linux-kernel - Re: [PATCH 0/2] thunderbolt: HMAC fix and cleanup

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Message-ID: <20250811055841.GR476609@black.igk.intel.com>
Date: Mon, 11 Aug 2025 07:58:41 +0200
From: Mika Westerberg <mika.westerberg@...ux.intel.com>
To: Eric Biggers <ebiggers@...nel.org>
Cc: linux-usb@...r.kernel.org, Andreas Noever <andreas.noever@...il.com>,
	Michael Jamet <michael.jamet@...el.com>,
	Mika Westerberg <westeri@...nel.org>,
	Yehezkel Bernat <YehezkelShB@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] thunderbolt: HMAC fix and cleanup

On Thu, Jul 31, 2025 at 12:25:43PM -0700, Eric Biggers wrote:
> Patch 1 fixes the HMAC comparison in the thunderbolt driver to be
> constant-time.
> 
> Patch 2 simplifies the HMAC computation in the thunderbolt driver by
> using the library API instead of crypto_shash.  Note that this depends
> on the HMAC-SHA256 library API that was merged for v6.17-rc1.
> 
> Eric Biggers (2):
>   thunderbolt: Compare HMAC values in constant time
>   thunderbolt: Use HMAC-SHA256 library instead of crypto_shash

Both applied to thunderbolt.git/next, thanks!