From: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> [ Upstream commit 9f31eb6e08cc1b0eb3926eebf4c51467479a7722 ] 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@xxxxxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/crypto/ccree/cc_aead.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c index aa6b45bc13b98..c9233420fe421 100644 --- a/drivers/crypto/ccree/cc_aead.c +++ b/drivers/crypto/ccree/cc_aead.c @@ -2058,6 +2058,8 @@ 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; @@ -2087,6 +2089,8 @@ 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; @@ -2106,6 +2110,8 @@ 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; @@ -2133,6 +2139,8 @@ 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; @@ -2250,6 +2258,8 @@ 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; @@ -2273,6 +2283,8 @@ 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; @@ -2305,6 +2317,8 @@ 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; @@ -2328,6 +2342,8 @@ 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; -- 2.20.1
