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

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Message-ID: <20250731192545.29869-1-ebiggers@kernel.org>
Date: Thu, 31 Jul 2025 12:25:43 -0700
From: Eric Biggers <ebiggers@...nel.org>
To: 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>
Cc: linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Eric Biggers <ebiggers@...nel.org>
Subject: [PATCH 0/2] thunderbolt: HMAC fix and cleanup

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

 drivers/thunderbolt/Kconfig  |  4 ++--
 drivers/thunderbolt/domain.c | 45 ++++++------------------------------
 2 files changed, 9 insertions(+), 40 deletions(-)


base-commit: d6084bb815c453de27af8071a23163a711586a6c
-- 
2.50.1