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Date:   Thu, 9 Jul 2020 22:44:04 +1000
From:   Herbert Xu <herbert@gondor.apana.org.au>
To:     Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        John Allen <john.allen@amd.com>
Subject: [PATCH] crypto: ccp - Silence strncpy warning
Message-ID: <20200709124404.GA27076@gondor.apana.org.au>
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Sender: linux-crypto-owner@vger.kernel.org
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This patch kills an strncpy by using strscpy instead.  The name
would be silently truncated if it is too long.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c
index b0cc2bd73af8..2bc29736fa45 100644
--- a/drivers/crypto/ccp/ccp-crypto-sha.c
+++ b/drivers/crypto/ccp/ccp-crypto-sha.c
@@ -19,6 +19,7 @@
 #include <crypto/internal/hash.h>
 #include <crypto/sha.h>
 #include <crypto/scatterwalk.h>
+#include <linux/string.h>
 
 #include "ccp-crypto.h"
 
@@ -424,7 +425,7 @@ static int ccp_register_hmac_alg(struct list_head *head,
 	*ccp_alg = *base_alg;
 	INIT_LIST_HEAD(&ccp_alg->entry);
 
-	strncpy(ccp_alg->child_alg, def->name, CRYPTO_MAX_ALG_NAME);
+	strscpy(ccp_alg->child_alg, def->name, CRYPTO_MAX_ALG_NAME);
 
 	alg = &ccp_alg->alg;
 	alg->setkey = ccp_sha_setkey;
-- 
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