From: Herbert Xu <herbert@gondor.apana.org.au>
To: Eric Biggers <ebiggers@kernel.org>
Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
larryw3i <larryw3i@yeah.net>,
stable@vger.kernel.org, AlanSong-oc@zhaoxin.com,
CobeChen@zhaoxin.com, GeorgeXue@zhaoxin.com, HansHu@zhaoxin.com,
LeoLiu-oc@zhaoxin.com, TonyWWang-oc@zhaoxin.com,
YunShen@zhaoxin.com
Subject: Re: [PATCH] crypto: padlock-sha - Disable broken driver
Date: Tue, 18 Nov 2025 11:34:50 +0800 [thread overview]
Message-ID: <aRvpWqwQhndipqx-@gondor.apana.org.au> (raw)
In-Reply-To: <20251116183926.3969-1-ebiggers@kernel.org>
On Sun, Nov 16, 2025 at 10:39:26AM -0800, Eric Biggers wrote:
> This driver is known broken, as it computes the wrong SHA-1 and SHA-256
> hashes. Correctness needs to be the first priority for cryptographic
> code. Just disable it, allowing the standard (and actually correct)
> SHA-1 and SHA-256 implementations to take priority.
...
> diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
> index a6688d54984c..16ea3e741350 100644
> --- a/drivers/crypto/Kconfig
> +++ b/drivers/crypto/Kconfig
> @@ -38,11 +38,11 @@ config CRYPTO_DEV_PADLOCK_AES
> If unsure say M. The compiled module will be
> called padlock-aes.
>
> config CRYPTO_DEV_PADLOCK_SHA
> tristate "PadLock driver for SHA1 and SHA256 algorithms"
> - depends on CRYPTO_DEV_PADLOCK
> + depends on CRYPTO_DEV_PADLOCK && BROKEN
It's only broken on ZHAOXIN, so this should be conditional on
CPU_SUP_ZHAOXIN.
Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2025-11-18 3:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <a1ed50c2-7338-4c97-8c36-84d2fa83d018@yeah.net>
2025-11-16 15:50 ` linux-image-amd64: self-tests for sha256 using sha256-padlock-nano failed larryw3i
2025-11-16 18:39 ` [PATCH] crypto: padlock-sha - Disable broken driver Eric Biggers
2025-11-17 9:03 ` AlanSong-oc
2025-11-17 10:08 ` larryw3i
2025-11-18 8:22 ` AlanSong-oc
2025-11-19 3:41 ` larryw3i
2025-11-18 3:34 ` Herbert Xu [this message]
2025-11-18 4:02 ` Eric Biggers
2025-12-17 4:30 ` AlanSong-oc
2025-12-17 4:56 ` Herbert Xu
2025-12-17 9:04 ` AlanSong-oc
2026-01-06 14:47 ` larryw3i
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