diff mbox series

[19/35] crypto: ccree: zero out internal struct before use

Message ID 20190418133913.9122-20-gilad@benyossef.com
State Accepted
Commit 9f31eb6e08cc1b0eb3926eebf4c51467479a7722
Headers show
Series None | expand

Commit Message

Gilad Ben-Yossef April 18, 2019, 1:38 p.m. UTC 
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>

---
 drivers/crypto/ccree/cc_aead.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

-- 
2.21.0
diff mbox series

Patch

diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c
index ed306a612c0f..0fa676b5603c 100644
--- a/drivers/crypto/ccree/cc_aead.c
+++ b/drivers/crypto/ccree/cc_aead.c
@@ -2062,6 +2062,8 @@  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;
@@ -2091,6 +2093,8 @@  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;
@@ -2110,6 +2114,8 @@  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;
@@ -2137,6 +2143,8 @@  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;
@@ -2254,6 +2262,8 @@  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;
@@ -2277,6 +2287,8 @@  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;
 
@@ -2309,6 +2321,8 @@  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;
@@ -2332,6 +2346,8 @@  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;