010334.12081-2-keescook@chromium.org>
On Thu, Nov 21, 2019 at 05:03:27PM -0800, Kees Cook wrote:
> The crypto glue performed function prototype casting to make indirect
> calls to assembly routines. Instead of performing casts at the call
> sites (which trips Control Flow Integrity prototype checking), switch
> each prototype to a common standard set of arguments which allows the
> incremental removal of the existing macros. In order to keep pointer
> math unchanged, internal casting between u128 pointers and u8 pointers
> is added.
>
> Co-developed-by: João Moreira <joao.moreira@intel.com>
> Signed-off-by: Kees Cook <keescook@chromium.org>
Co-developers need their own Signed-off-by. checkpatch.pl warns about this.
- Eric
next prev parent reply other threads:[~2019-11-22 2:05 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-22 1:03 [PATCH v6 0/8] crypto: x86: Fix indirect function call casts Kees Cook
2019-11-22 1:03 ` [PATCH v6 1/8] crypto: x86/glue_helper: Regularize function prototypes Kees Cook
2019-11-22 2:04 ` Eric Biggers [this message]
2019-11-22 1:03 ` [PATCH v6 2/8] crypto: x86/serpent: Remove glue function macros usage Kees Cook
2019-11-22 1:03 ` [PATCH v6 3/8] crypto: x86/camellia: Remove glue function macro usage Kees Cook
2019-11-22 1:03 ` [PATCH v6 4/8] crypto: x86/twofish: " Kees Cook
2019-11-22 1:03 ` [PATCH v6 5/8] crypto: x86/cast6: " Kees Cook
2019-11-22 1:03 ` [PATCH v6 6/8] crypto: x86/aesni: " Kees Cook
2019-11-22 2:08 ` Eric Biggers
2019-11-22 1:03 ` [PATCH v6 7/8] crypto: x86/glue_helper: Remove function prototype cast helpers Kees Cook
2019-11-22 1:03 ` [PATCH v6 8/8] crypto, x86/sha: Eliminate casts on asm implementations Kees Cook
2019-11-22 3:06 ` Eric Biggers
2019-11-22 2:21 ` [PATCH v6 0/8] crypto: x86: Fix indirect function call casts Eric Biggers
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