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From: chinayanlei2002@163.com
To: herbert@gondor.apana.org.au, tglx@linutronix.de,
	mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com
Cc: linux-crypto@vger.kernel.org, Yan Lei <yan_lei@dahuatech.com>
Subject: [PATCH] x86: crypto: fix Using uninitialized value walk.flags
Date: Sun, 10 Apr 2022 14:07:57 +0800	[thread overview]
Message-ID: <20220410060757.4009-1-chinayanlei2002@163.com> (raw)

From: Yan Lei <yan_lei@dahuatech.com>

----------------------------------------------------------
Using uninitialized value "walk.flags" when calling "skcipher_walk_virt".

Signed-off-by: Yan Lei <yan_lei@dahuatech.com>
---
 arch/x86/crypto/sm4_aesni_avx_glue.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/crypto/sm4_aesni_avx_glue.c b/arch/x86/crypto/sm4_aesni_avx_glue.c
index 7800f77d6..417e3bbfe 100644
--- a/arch/x86/crypto/sm4_aesni_avx_glue.c
+++ b/arch/x86/crypto/sm4_aesni_avx_glue.c
@@ -40,7 +40,7 @@ static int sm4_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
 
 static int ecb_do_crypt(struct skcipher_request *req, const u32 *rkey)
 {
-	struct skcipher_walk walk;
+	struct skcipher_walk walk = { 0 };
 	unsigned int nbytes;
 	int err;
 
@@ -94,7 +94,7 @@ int sm4_cbc_encrypt(struct skcipher_request *req)
 {
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct skcipher_walk walk;
+	struct skcipher_walk walk = { 0 };
 	unsigned int nbytes;
 	int err;
 
@@ -128,7 +128,7 @@ int sm4_avx_cbc_decrypt(struct skcipher_request *req,
 {
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct skcipher_walk walk;
+	struct skcipher_walk walk = { 0 };
 	unsigned int nbytes;
 	int err;
 
@@ -192,7 +192,7 @@ int sm4_cfb_encrypt(struct skcipher_request *req)
 {
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct skcipher_walk walk;
+	struct skcipher_walk walk = { 0 };
 	unsigned int nbytes;
 	int err;
 
@@ -234,7 +234,7 @@ int sm4_avx_cfb_decrypt(struct skcipher_request *req,
 {
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct skcipher_walk walk;
+	struct skcipher_walk walk = { 0 };
 	unsigned int nbytes;
 	int err;
 
@@ -303,7 +303,7 @@ int sm4_avx_ctr_crypt(struct skcipher_request *req,
 {
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct skcipher_walk walk;
+	struct skcipher_walk walk = { 0 };
 	unsigned int nbytes;
 	int err;
 
-- 
2.30.0


             reply	other threads:[~2022-04-18 14:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-10  6:07 chinayanlei2002 [this message]
2022-04-18 19:30 ` [PATCH] x86: crypto: fix Using uninitialized value walk.flags Eric Biggers

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