linux-kernel - [PATCH 5/6] crypto: testmgr - disallow plain ghash in FIPS mode

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Message-Id: <20221221224111.19254-6-vdronov@redhat.com>
Date:   Wed, 21 Dec 2022 23:41:10 +0100
From:   Vladis Dronov <vdronov@...hat.com>
To:     herbert@...dor.apana.org.au, davem@...emloft.net
Cc:     nstange@...e.de, elliott@....com, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, smueller@...onox.de,
        vdronov@...hat.com
Subject: [PATCH 5/6] crypto: testmgr - disallow plain ghash in FIPS mode

From: Nicolai Stange <nstange@...e.de>

ghash may be used only as part of the gcm(aes) construction in FIPS
mode. Since commit d6097b8d5d55 ("crypto: api - allow algs only in specific
constructions in FIPS mode") there's support for using spawns which by
itself are marked as non-approved from approved template instantiations.
So simply mark plain ghash as non-approved in testmgr to block any attempts
of direct instantiations in FIPS mode.

Signed-off-by: Nicolai Stange <nstange@...e.de>
Signed-off-by: Vladis Dronov <vdronov@...hat.com>
---
 crypto/testmgr.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 562463a77a76..a223cf5f3626 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -5125,7 +5125,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 	}, {
 		.alg = "ghash",
 		.test = alg_test_hash,
-		.fips_allowed = 1,
 		.suite = {
 			.hash = __VECS(ghash_tv_template)
 		}
-- 
2.38.1