linux-kernel - Re: [PATCH 0/5] lib/crypto: Poly1305 fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAMj1kXEdeeuceNXpoFjjwH_SnhEYm-sgZtFuA-bOy=5zYjkx4g@mail.gmail.com>
Date: Tue, 8 Jul 2025 13:22:39 +1000
From: Ard Biesheuvel <ardb@...nel.org>
To: Eric Biggers <ebiggers@...nel.org>
Cc: linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org, 
	"Jason A . Donenfeld" <Jason@...c4.com>, linux-arm-kernel@...ts.infradead.org, x86@...nel.org
Subject: Re: [PATCH 0/5] lib/crypto: Poly1305 fixes

On Mon, 7 Jul 2025 at 09:11, Eric Biggers <ebiggers@...nel.org> wrote:
>
> This series is also available at:
>
>     git fetch https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git poly1305-fixes
>
> This series fixes the arm, arm64, and x86 Poly1305 functions to not
> corrupt random tasks' registers when called in the "wrong" context.  It
> also fixes a performance regression on x86 with short messages.
>
> This series is needed for my upcoming poly1305_kunit test to pass.
>
> Eric Biggers (5):
>   lib/crypto: arm/poly1305: Remove unneeded empty weak function
>   lib/crypto: arm/poly1305: Fix register corruption in no-SIMD contexts
>   lib/crypto: arm64/poly1305: Fix register corruption in no-SIMD
>     contexts
>   lib/crypto: x86/poly1305: Fix register corruption in no-SIMD contexts
>   lib/crypto: x86/poly1305: Fix performance regression on short messages
>

Reviewed-by: Ard Biesheuvel <ardb@...nel.org>

>  lib/crypto/arm/poly1305-glue.c   |  8 ++----
>  lib/crypto/arm64/poly1305-glue.c |  3 +-
>  lib/crypto/x86/poly1305_glue.c   | 48 +++++++++++++++++++++++++++++++-
>  3 files changed, 51 insertions(+), 8 deletions(-)
>
>
> base-commit: f1da28dfadd26ef95bbd0b1ddf066e7ffe1505ff
> --
> 2.50.0
>