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authorGilad Ben-Yossef <gilad@benyossef.com>2019-04-18 16:38:54 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-04-25 10:38:15 +0300
commit9f31eb6e08cc1b0eb3926eebf4c51467479a7722 (patch)
treeb2ba8f104dceda539fa3370040cf75bcdbf885fb /drivers/crypto
parent03963caeb0dd77b1ead84a5ec913a7d28e8fe816 (diff)
downloadlinux-9f31eb6e08cc1b0eb3926eebf4c51467479a7722.tar.xz
crypto: ccree - zero out internal struct before use
We did not zero out the internal struct before use causing problem in some rare error code paths. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/ccree/cc_aead.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c
index 16ae6081c4cb..d9d1c2c1c4d6 100644
--- a/drivers/crypto/ccree/cc_aead.c
+++ b/drivers/crypto/ccree/cc_aead.c
@@ -2095,6 +2095,8 @@ static int cc_aead_encrypt(struct aead_request *req)
struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
int rc;
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->backup_giv = NULL;
@@ -2124,6 +2126,8 @@ static int cc_rfc4309_ccm_encrypt(struct aead_request *req)
goto out;
}
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->backup_giv = NULL;
@@ -2143,6 +2147,8 @@ static int cc_aead_decrypt(struct aead_request *req)
struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
int rc;
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->backup_giv = NULL;
@@ -2170,6 +2176,8 @@ static int cc_rfc4309_ccm_decrypt(struct aead_request *req)
goto out;
}
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->backup_giv = NULL;
@@ -2287,6 +2295,8 @@ static int cc_rfc4106_gcm_encrypt(struct aead_request *req)
goto out;
}
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->backup_giv = NULL;
@@ -2310,6 +2320,8 @@ static int cc_rfc4543_gcm_encrypt(struct aead_request *req)
struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
int rc;
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
//plaintext is not encryped with rfc4543
areq_ctx->plaintext_authenticate_only = true;
@@ -2342,6 +2354,8 @@ static int cc_rfc4106_gcm_decrypt(struct aead_request *req)
goto out;
}
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->backup_giv = NULL;
@@ -2365,6 +2379,8 @@ static int cc_rfc4543_gcm_decrypt(struct aead_request *req)
struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
int rc;
+ memset(areq_ctx, 0, sizeof(*areq_ctx));
+
//plaintext is not decryped with rfc4543
areq_ctx->plaintext_authenticate_only = true;