linux-kernel - [PATCH v2] crypto: ccp - Release all allocated memory if sha type is invalid

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Message-Id: <20190919160449.4303-1-navid.emamdoost@gmail.com>
Date:   Thu, 19 Sep 2019 11:04:48 -0500
From:   Navid Emamdoost <navid.emamdoost@...il.com>
To:     ghook@....com
Cc:     emamd001@....edu, smccaman@....edu, kjlu@....edu,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Gary Hook <gary.hook@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] crypto: ccp - Release all allocated memory if sha type is invalid

Release all allocated memory if sha type is invalid:
In ccp_run_sha_cmd, if the type of sha is invalid, the allocated
hmac_buf should be released.

v2: fix the goto.

Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
---
 drivers/crypto/ccp/ccp-ops.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index 9bc3c62157d7..440df9208f8f 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -1782,8 +1782,9 @@ static int ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
 			       LSB_ITEM_SIZE);
 			break;
 		default:
+			kfree(hmac_buf);
 			ret = -EINVAL;
-			goto e_ctx;
+			goto e_data;
 		}
 
 		memset(&hmac_cmd, 0, sizeof(hmac_cmd));
-- 
2.17.1