linux-kernel - [PATCH 3/3] crypto: stm32 - use memzero

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1616721648-56258-4-git-send-email-yekai13@huawei.com>
Date:   Fri, 26 Mar 2021 09:20:48 +0800
From:   Kai Ye <yekai13@...wei.com>
To:     <herbert@...dor.apana.org.au>
CC:     <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <wangzhou1@...ilicon.com>, <yekai13@...wei.com>
Subject: [PATCH 3/3] crypto: stm32 - use memzero_explicit() for clearing data

use memzero_explicit instead of memset to clear sensitive data

Signed-off-by: Kai Ye <yekai13@...wei.com>
---
 drivers/crypto/stm32/stm32-cryp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index 2a479317..c4297e80 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -675,7 +675,7 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err)
 		crypto_finalize_skcipher_request(cryp->engine, cryp->req,
 						   err);
 
-	memset(cryp->ctx->key, 0, cryp->ctx->keylen);
+	memzero_explicit(cryp->ctx->key, cryp->ctx->keylen);
 }
 
 static int stm32_cryp_cpu_start(struct stm32_cryp *cryp)
-- 
2.8.1